The circled one please
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Answer:

Because the average speed can be 0-16 m/s. But the peak speed must be 16 m/s.

Taiwan's Taipei has the world's fastest elevators. Since peak speed is the quickest that any moving body can go, it is greater than average speed. The average speed is 15 m/s, while the top speed may reach 16 m/s.

Speed is the overall distance an item travels in a given amount of time.

speed =distance traveled /time consumed

Taiwan's Taipei has the world's fastest elevators. Because peak speed is the fastest that any moving body can move, it is why peak speed is greater than average speed.

The average speed is 15 m/s, while the top speed may reach 16 m/s.

While the average speed is an indication of the average.

Thus, the peak speed is higher than the average speed.

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Answer:

what's your question?

Explanation:

I'm standby to answering your question.

Explanation:

s.i unit of force is kgm/s²

dimensions of force is ML/T²

s.i unit of power kgm²/s³

dimension of power is ML²/T³

s.i unit of volume is m³

the dimension of volume is L³

Answer:

Below

Explanation:

You can use this formula to find the average speed or velocity of an object

     speed = displacement / elapsed time

Plugging in our values....

     speed = 2500 m / 40 seconds

               = 62.5 m/s

*if your teacher required you to round to significant figures, you would round this number to 60, as 40 seconds only has 1 significant figure (the number with the least amount of sig figs determines the number of sig figs in the final answer)*

Hope this helps! Best of luck <3

Answer:

Newton's second law of motion states that the acceleration ( a) experienced by an object is directly proportional to the net force ( Fnet) experienced by the object and inversely proportional to the mass of the object. In equation form, it could be said that a = Fnet/m. The net force is the vector sum of all the individual force values.

Explanation:

Answer:

[tex]35.0\; \rm m \cdot s^{-1}[/tex].

Explanation:

The question states that the rocket gains speed steadily. In other words, the acceleration of this rocket in that four seconds would be constant.

Using information from the question:

Apply the SUVAT equation [tex]\displaystyle \frac{1}{2}\, a \cdot t^{2} + v_{0}\cdot t = x[/tex] to find [tex]a[/tex], the acceleration of this rocket.

[tex]\displaystyle \frac{1}{2}\, a \times (4.00\; {\rm s})^{2} + 0 = 70.0\; \rm m[/tex].

[tex]\begin{aligned}a &= \frac{70.0\; \rm m}{\displaystyle \frac{1}{2} \times (4.00\; {\rm s})^{2}} = 8.75\; \rm m \cdot s^{-2}\end{aligned}[/tex].

In other words, this rocket accelerated from rest at a constant [tex]a = 8.75\; \rm m \cdot s^{-2}[/tex] for [tex]t = 4.00\; \rm s[/tex]. The final velocity of this rocket would be:

[tex]\begin{aligned}& v_{0} + a\cdot t \\ =\; & 0 \; \rm m\cdot s^{-1} + 8.75\; \rm m\cdot s^{-2} \times 4.00\; \rm s \\ =\; & 35.0\; \rm m\cdot s^{-1}\end{aligned}[/tex].

Answer:

Below

Explanation:

You can use this formula to find the density of something

     density = mass / volume

Plugging our values in.....

     density = 13.2 / 14

     density = 0.9428571429 g/mL

Rounding to sig figs we get....

     density = 0.94 g/mL

Hope this helps! Best of luck <3

Answer:

[tex]\huge\boxed{\sf Density = 0.94\ g/mL}[/tex]

Explanation:

Given:

Volume = 14 mL

Mass = 13.2 g

Required:

Density = ?

Formula:

Density = Mass / Volume

Solution:

Density = 13.2 / 14

Density = 0.94 g/mL

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

Answer:

A to the left increases and decreases

Answer:

I think it is A. electrical.

Explanation:

I believe it is A, because most people today have phones and IOT use a phone, it has to be charged, and IOT charge a phone you have to use an outlet which uses electrical energy.

We have that  the Energy sources used today are mostly in electrical form as the are required in the most accepts of living.

Option A

From the Question we are Given

a. electrical

b. chemical

c. nuclear

d. radiant

Generally all energy sources listed below are all good sources of energy and a very reliable

But the Energy sources used today are mostly in electrical form as the are required in the most accepts of living.

