Q1. A proton travels with the speed of 8.34×105 m/s at an angle of 32.3° with the direction of a magnetic field. The field exerts a force of 3.00×10-17 N on the proton. What is the strength of the field?
Q2. A skateboarder shoots off a ramp with the velocity of 5.6 m/s, directed at an angle of 64° above the horizontal. The end of the ramp is 1.5 m above the ground. Let the x axis be parallel to ground, +y direction be vertically upward, and take as the origin the point on the ground directly below the top of the ramp. (a) How high above the ground is the highest point that skateboarder reaches? (b) When the skateboarder reaches the highest point, how far is this point horizontally from the end of ramp?