An -particle has a charge of +2e and a mass of 6.64 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.36 106 V and then enters a uniform magnetic field whose magnitude is 2.00 T. The -particle moves perpendicular to the magnetic field at all times. Required:
a. What is the speed of the a-particle?
b. What is the magnitude of the force on it?
c. What is the radius of its circular path?

According to newton’s first law of motion, which force is expected to cause a body to accelerate?

Which law represents the thermodynamic statement of the conservation of energy of a system? a. the fourth law b. the first law c. the second law d. the third law

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s