Work and Energy… | NUST Entrance Test Physics

What will be the speed of electron having an energy of $1.82\times10^{-17}$ Joule?

Difficulty: Easy

A:

1.9\times10^{18}

B:

2.197\times10^{-25}

C:

2\times10^{7}

D:

None

What is the unit of Power?

Difficulty: Easy

A:

Watt

B:

Ampere

C:

Newton

D:

Joules

A body of mass m moving with velocity v has a kinetic energy K. If its velocity is increased by 25%, what will be the new kinetic energy?

Difficulty: Easy

A:

$\frac{25}{16}$ K

B:

$\frac{23}{34}$ K

C:

$\frac{12}{45}$ K

D:

$\frac{34}{58}$ K

Continue studying