physics




what are the two correct choices??



choice1
- insulating
- neutral
- large
- conductive


choice2
- potential energy
- potential difference
- charge
- electric potential


Answers

Answer 1

Answer:

3 and 2

May be

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Related Questions

Li Wei loves cardio and finds it very easy to fit into his schedule. Because he knows it is important to diversify his exercise routine, sometimes he runs and other days he rides his bike. What else should Li Wei consider regarding his routine?


OPTIONS:

A.
He should add some strength training.
B.
He needs to add one more form of cardio.
C.
He has too much cardio and should cut half of it.
D.
His program works for him, so he should not change it.

PLEASE NO LINKS

Answers

Answer:

D.

Explanation:

Li Wei loves cardio and finds it very easy to fit into his schedule. Li Wei should consider his routine is his program works for him, so he should not change it. The correct option is D.

What is cardio?

Any form of exercise that raises your heart rate and keeps it there for a long time is considered cardio. As you start to breathe more quickly and deeply, your respiratory system will start to work harder.

The four components of a fitness program are flexibility, cardio, strength, and power.

The physical exercise that increases muscular strength and fitness is referred to as strength.The capacity to produce the most muscle contractions possible during a movement is referred to as power.Cardio refers to the capacity to handle various circumstances of various lengths.Flexibility is the characteristic that is linked to the range of motion offered by a particular joint.

Therefore, the correct option is D. His program works for him, so he should not change it.

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Why does it hurt more when you fall on concrete than on grass?

Answers

Answer:

Smaller forces are easier on your legs and you prefer to land on soft grass. Momentum/impulse explanation: Whether you land on concrete or soft grass, your change in momentum will be identical. A hard surface that brings you to a stop in 0.01 s requires a much larger force of 15,000 N.

Explanation:

Concrete is harder than the grass so that’s why

abebe wants to lift a 10N object from the ground. what is the minimum force he needs to exert​

Answers

Explanation:

object has a mass, but force, newton is Unit of force.

If the value of g is taken as 10, the mass of the object here is only 1 kg. You will need a force of 10N to lift 1kg mass against the gravity ...

What force is represented by the vector?
O friction
O gravity
O normal force
O push
Someone pls help

Answers

Well I think B hope this helps

Answer:

gravity

Explanation:

because it acts on a particular direction that is towards the ground

brainliest plz

Can someone please help me​

Answers

Answer:C (198 seconds)

Explanation: The cyclist makes the first lap in (180.00 - 6.00) = 174.00 seconds. The average time per lap for all three circuits is (600.00 - 6.00) = 594/3 = 198 seconds.

What is a similarity between chemical change and chemical properties

Answers

Answer:

How are physical and chemical changes similar and different? (compare and contrast) (Physical and chemical changes are similar because matter experiences a change in state, Physical changes are different because matter remains the same substance, just in a different state, whereas chemical changes change the matter

Answer: In a physical change like melting of ice , energy is given to increase the molecular saperarion between the molecules, leading to liquid water and its physical state also changes but chemically it is still H2O, no change in identity.

During a chemical change mass does not changes but it chemical chane, it do, for ex in rusting of iron, the Fe2O3 cover is comparable to mass of ice if thin sheetvis used for rusting and also in burning of candle which is made of hydrocarbon has its mass lost into air

how often do industrial oxygen cylinders need to be tested

Answers

Answer:

5 years[tex][/tex]

How to do this question plz answer ​

Answers

Explanation:

(i)

An analog signal has some feature that is a continuous function of the program material being transmitted. It may take on any of a range of values.

In radio, amplitude, frequency, or phase are features of the radio signal commonly modulated when transmitting an analog signal.

__

(ii)

A digital signal has some feature that is a discrete function of the program material being transmitted. It may take on any of a specific set of values.

A digital radio signal typically uses some combination of amplitude, frequency, and phase to represent a discrete state being transmitted. Only specific values of these are used by the transmitter.

