he velocity of an alpha particle, He2+, with a mass of 6.64×10−27kg changes from v1=(−0.30, 0.45,0.10)c to v2=(−0.50, 0.30, −0.75)c, where c=3×108m/s. Determine the change in the particle’s kinetic energy. (In the kinetic energy formula, do not forget to square the speed of light.)

A rocket travels along a line from the Sun to Saturn at a constant speed of 0.862c relative to the Sun. The distance from the Sun to Saturn is 1.43 x 1012 m, as measured by someone at rest with respect to the Sun. How long does the journey take (in minutes) as measured by an astronaut on the rocket? (Use c = 2.9979 × 108 m/s) min

Based on a grade 11 physics student, answer the following question:The rebels are fighting the imperials on the icy planet Hoth. Han Solo didn’t dress for the weather (this ain’t Tattooine bud!), and is frozen solid (1234 kg of ice, at -123˚C ). Fortunately for Han, an AT-AT walker shoots its blasters and misses its target but hits Han which vaporizes the ice and brings him to a piping 102˚C. How much heat was added to Han Solo to turn him from a frozen chunk into a ‘Luke-warm’ rebel?

please answer a, b and c

Calculate the speed (in m/s) of an electron and a proton with a kinetic energy of 1.15 electron volt (eV). (The electron and proton masses are me = 9.11 ✕ 10−31 kg and mp = 1.67 ✕ 10−27 kg. Boltzmann's constant is kB = 1.38 ✕ 10−23 J/K.)   (a) an electron m/s (b) a proton   m/s (c) Calculate the average translational kinetic energy in eV of a 3.09 ✕ 102 K ideal gas particle. (Recall from Topic 10 that  1 2 mv2 =  3 2 kBT.)   eV

In the laboratory frame, two observers A and B are moving along the sides of an equilateral triangle with equal speeds c/2, as shown in the figure. The speed of B as measured by A will be (a) √/³ c c/2 B (b) 3√3 C Nc/2 √13 (c) (d) +

An evacuated tube uses a potential difference of ΔV = 0.38 kV to accelerate electrons, which then hit a copper plate and produce X-rays Write an expression for the non-relativistic speed of these electrons v in terms of e, ΔV, and m, assuming the electrons start from rest.  Calculate the non-relativistic speed of these electrons v in m/s.

Attached is question.

Two electrons are brought close together, to a distance of 75 pm apart. They are then both released from rest, accelerating and travelling away from one another. When the two particles are very far apart, how fast will they be going, in m/s?

A 200.0 kg rocket is launched directly upward from Earth at 9.00 km/s (rE = 6.38 x    10^6 m,mE = 5.98    x    10^24  kg, G = 6.67    x    10^-11)a) What altitude above Earth’s surface does the rocket reach? b) What is the binding energy at that altitude?