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How do I use the conservation of linear momentum to solve problems?

The linear momentum of a particle is defined as the product between the particle’s velocity (a vector) and the particle’s mass (a scalar quantity):
p=m·v.
The l...

Answered by Ellis C. • Physics tutor

3130 Views

How does refraction work?

The fastest light can travel is when it is in a vacuum, where it travels at 3x10^8 metres per second.

However, when light travels through another substance or material (anothe...

Answered by Conor P. • Physics tutor

11471 Views

How do I use equations of motion ('suvat') to find a missing quantity?

First, be familiar with the equations of motion:s = displacementu = initial velocityv = final velocitya = acceleration (constant)t = time
v = u + ats = ((u+v)t)/2s = ut + (at^2)/2v^2 = u^2 + 2as

Answered by Jessica H. • Physics tutor

3725 Views

why does applying the brakes of a car cause the temperature of the breaks to increase?

The increase in heat is caused by friction between the brakes and the wheels. This work done between the brakes and the wheels, causes a decrease in kinetic energy ...

Answered by Hugo H. • Physics tutor

14575 Views

What path would a charge moving in the x-y plane track, in the presence of a uniform magnetic field out of the page?

The magnetic force on a moving charge is always perpendicular to the directions of both velocity and B-field vectors. This means that in the presence of a uniform magnetic field, a particle will experienc...

Answered by Arsenios H. • Physics tutor

1986 Views