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Question: Using a force of 28.0 Newtons, a student pulls a 70.0 Newton weight along the table top for a distance of 15.0 meters in 3.0 seconds. Compute the power developed by the student.
A block of mass m1 = 3.27 kg on a frictionless plane inclined at angle? = 31.2° is connected by a cord over a mass less, frictionless pulley to a second block of mass m2 = 2.38 kg hanging vertically (see the figure). (a) What is the acceleration of t..
The center of mass of a system consisting of two spheres is moving in the +x direction with a speed of 6.6 m/s. What is the total momentum of the system
a football quarterback throws a pass at an angle of 38.6deg. he releases the pass 3.50 m behind the line of scrimmage.
A child in a boat throws a 5.600 kg package out horizontally with a speed of 11.00 m/s. Determine the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is 23.00 kg and that of the boat is 45.00 kg.
A small droplet of oil with mass of 2.42e-15 kilogram is held suspended in a region of uniform electric field directed upward with a magnitude of 8725 N/C. Compute how many excess elementary charges reside on droplet
When a 0.121 kg mass is suspended at rest from a certain spring, the spring stretches 4.10 cm. Find the instantaneous acceleration of the mass
Two cars start racing from rest. The track is 400 meters long and linear. Car A accelerates at 3.4m/s2 and Car B accelerates at 3.0m/s2. What is Car A's speed when it crosses the finish line
A 9.10 kg board is wedged into a corner and held by a spring at a 50° angle, as the Illustrating shows. The spring has a spring constant of 196 N/m and is parallel to the floor.
You are driving home from school steadily at 94 km/h for 150 km. It then begins to rain and you slow to 63 km/h. You arrive home after driving 3 hours and 30 minutes. How far your hometown from school and what is was your average speed.
the speed of an automobile traveling due to east is uniformaly reduced from 75.0km to 45.7kmh in a distance of 88.5m.a
A ballplayer catches a ball 3.3s after throwing it vertically upward. With what speed did he throw it, and what height did it reach
A stone with a weight of 5.26 Newton is launched vertically from ground level with an initial speed of 24.0 m/s, Determine the maximum height reached by the stone
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