(The receiver generally has to deal with corruption of the signal by the transmission channel, so the received set of values may not correlate well with those intended at the transmitter. This is why error-correcting codes are often used with digital signal transmission.)

_____

Additional comment

Analog radio signals are generally transmitted using a carrier wave at a specific frequency (or in some specific frequency range, in the case of frequency modulation). Processing techniques may be used at the transmitter to limit the bandwidth used in the transmission. One commonly-used technique is to limit the transmitted spectrum to one side of the carrier wave frequency. (This is called "single side-band" radio.)

Digital signals offer the opportunity to transmit different bits of the information at different frequencies. Sometimes, "frequency hopping" is used, so that the transmitted carrier wave jumps around from one frequency to another in a predetermined pattern. The effect of this is to spread out the spectrum of the transmitted signal so that average power in any frequency band is significantly reduced. In fact, it may be indistinguishable from background noise, except by a receiver that tunes to the carrier wave in the predetermined frequency pattern.

What is the displacement of the object from 2 seconds to 6 seconds
•4m
•8m
•16m
•24m

Answers

Answer:

,24m bolşi

Explanation:

dfgzffdsvh466ggsceaijtgcbnmzxygdcrescdrbniuyrlohahrcwehiim

Answer:

the answer is 16 m

hope this is helpful

Forces come in pairs. What are these pairs called?

Answers

Answer: Action-Reaction force pairs

Explanation: please make me brainiest thanks

Answer:

"action-reaction force pairs"

Explanation:

...

Two motorcycles travel along a straight road heading due north. At t = 0 motorcycle 1 is at x = 50 m and moves with a constant speed of 6.50 m/s; motorcycle 2 starts from rest at x = 0 and moves with constant acceleration. Motorcycle 2 passes motorcycle 1 at the time t = 10.08.

Part B What is the position of the two motorcycles when motorcycle 2 passes motorcycle 1? Express your answer to three significant figures and include the appropriate units.

Part C What is the acceleration of motorcycle 2? Express your answer to three significant figures and include the appropriate units.​

Answers

Answer:

Vf = 23 m/s

Explanation:

First we need to find the distance covered by the motorcycle 2 when it passes motorcycle 1. Using the uniform speed equation for motorcycle 1:

s₁ = v₁t₁

where,

s₁ = distance covered by motorcycle 1 = ?

v₁ = speed of motorcycle 1 = 6.5 m/s

t₁ = time = 10 s

Therefore,

s₁ = (6.5 m/s)(10 s)

s₁ = 65 m

Now, for the distance covered by motorcycle 2 at the meeting point. Since, the motorcycle started 50 m ahead of motorcycle 2. Therefore,

s₂ = s₁ + 50 m

s₂ = 65 m + 50 m

s₂ = 115 m

Now, using second equation of motion for motorcycle 2:

s₂ = Vi t + (1/2)at²

where,

Vi = initial velocity of motorcycle 2 = 0 m/s

Therefore,

115 m = (0 m/s)(10 s) + (1/2)(a)(10 s)²

a = 230 m/100 s²

a = 2.3 m/s²

Now, using 1st equation of motion:

Vf = Vi + at

Vf = 0 m/s + (2.3 m/s²)(10 s)

Vf = 23 m/s

the motion of the book as you lift it from the table and place it on the shelf

Answers

Answer:

what are you trying to do for this question

Explanation:

Which factor increases as the effiency of a machine increases

Answers

Answer:

1. The efficiency of the induction increases when the mechanical load increases because as the motors load increases, its slip increases, and the rotor speed falls. Since the rotor speed is slower, there is more relative motion between the rotor and the stator magnetic fields in the machine.

Explanation:

. Sunita is taking a train to Madurai. Her train has stopped at Trichinapally. She is facing the direction the train will be moving in . She can see a train next to her. The train is also going to Madurai and it leaves first. As the other train leaves, it seems to Sunita as if

Answers

The relative motion of the train next to her is the motion of the other train in her rest frame.

