Questions from College Physics

Q: How much energy is released in the fusion reaction 2H + 3H

How much energy is released in the fusion reaction 2H + 3H - 4He + n?

Q: A ray of light passes from air through dense flint glass and

A ray of light passes from air through dense flint glass and then back into air. The angle of incidence on the first glass surface is 60.0°. The thickness of the glass is 5.00 mm; its front and back s...

Q: A circus performer is shot out of a cannon and flies over

A circus performer is shot out of a cannon and flies over a vertical net that is placed at a horizontal distance of 6.0 m from the cannon. When the cannon is aimed at an angle of 40° above the horizon...

Q: Show that the deviation angle δ for a ray striking a thin

Show that the deviation angle δ for a ray striking a thin converging lens at a distance d from the principal axis is given by δ = d/f. Therefore, a ray is bent through an ang...

Q: A cannonball is catapulted toward a castle. The cannonball's velocity when

A cannonball is catapulted toward a castle. The cannonball's velocity when it leaves the catapult is 40 m/s at an angle of 37° with respect to the horizontal, and the cannonball is 7.0 m above the gro...

Q: A diamond in air is illuminated with white light. On one

A diamond in air is illuminated with white light. On one particular facet, the angle of incidence is 26.00°. Inside the diamond, red light (λ = 660.0 nm in vacuum) is refracted at 10.48° with respect...

Q: A 1200 kg airplane starts from rest and, with a constant

A 1200 kg airplane starts from rest and, with a constant acceleration of magnitude 5.0 m/s2, reaches its takeoff speed in 9.00 s. (a) What is the magnitude of the net force on the airplane during thi...

Q: (a) Sunlight reflected from the smooth ice surface of a

(a) Sunlight reflected from the smooth ice surface of a frozen lake is totally polarized when the incident light is at what angle with respect to the horizontal? (b) In what direction is the reflecte...

Q: A police officer is investigating the scene of an accident where two

A police officer is investigating the scene of an accident where two cars collided at an intersection. One car with a mass of 1100 kg moving west had collided with a 1300 kg car moving north. The two...

Q: An automobile is traveling along a straight road to the southeast at

An automobile is traveling along a straight road to the southeast at 24 m/s when the driver sees a deer begin to cross the road ahead of her. She steps on the brake and brings the car to a complete st...