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3 years ago

What is the definition of power

Physics

2 answers:

andrew11 [14]3 years ago

4 0

Answer: .

energy that is produced by mechanical, electrical, or other means and used to operate a device.

Explanation:

brilliants [131]3 years ago

3 0

There are many definitions of power.

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The force on an object is given by the equation F = ma. In this equation, F is the force, m is the mass, and a is the accelerati

maw [93]

Formula

F= ma

Givens

m = 10 kg
a= 2.5 m/s^2

Solution

F = 10 * 2.5
F = 25 Newtons

Answer

7 0

3 years ago

The formation of new neurons is called __________.

nydimaria [60]

Answer:

Neurogenesis

Explanation:

3 0

3 years ago

Read 2 more answers

The linear expansion of a material depends on which of the following?

nordsb [41]

Answer:

1. The change in temperature of the material.

2. The length of the material.

3. The type of material.

Explanation:

The term linear expansion is defined as the increase in length of any conductor when there is a change in temperature. The new length of any wire or rod is given by :

$L=L_o(1+\alpha \Delta T)$

$L_o$ is the initial length of the rod

$\alpha$ is the coefficient of linear expansion

$\Delta T$ is the change in temperature

It is clear that the linear expansion of a material depends on :

1. The change in temperature of the material.

2. The length of the material.

3. The type of material.

So, all options are correct.

7 0

3 years ago

A basketball has a coefficient of restitution of 0.821 in collisions with the wood floor of a basketball court. The ball is drop

Tanya [424]

Answer: The height of its fourth bounce = 0.43m

Explanation:

The coefficient of restitution denoted by (e), is the ratio that shows the final velocity to initial relative velocity between two objects after collision

IT is given by the formula in terms of height as

Coefficient of Restitution, e = √(2gh))/√(2gH) = √(h/H)

Where

Coefficient of Restitution, e= 0.821

H = 2.07 m

At fourth bounce , we have that

Coefficient of Restitution, e⁴ =√(h₄/H)

Putting the given values and solving , we have,

e⁴ =√(h₄/H)

= 0.821⁴ = √(h₄/2.07)

(0.821⁴ )² =h₄/2.07

0.2064 x 2.07 = 0.427 = 0.43

At fourth bounce, h₄ height = 0.43m

7 0

3 years ago

Which statement describes a force acting on an object?

Aleonysh [2.5K]

Answer: B. A magnet pulls a nail towards it

Explanation: Out of the list of answers, this is the only answer where a force is acting on an object. the act of the magnet pulling on the nail is the force, and the nail is the object.

7 0

3 years ago