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A physics student on Planet Exidor throws a ball, and it follows the parabolic trajectory shown in the figure. The ball's position is shown at 1.0 s intervals until t = 3.0 s. At t = 1.0 s, the ball's velocity has components vx = 2.0 m/s, vy = 2.0 m/s.
a. Determine the x- and y- components of the ball's velocity at t = 0.0 s, 2.0 s, and 3.0 s.
b. What is the value of g on Planet Exidor?
c. What was the ball's launch angle?
Copper has 8.5×1028 electrons per cubic meter. How many electrons are there in a 25.0 cm length of 12-gauge copper wire, what is the average drift speed of the electrons along the wire
What other social and religious impacts is Fontanelle mentioning?
A train starts at rest at a station and accelerates at a rate of 2.0 m/s^2 for 20 seconds. Then, this train runs at a constant speed for 100 seconds and slows down at a rate of 5.0 m/s^s until it stops at the next station. compute the total distan..
A tennis ball connected to a string is spun around in a vertical, circular path at a uniform speed, What is the magnitude of the tension in the string when the ball is at the bottom of the circle
With what minimum speed must you toss a 160 g ball straight up to hit the 10 m high roof of the gymnasium if you release the ball 1.60m above the ground? Solve this problem using energy.
Given that the goal is to allow all vehicles to come safely to a stop before reaching the intersection, calculate the maximum desired speed limit
Imagine that the coefficient of kinetic friction between a certain 15kg box and the floor is 0.35. How hard would you have to push on it to move it at the constant speed of 2.6m/s across the floor.
The potential at the center of a uniformly charged ring is 52 kV, and 15 cm together the ring axis the potential is 41 kV. Find the ring's radius and its total charge.
A 29.0-g object moving to the right at 19.0 cm/s overtakes and collides elastically with a 9.0-g object moving in the same direction at 15.0 cm/s. Find the velocity of each object after the collision
From the top of a 40.0m high cliff, two rocks are simultaneously thrown. One is thrown upwards at 20.0m/s, the other is thrown downwards at 8.0 m/s. How far apart are the two rocks after 1.5 seconds?
Two blocks are connected by a cord passing over a small (frictionless) pulley as shown below. The angle ? = 30 degrees, what is the mass, M, of the large block
A 13000 kg railroad car travels alone on a level frictionless track with a constant speed of 17 m/s. A 6500 kg load, originally at rest, is dropped onto the car. What will be the car's new speed.
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