As the other train leaves, it seems to Sunita as if her train is moving backwards

Reason:

The motion of the train Sunita is taking is given by the rate of movement of

objects outside the train from the front side of the train towards the back

side of the train, that way she can tell that the train is moving.

The motion of the other train from the rear side of the train from the rear

side of the train to the front side is a reverse motion to what Sunita

observes when the train is moving forward. Therefore, as the other train

leaves, it seems to Sunita as if her train is moving backwards.

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How many electrons have been removed from a positively charged electroscope if it has a net charge of 1.6× 10−13 C?

Answers

Answer:

Tu mujhe banaye ga face dekh aapna mirror me

Answer:

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what are the magnifications of the objective lenses

Answers

Answer:

Objective Lenses: Usually you find 3 or 4 objective lenses on a microscope. They almost always consist of 4x, 10x, 40x and 100x powers, when coupled with a 10x (most common) eyepiece lens, total magnification is 40x (4x times 10x) 100x, 400x and 1000x

Explanation:

Objective lenses come in various magnification powers, with the most common being 4x, 10x, 40x, and 100x, also known as scanning, low power, high power and typically oil immersion objectives, respectively

a physics student throws a stone horizontally off a cliff. one second later, he throws a second identical stone in exactly the same way. which of the following statements is true?

Answers

The second stone hits the ground exactly one second after the first.

The distance traveled by each stone down the cliff is calculated using second kinematic equation;

[tex]h = v_0_yt + \frac{1}{2} gt^2[/tex]

where;

t is the time of motion [tex]v_0_y[/tex] is the initial vertical velocity of the stone = 0

[tex]h = \frac{1}{2} gt^2[/tex]

The time taken by the first stone to hit the ground is calculated as;

[tex]t_1 = \sqrt{\frac{2h}{g} }[/tex]

When compared to the first stone, the time taken by the second stone to hit the ground after 1 second it was released is calculated as

[tex]t_2 = \sqrt{\frac{2h}{g} } + 1[/tex]

[tex]t_2 = t_1 + 1[/tex]

Thus, we can conclude that the second stone hits the ground exactly one second after the first.

"Your question is not complete, it seems be missing the following information;"

A. The second stone hits the ground exactly one second after the first.

B. The second stone hits the ground less than one second after the first

C. The second stone hits the ground more than one second after the first.

D. The second stone hits the ground at the same time as the first.

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1.) 450 cm =____m

2.) 24 miles =____cm

3.) 16.7 gallons =____liters

Answers

Answer:

450cm = 4.5m

24miles = 3862430 cm (3.9×10⁶cm)

16.7 gallons = 63.216 liters (approx.)

Explanation:

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A force of 225 N at an angle of 30 degrees to the horizontal displacement. The component of the force that will cause work to be done is?

Answers

Answer:

225cos30

Explanation:

Force in the direction of the work done

225cos30
~~~~~~~~~~~~~

Which statement best describes a physical change?
A. Changes can occur to certain chemical properties of the substance, but the overall shape of the substance will remain the same.
B. Changes can occur to certain physical properties of the substance, but the overall shape of the substance will remain the same.
C. Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.
D. Changes can occur to chemical properties of a substance, but the chemical composition of the substance remains the same.

Answers

Answer:

c. changes can occur to certain physical properties

Explanation:

got it right on test

identity the organelle that found in a plant cell but not in an animal cell.
a) cell membrane
b) mitochondria
c) Ribosome
d) chloroplast​

Answers

Answer:

Chloroplast

Explanation:

The plant cell has a cell wall, chloroplasts, plastids, and a central vacuole—structures not found in animal cells. Plant cells do not have lysosomes or centrosomes.

Answer:

d

Explanation:

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Which of the following is an example of a buoyant force acting on an object?
A. The object remains still despite an applied force.
B. The object travels with straight-line horizontal acceleration.
C. The object floats on top of a fluid.
D. The object travels in uniform circular motion.

Answers

Answer:

option c theobject floats on top of a fluid

Which situation would create a field like the one shown here?

Answers

huh? what situation??

what observations about disks of dusty material around young stars suggest that planets may be forming in such disks?

Answers

Planets may be forming from dust disks because these disks are filled with completely empty lanes.

We can arrive at this answer because:

The existence of empty lanes allows the dust disks to transform into many different materials, including new planets.In this case, there is a cooling of the dust disk, which cools more and more over time.This cooling causes all the particles in that disk to clot.Coagulation increases the density of the particles and if they are dense enough they can form escape accretions.

Escape accretions allow for the formation of planetary embryos, which may form planets in the future.

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a constant current flows in the conductor with a magnitude of 1.6 mA. Calculate the charge and number of electrons transferred through the straight cross-section of the conductor in 1 hour.

Answers

Current=1.6mA=1.6×10^{-3}A=0.0016A=ITime=1h=3600s=tCharge=Q

[tex]\\ \sf\longmapsto I=\dfrac{Q}{t}[/tex]

[tex]\\ \sf\longmapsto Q=It[/tex]

[tex]\\ \sf\longmapsto Q=0.0016(3600)[/tex]

[tex]\\ \sf\longmapsto Q=5.76C[/tex]

what is lighting and lighting conductor​

Answers

Lightning happens when the negative charges (electrons) in the bottom of the cloud are attracted to the positive charges (protons) in the ground.


A lightning rod (US, AUS, CA) or lightning conductor (UK) is a metal rod mounted on a structure and intended to protect the structure from a lightning strike

jane pushed a box with 15 N force (an action) what force does the box have on Jane? which law is this?

Answers

Answer:

This is Newton’s third law (forces due to friction). There would be 15N being pushed back at Jane.

Explanation:

Newton’s third law states that for every action there is an equal and opposite reaction. So if Jane pushed with a force of 15N, 15N would be pushed back at her. Hope this helps! :)

An airplane flies with a velocity of 750. kilometers
per hour, 30.0° south of east. What is the
magnitude of the eastward component of the
plane's velocity?
A. 866 km/h
B. 650. km/h
D. 375 km/h
C. 433 km/h

Answers

B. 650 km/h is the correct answer

The magnitude of velocity in east direction will be 650 N approximately.

What is velocity ?

velocity is given by the change in distance by the object with respect to change in time. It is a vector quantity and having S.I unit as m/s.

Here it is given that magnitude of velocity is 750 N and making an angle of 30 degree with x axis in counterclockwise direction as shown in figure below :

Now resolving and writing magnitude of velocity V in x and y direction respectively :

[tex]\begin{aligned}Vcos\theta&= 750 cos30^{o}=650 \:m/s\\Vsin\theta&= 750sin30^{o}= 375 m/s\end{aligned}[/tex]

It should be noted that [tex]vsin\theta[/tex] is acting in negative y direction.

Therefore, the magnitude of velocity in east direction is 650 m/s

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A golf ball resting on a tee is hit, and its velocity changes from 0m/s to 50 m/s traveling down the fairway in 5 seconds. What was the golf ball's acceleration?

