Answers
Answer:
1 st question: Control variable
2nd question: random variable
3rd question: if the two objects are dropped from the same height they will hit the ground at the same time
Answer:
it IS the control variable
Explanation:
Related Questions
if the electron affinity for an element is a negative number, does it mean that the anion of the element is more stable than the neutral atom?
Answers
No, the anion of the element is more stable than the neutral atom but an electron in an atom or ion is lower in energy than a free electron.
We know that,
Kinetic energy is defined as the energy of the object that occurs due to the motion of the object. The total work needed by the body to starts accelerating it by the help of given mass which is supplied from the rest position and its mentioned velocity.
The energy body gets due to the process of acceleration by this the body will able to main the kinetic energy of the body without changing the speed of the body.
The energy which has been stored in the body or any object by the help of the particular position or the proper arrangement of the parts is known as potential energy.
There will be no effect of the outside environment on the potential energy that present inside the body.
The kinetic energy decrease or increase with change into the velocity.
Therefore, No, the anion of the element is more stable than the neutral atom but an electron in an atom or ion is lower in energy than a free electron.
Learn more about kinetic energy here:
brainly.com/question/12669551
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15. A boy on board a cruise ship drops a 30.0 gram marble into the ocean. If the resistive force proportionality
constant is 0.50 kg/s, what is the terminal speed of the marble in m/s?
a. 0.06
b. 0.294
c.0.588
d. 60.0
e. 588.0
Answers
I could be wrong but I’m pretty sure it’s C
Explanation
A 1-kilogram stone is being dropped from a bridge 100 meters above a gorge.
What is the weight of the stone?
A. 1 newtons B. 10 newtons
C. 100 newtons D. 1,000 newtons
Answers
Answer:
C. 100 NEWTONS
Explanation:
just my brain being ly = brainly is the name so my brian is being ly
The weight of the stone is 10N.
To find the weight of the stone, we need to know about the gravitational force on any object due to earth.
What is gravitational force?Gravitational force is a attractive force that arises between any two objects. The objects, on the earth surface or near the earth surface, experience the gravitational force of earth. This gravitational force is Known as the weight of the object. How can we calculate the gravitational force or the weight of an object, when it's near the earth surface?When an object is near the earth surface, its weight is mass × gravitational acceleration (g).
So, the weight of the stone= 1kg × 10 m/s²
= 10 N
Thus, we can conclude that the weight of the stone 100 m above a gorge is 10N.
Learn more about weight here:
https://brainly.com/question/7195686
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I need help asap please
Will give BRAINLIST for correct answers only
Thank you
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:
225√3 N
Explanation:
225√3 N
if a person with a mass of 70kg is standing on scale in an elevator when the cable snaps, what will the reading on the scale be during free-fall?
Answers
Answer:
The reading will be the same.
Explanation:
Mass does not depend upon anything and it remains the same anywhere. What changes is the weight of the body because it depends upon gravity and is different at different places.
Giving me the brainest will be helpful.
The reading on the scale during free-fall will be the same. reading on the scale is independent of the external environment.
What is a weighing scale?A weighing scale known as a balance is a device used to quantify weight or mass. The classic scale is made up of two plates or bowls that are suspended at equal distances from a fulcrum.
A person with a mass of 70kg is standing on a scale in an elevator suddenly the cable snaps, The reading on the scale during free-fall will be the same as the initial elevator condition.
Hence the reading on the scale during free-fall will be the same. reading on the scale is independent of the external environment.
To learn more about the weighing scale refer to the link;
https://brainly.com/question/19340483
microwave ovens emit microwave energy with a wavelength of 12.5 cm. what is the energy of exactly one photon of this microwave radiation?
Answers
Answer:
1.5891x10^-24
hope this helped :)
a bus starts to move from rest. if its velocity becomes 90 km per hour after 8s second. calculate acceleraton
answer is 3.13ms-2
Answers
90 km per hour = 25 metres per second
[tex]a=\frac{v-u}{t}[/tex]
[tex]a=\frac{25-0}{8}[/tex]
[tex]a=3,13m/s^2[/tex]
Can someone please give me the answers to this? ... please ...
Answers
Answer:
See below:
Explanation:
What you have done seems to be correct, what we can do is just add a box into the center. For the 3rd question, we can just draw a box as nothing is happening. That is all!
Consider marking as brainliest if it helped!
Answer:
Explanation:
good luck
i think
True or False: the longer the hail stone is
kicked around by updrafts the larger it
gets.
Answers
こんにちは人々
False
How does the law of conservation of mass apply to this reaction: Mg + HCI + H2 MgClz?
O The equation needs to be balanced. There are fewer hydrogen atoms in the equation than magnesium or chlorine.
© Only the hydrogen needs to be balanced. There are equal numbers of magnesium and chiorine.
Hydrogen and chlorine need to be balanced. There is an equal amount of magnesium on each side
©
The
law of conservation of nÖss has already been
the equation.
applied. There is an equal number of each element on both sides of
Answers
You can’t just look at the individual elements. To balance the equation, Magnesium will be part of the balancing and hence you will be adding Magnesium to both sides of the equation etc
Can someone help me pls
Sorry if the photo is rubbish
Answers
Answer:
F
Explanation:
F is not a molecule, a molecule contains two or more cells. But F stands for fluorine, which I think is a singular cell.
A projectile is shot on level ground with a
horizontal velocity of 17 m/s and a vertical
velocity of 34 m/s.
-Find the time the projectile is in the air.
The acceleration due to gravity is 9.8 m/s2.
Answer in units of s.
-Find range R.
Answer in units of m.