Therefore

The correct option is Option A

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Average speed is difined as the total distance travelled divided by the total time required to cover the distance. Mathematically, it is expressed as:

[tex]Ave. Speed = \frac{Total distance }{Total time}[/tex]

To obtain the average speed of Daniel, we shall determine the distance travelled in each case. This is illustrated below:

Speed 1 (S₁) = 6 mph

Time 1 (t₁) = 0.8 h.

[tex]Speed = \frac{Distance}{Time} \\\\S_{1} = \frac{D_{1}}{t_{1}} \\\\6 = \frac{D_{1}}{0.8}[/tex]

Cross multiply

D₁ = 6 × 0.8

Speed 2 (S₂) = 2 mph

Time 2 (t₂) = 1.2 h.

[tex]S_{2} = \frac{D_{2}}{t_{2}}\\\\2 = \frac{D_{2}}{1.2}[/tex]

Cross multiply

D₂ = 2 × 1.2

Next, we shall determine the total time. This can be obtained as follow:

Time 1 (t₁) = 0.8 h.

Time 2 (t₂) = 1.2 h.

T = t₁ + t₂

T = 0.8 + 1.2

Next, we shall determine the total distance. This can be obtained as follow:

Distance 1 (D₁) = 4.8 mile

Distance 2 (D₂) = 2.4 mile

D = D₁ + D₂

D = 4.8 + 2.4

Finally, we shall determine the average speed of Daniel. This can be obtained as follow:

Total time = 2 h

Total distance  = 7.2 mile

[tex]Ave. speed = \frac{Total distance }{Total time} \\\\Ave. speed = \frac{7.2 }{2}[/tex]

Therefore, the average speed of Daniel is 3.6 mph

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Answer: 9+3.5 m/52

Explanation:d=vit + 1/2 at2

d=0 + 1/2 -2 at2

d2/+2=A

a=(28m)/40.52

Answer:

the occupational respiratory disorders are the one that occur

due to long term inhalation of chemical proteins and dust and it affects respiration badly.

Explanation:

Answer:

A. 2s

Explanation:

time = distance ÷ speed

T = .2 ÷.1

T= 2

The time interval will be Option B (0.02 s).

The given values in the question are:

Distance,

D = 0.2 m

Speed,

S = 0.1 m/s

As we know the formula,

→ [tex]Speed = \frac{Distance}{Time}[/tex]

or,

→ [tex]Time = \frac{Distance}{Speed}[/tex]

By substituting the values, we get

→           [tex]= \frac{0.2}{0.1}[/tex]

→           [tex]= 0.02 \ s[/tex]

Thus the above answer is right.

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Answer:

8.2 milliwatts = 8.2 x 10⁻³ watts = 8.2 x 10⁻⁶ kilowatts

Explanation:

There are 1000 milliwatts per watt and 1000 watts per kilowatt, therefore we need to move the decimal point 6 places to the left to convert mW to kW

Answer:

b. time-dependent magnetic field.

An electric field is associated with every time-dependent magnetic field.

An electric field is a physical field that surrounds electrically charged particles and acts as an attractor or repellent to all other charged particles in the vicinity. Additionally, it refers to a system of charged particles' physical field. The magnetic impact on moving electric charges, electric currents, and magnetic materials is described by a magnetic field, which is a vector field.

An electric field is produced by a time-varying magnetic field. The first law of Faraday states that an electromotive force is always produced when a conductor is exposed to a changing magnetic field. Induced current is the term for the current that results when the conductor circuit is closed.

An electric field is associated with every time-dependent magnetic field.

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Answer:

25 W bulb will fuse.

The voltages will divide their ratios between the bulbs if we were to connect them.

We have that the total pipe drip of [tex]X=155 mL/min.[/tex] expressed in gallons/day is

[tex]X=58.96gal/day[/tex]

From the Question we are told that

Pipe Drip[tex]=155 mL/min.[/tex]

Generally

We have that for mL to gallons conversion

[tex]1mL=0.000264172[/tex]

And

A minute to day con version is

[tex]1min=0.000694444[/tex]

Therefore

[tex]X=155 mL/min.[/tex]

[tex]X=155(\frac{0.000264172}{0.000694444})[/tex]

[tex]X=58.96gal/day[/tex]

