The illustration shows a light ray striking an object.

An example of Newton's third law of motion is...

kipiarov [429]

Newton’s third law states that for every action there is an equal and opposite reaction therefore, the third answer is right

3 0

3 years ago

What are the formulas for Work, KE, GPE and Power?

Katyanochek1 [597]

Answer:

work=f×d

GPE =m×g×h

$kinetic energy = \frac{1}{2} mv {}^{2} \\ power = \frac{w}{t}$

6 0

3 years ago

Two charged bees land simultaneously on flowers that are separated by a finite distance. For a few moments, the charged bees res

damaskus [11]

Answer:

Same, the electric fields point in opposite directions and therefore cancel at some midpoint.

Explanation:

The Electric field net at some point between them is zero, only if they point in opposite direction (they cancel to the each other). In order the electric fields have opposite direction, at some point between the bees , the bees must have the same sign of electric charge

3 0

3 years ago

Engineers and science fiction writers have proposed designing space stations in the shape of a rotating wheel or ring, which wou

Gennadij [26K]

Answer:

a. The station is rotating at $1.496 \frac{rev}{min}$

b. the rotation needed is $2.8502 \frac{rev}{min}$

Explanation:

We know that the centripetal acceleration is

$a_{c}= \omega ^2 r$

where $\omega$ is the rotational speed and r is the radius. As the centripetal acceleration is feel like an centrifugal acceleration in the rotating frame of reference (be careful, as the rotating frame of reference is <u>NOT INERTIAL,</u> the centrifugal force is a fictitious force, the real force is the centripetal).