Explanation

In an elastic collision, the total kinetic energy of the system remains conserved, meaning it remains the same before and after the collision.

This is because the collision is perfectly elastic, meaning no energy is lost or gained, and the objects rebound with the same velocity they had before the collision.

Explanation

Work done is equal to Effort x distance.

This is represented mathematically as 

W=F⋅d, where W is work, F is the force (or effort), and d is the distance over which the force is applied.

Explanation

Explanation

PV = nRT is the mathematical form of the ideal gas law.

It relates the pressure, volume, and temperature of an ideal gas with the amount of gas in moles and the universal gas constant.

Explanation

A cell converts chemical energy into electrical energy.

It generates electrical power through chemical reactions occurring within its electrodes and electrolyte.

Explanation

A proton is moving in an electric field described by the potential V= x+6. What is the force experienced by the proton F = −q. dv/dx.

Explanation

If the initial velocity is 40 m/s, time is 5 seconds, and acceleration is 10 m/s2, then the distance traveled is 325.

Explanation

The internal resistance of a device can be found by using additional information such as the voltage-current characteristic curve, as it provides a relationship between the voltage across the device and the current passing through it, allowing the determination of the internal resistance.

Explanation

The angle made by a vector with the x-axis is typically denoted by the Greek letter θ.

Explanation

The velocity required to put a satellite into orbit around the Earth is approximately 7.8 km/s.