In conclusion

The total pipe drip of [tex]X=155 mL/min.[/tex] expressed in gallons/day is [tex]X=58.96gal/day[/tex]

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Answer:

Weight of the body,W=63 N

Acceleration due to gravity at height h from the Earths surface is given by the relation:

g  ′ =  (1+  R  e ​   h ​  )  2   g ​  

Substituting h=R  e ​  /2, g  ′  =4g/9  

Weight of body of mass m at height h is given as: W  ′  =mg  ′  

      =4/9 mg

      =4/9×63=28 N

Answer:

PE is an abbreviation for 'physical education'. Physical education is a course taught in school that focuses on developing physical fitness and the ability to perform and enjoy day-to-day physical activities with ease. Kids also develop skills necessary to participate in a wide range of activities, such as soccer, basketball, or swimming. Physical Education (PE) develops students' competence and confidence to take part in a range of physical activities that become a central part of their lives, both in and out of school. A high-quality PE curriculum enables all students to enjoy and succeed in many kinds of physical activity.  

Physical education is defined as formal instruction in exercise and proper eating. An example of physical education is gym class taught in middle school. ... Instruction in physical exercise and in the care and hygiene of the human bod

Answer:

29 m/s

Explanation:

65 mi/hr (1 hr/3600s)(5280 ft/mi)(12 in/ft)(2.54 cm/in)(1 m/100cm) = 29.0576

The speed  limit on Highway 85 in meters per seconds is 29.07m/s

Given the speed limit on highway 85 as 65mi/hr

Using the conversion rate:

2.23694 mi/hr = 1m/s

We are to convert 65mi/hr to m/s, we can therefore write:

65mi/hr = x

Divide both expressions

[tex]\frac{2.23594}{65} = \frac{1}{x} \\Cross \ mutiply\\ 2.23594x = 65\\x = \frac{65}{2.23594}\\x = 29.070m/s[/tex]

This shows that the speed  limit on Highway 85 in meters per second is 29.07m/s

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Answer:

7 (a).

» At melting point, temperature is constant and there is increase in vibràtory energy of solid molecules increases. In that case, the mobílity or lovomotive degree of the solid molecules because the intermolecular forces between them have became weaker. Hence molecules become further apart from each other hence a liquid formed.

(b).

The molecules of the ink get bonded to the water molecules. Since water molecules have a high degree of mobílity or locomotion in different directions, the ink molecules also tend to move in different directions hence water turns colored.

Explanation:

[tex].[/tex]

The temperature remains constant and solid molecular vibrantion energy rises near the melting point. In that circumstance, the mobility or locomotive degree of the solid molecules has decreased as a result of the weakening of the intermolecular interactions. As a result of the molecules growing further apart, a liquid was created.

It can be defined as the form of the energy in which heat is transferred from one body to another body due to their molecular movements, thermal energy is also known as heat energy.

The mobility or locomotive degree of the solid molecules has decreased as a result of the weakening of the intermolecular interactions. As a result of the molecules growing further apart, a liquid was created.

The ink molecules form bonds with the water droplets. Liquid changes color because of the ink molecules' propensity to migrate in distinct ways due to the great degree of mobility or motility that water droplets have.

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Answer:

1.  Perform

2. Alertly

3. Energy

4. Meeting

5. Endure

6. Stress

7. Unfit

8. Major

9.  Healthy

Answer:

The concept of zero net current in toroid occurs when we try to determine magnetic field induction outside toroid.

to determine magnetic field outside toroid, we consider a circular loop outside toroid as shown in figure.

to get the net enclosed current inside the loop, let us consider the crosssection AA' in toroid as shown in figure

as we see the crosssection AA' part of figure, we see that currents in the winding are in opposition directions at near to the loop

and far away from loop. Hence the concept of net current zero occurs in toroid when we try to determine

magnetic field induction outside toroid.

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Answer:The bulb did not glow as the switch is not turned on which obstructs electric current to flow through it. Also, the battery in the figure has both terminals as positive. It should be one negative terminal and one positive terminal.Redrawn diagram is also given

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Answer:

5¹/₃km/h

Explanation:

took him 45 minutes

in that 45 Minutes he travelled 4km

Answer: I think it’s point cd and line cd

Explanation:

Answer: By double checking your work and by using quality equipment it minimizes the error while measuring the length of the body

Explanation:

Hopefully this helps