Calculate the kinetic energy of a proton moving at 95% of the speed of light. (c = 3x10^8 m/s, m_p = 1.67x10^-27 kg) [4 marks]

KE = 0.5mv2 [1] v = 3x108 * 0.95 = 2.85x108 [1] KE = 0.5 * 1.67x10-27 * (2.85x108)2  [1] KE = 6.782 x10-11 J [1]

TF

Related Physics A Level answers

All answers ▸

How do stars form?


The Heisenberg Uncertainty principle states that ΔxΔp > h/4π. What is represented by the terms Δx, and Δp? What can we say about p if the precise value of x is known? What does this mean for experimental results.


Explain how an acceleration-displacement graph could be used to determine the frequency of oscillation of a metal plate.


How does a capacitor work and how do I treat it in a circuit?