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A bomb of mass 34kg, at rest is detonated. The explosion splits the bomb into two pieces, one of mass 13kg, which is thrown to the left at a velocity of 28 m/s. What is the velocity of the second piece?

In a collision where no external forces act linear momentum is conserved.Convention: Right + left -0=-13x28 + 21xVV=17.33 kg m/s to the right

Answered by Rory C. • Physics tutor

1276 Views

What are the differences between standing waves and progressive waves?

Energy is not transferred in a standing waves whereas in progressive waves energy is transferred in the direction the wave is travelling in.In standing waves, nodes and antinodes exist which are the point...

Answered by Zimeng W. • Physics tutor

12271 Views

What is the root mean square voltage of an alternating current?

Since the voltage of alternating current, by definition, changes over time, it is helpful for physics to describe it using a sinusoidal curve. In this case, the amplitude of that sine curve becomes is wh...

Answered by Mate B. • Physics tutor

1739 Views

Describe the principles of fission and fusion. With reference to the nuclear binding energy curve, explain how energy is released.

Fission is the process by which heavier unstable elements split into smaller fragments, and releases energy for elements further to the right on the BE curve than iron. The fission fragments are further t...

Answered by Shane D. • Physics tutor

2461 Views

How does light from distant stars show how fast they are moving away from us.

When an ambulance drives away from you it has a lower pitch than when it is stationary. The faster the ambulance drives away from you the lower the pitch of it's siren will be. This is called the Doppler ...

Answered by Nicholas R. • Physics tutor

1545 Views