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A dock worker applies a constant horizontal force of 80.5 N to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves 8.00 M in the first 4.00 S
Part A What is the mass of the block of ice?
A 1590 kg satellite orbits the Earth at an altitude of 50.4 km. It is desired to increase the altitude of the orbit to 298 km, How much energy must be added to the system to effect this change in alti- tude
A rocket is fired straight upp from the ground with a 2.25 m/s acceleration. what is the speed of the rocked when the engines stop
A 25-g rifle bullet travelling 280-m/s buries itself in a 3.6-kg pendulum hanging on a 2.8m long string, which makes the pendulum swing upward in an arc. Find out the vertical and horizontal components of pendulum's displacement.
A car travelling at 25.0 {rm m/s} runs out of gas while travelling up a 22.0^circ slope. How far will the car go up the hill before it runs out of gas.
A boat with speed of 10m/s, in still water, tries to cross a river with a current flow of 2.0m/s, and is 100m wide. how far down river does it land
4 Skater A, mass 55.0 kg, moving at 14.0 m/s bumps into stationary Skater B, mass 65.0 kg. What are the final speeds of the two skaters
Consider a neutron star whose mass is twice the mass of the Sun and whose radius is 14.1 km. What is the radius of the geostationary orbit for this neutron star
A coin 2.3 cm in diameter is held 37 cm from a concave spherical mirror of 40 cm radius of curvature. Locate the image of the coin
While the positions of these balls are fixed, ground the ball X and then break the grounding. when X and Y remain in touch, remove Z. Then divide X and Y. What are the charges (if any) on each of the balls.
A vector A has a magnitude of 52.6 m and points in a direction 19.4° below the positive x axis. calculate the magnitude of the vector C
A motorcycle accelerates uniformly from rest and reaches a linear speed of 20.4 m/s in a time of 8.91 s. What is the magnitude of the angular acceleration of each tire
A ball is shot from the top of a building with an initial velocity of 20m/s at an angle ? = 42? above the horizontal. What are the x and y components of the initial velocity
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