Answers
Answer:
time rising = 34 / 9.8 = 3.47 sec
total time in air = 2 * 3.47 sec = 6.94 sec
(time rising must equal time falling)
R = 17 m/s * 6.94 s = 118 m
Can also use range formula
R = v^2 sin (2 theta) / g
tan theta = 34 / 17 = 2
theta = 63.4 deg
2 theta = 126.9 deg
sin 126.9 = .8
v^2 = 17^2 + 34^2 = 1445 m^2/s^2
R = 1445 * .8 / 9.8 = 118 m agreeing with answer found above
Trên bóng đèn có ghi là 12v -6w. Khi đèn sáng bình thường thì dòng điện chạy qua đèn có cường độ là
Answers
Answer:
I=P/U=6/12=0.5(A)
Explanation: P=UI ( CÔNG SUẤT = HIỆU ĐIỆN THẾ NHÂN VỚI C Đ D Đ)
If a 160W light bulb consumes 1000J of electrical energy in a given time, then in the same time interval, how much energy will a 40W light bulb consume?
Answers
1000J/ 4= 250J
a 40w light bulb will consume 250J
Answer:250J
Explanation:
160*t=1000
40* 1000/160= 250
(pls help me) Which event is an example of melting? A. Wax drips down the side of a lit candle. O B. Perspiration dries on a person's skin. O C. Rain turns to ice pellets. O D. A mirror fogs up when someone takes a hot shower.
Answers
Answer:
A. is correct thanks for sharing your question
please help me answer this
Answers
Answer:
Earth's atmosphere is made up of a combination of gases. The major components of nitrogen, oxygen, and argon remain constant over time and space, while trace components like CO 2 and water vapor vary considerably over both space and time.
Explanation:
it is C
Answer:
c
Explanation: O n O
Please help me to solve this question .
Answers
Answer:
P1 = momentum before collision = .5 kg * .32 m/s = .16 kg-m/s
Momentum is conserved
P1 = P2 = V * (M + m) = .16 kg-m/sec
V = .16 kg-m/sec / (.5 kg + .3 kg) = .2 m/sec
Andy took a bus and then walked from his home to downtown. For the first 1.6 hour, the bus drove at an average speed of (15km)/(h). For the next 0.4 hours, he walked at an average speed of (4.5km)/(h). What was the average speed for the whole journey?
Answers
Answer:
240
Explanation:
Dùng công thức gia tốc trọng trường g =GM/R^2 . Tìm gia tốc trọng trường gH trên sao Hỏabiết khối lượng sao Hỏa bằng 0,5325 bán kính Trái Đất, theo đơn vị m/s^2 . Biết gia tốc trọng trường Trái Đất gTĐ =9,8 m/s^2 .
A. 1,204
B. 0,305
C. 3,712
D. 6,218
Answers
How does the study of light provide knowledge about stars, galaxies, and the universe’s beginning?
Answer in 3 to 4 sentences.
Answers
Answer:
from spectral lines astronomers Can determine
a particle traveling around a circle at constant speed will not experience an acceleration.
Answers
Given the following velocity time graph of 7kg object what is the impulse during segment c (from35 to 55 seconds)
Answers
Answer:
9,11 N.s.,.................
How much must an object weigh to be able to float in water?
1: more than the amount of water it displaces
2: less than the amount of water it displaces
3: more than a gram
4: less than a gram
Answers
Answer:
less than one gram
Explanation:
big brain
Answer:
less than a gram
Explanation:
because yes
How would these two particle diagrams be classified?
A-) Both are pure substances each containing one type of compound
B-)Both are pure substances containing a mixture of elements
C-) Both are mixtures containing different types of compounds
D-) Both are mixtures containing more than one element
Answers
Answer:
A-) Both are pure substances each containing one type of compound
On a beautiful spring day, Juan is playing a round of golf. He hits the golf ball with an initial velocity of 44.9 m/s at an angle of 28 degrees. If it hits the ground 6s later, how far does it travel? Answer: ____m
Answers
Answer:
140m 13 degree
Explanation:
yan po thank nalang po sa point
what makes it difficult to see Mercury
Answers
Answer:
Mercury is the planet nearest the Sun and is the most difficult to observe, because it is always quite close to the Sun in the sky. Because of its orbital motion, it appears to swing back and forth around the Sun, reaching a maximum angular distance of about 28°.
Explanation:
I hope that helps you
Answer:
Mercury is very close to the Sun which means its hard to see the planet without the Sun's brightness outshining it. It is also the smallest planet in the solar system.
Hope this helps!
un auto recorre 212 km en un tiempo de 3.1 h.Calcular su rapidez en m/s
Answers
Para hacerlo a m/s un método muy práctico es sólo dividir entre 3.6, por cuestiones de conversiones, lo puedes comprobar.
212 km/hr /3.6 = 58 m/s
Comprobación :
V= d / t
V= 212 m / 18000 seg <---- nota que aquí los segundos son de las 3.1hrs
V= 58 m/seg
Demarcus launches a small weight into the air. The weight takes 6.4 seconds to reach the ground again. At what time did the weight have a vertical velocity of 0 meters per second?
Answers
During the process, the only force imposed on the small weight is gravity.
The time from launching to the highest is the same as the time from the highest to the ground. And the vertical velocity at 0 m/s is at the highest position.
cho mạch như hình vẽ E
=
24
V
,
r
=
1
Ω
,
R
1
=
3
Ω
,
R
2
=
R
3
=
R
4
=
6
Ω
Answers
Answer:
A
Explanation:
light travels 3,00,000 km/s. Is it velocity or speed?
Answers
Hello there I hope you are having a great day :)
Your Question, light travels 3,00,000 km/s. Is it velocity or speed?
The answer would be speed,
Hopefully that helps you :)