Answers

Answer:

Explanation:

55m/s

solve this question please

Answers

Answer:

[tex]( \nwarrow^{ + }) \sum \: F_{{y_{A}}_{2kg}} = F_{{y_{N_A}}_{2kg}} - m_{{y_{A}}_{2kg}}g \cos( \theta_{{y_{A}}_{2kg}}) = 0 \\ F_{{y_{N_A}}_{2kg}} = m_{{y_{A}}_{2kg}}g \cos( \theta_{{y_{A}}_{2kg}})...(1) \\ ( \nearrow^{ + }) \sum \: F_{{x_{A}}_{2kg}} = F_{{x_{T}}} - m_{{y_{A}}_{2kg}}g \sin( \theta_{{y_{A}}_{2kg}}) -F_{{Fr}_{A2kg}}= m_{{y_{A}}_{2kg}}a...(2) \\ \\ ( \nearrow^{ + }) \sum \: F_{{y_{B}}_{5kg}} = F_{{y_{N_B}}_{2kg}} - m_{{y_{B}}_{5kg}}g \cos( \theta_{{y_{B}}_{5kg}}) = 0 \\ F_{{y_{N_B}}_{5kg}} = m_{{y_{B}}_{5kg}}g \cos( \theta_{{y_{B}}_{5kg}})...(3) \\ ( \searrow^{ + }) \sum \: F_{{x_{B}}_{5kg}} = m_{{y_{B}}_{5kg}}g \sin( \theta_{{y_{B}}_{5kg}})-F_{{x_{T}}} -F_{{Fr}_{B5kg}}= m_{{y_{B}}_{5kg}}a...(4)[/tex]

Explanation:

All you need to do is plug in the values and solve the simultaneous equations to find the acceleration a, and T.

Always draw the free body diagram...

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A projectile is shot from the edge of a cliff 125 m above the ground level with an initial speed of 105 m/s at an angle of 37 degrees with the horizontal. (a) Determine the vertical velocity final. (it is not - vi, since we are on a cliff 125m up)A.)80.2 m/sB.)-80.2 m/sC.)40.2 m/sD.)-40. 2 m/s x>-1 help please!!!!! "Having demonstrated its versatility as a high-tech newswire, Twitter drew 5 pointsthe attention of those who would prefer to see certain informationsuppressed." If we replaced the word "versatility" with the synonym"functionality," how would this change the meaning of the sentence?The connotation of functionality implies a working tool, while versatility implies morethan one use.The connotation of functionality implies something new, while versatility impliesability to changeThe connotation of functionality implies a useful tool, while versatility implies a newinventionThe connotation of functionality implies something new, while versatility impliescapable of more than one use.h Identify the prepositions in the following three sentences. 1.) The football players always leave their notebook in the Captain's locker. 2.) The frightened, young girl ran inside the classroom when she heard the explosion. 3.) There was a black, ancient box above the cabinet. It was hidden from view. Pasta is best if cooked and served immediately. What do you need to do to follow this golden rule in presenting pasta dishes? Graeme is inviting 7 friends to a party.Each friend wants 4 cookies and each box has 12 cookies. How many boxes should Graeme get? whose the love of ur life rn David uses software to draw two triangles. He finds that he can use a rotation and a reflection to map one triangle onto the other, and he finds that the image of vertex D is vertex L, the image of vertex V is vertex C, and the image of vertex W is vertex Y. In how many different ways can David write a congruence statement for the triangles? Complete the explanation.Use the given information to select congruence statements.DVW DWV VDW VWD WDV WVD There are __ more ways with the order of the triangles reversed. There is a total of __ ways to write a congruence statement. Find the least square number divisible by 5, 10, 15. (a) 100 (b) 625 (c) 900 (d) 225 Express the inequality using interval notation. PLEASE HELP DUE TONIGHT WILL GIVE BRAINLIEST (The good life is to be earned with hard work and sacrifice).meaning? simplify the expression -2x(x+3) A: -x -6 B: -x + 6 C: -2x + 6 D: -2x - 6 Solve the problems from 10to 12 8 divided by 1 4/5 Arithmetic operation 20% of 400 is............. 1.35 - 0.829 SHOW YOUR WORK I don't get this please help The 6 elephants at the zoo have a combined weight of 11,894 pounds. About how much does each elephant weigh? What causes the south to have a humid subtropical climate? A collage containing photos of men in Naval uniforms, Naval ships, and handwritten postcards.Examine the photographic image above. Which of the following is true?a.This is an example of a portraiture because the artist has recorded facts about the world to provide others with information.b.This is an example of a montage because the artist has captured the likeness of a person through photography, usually in great detail of the facial expression.c.This is an example of a montage because the artist has combined several distinct images to produce a blended or combined picture.d.This is an example of a portraiture because the artist has created surreal images, which by re-exposing a partially developed print to light during the processing.