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A physics student propses to pull their car out of a mudhole on a country road by stretching a rope between the front of the car and an immovable object in front of the car, and then push sideways at the midpoint of the rope. Suppose that the rope is 50 meters long, and that a sideways force of 300 N is required to displace the midpoint sideways 5 m. Determine the tension in the rope and the forward component of the force on the car.
A 10-cm length of wire carries a current of 3.0 A. What is the magnitude and direction of the force on this segment of wire
Scenario: You and a friend, who is twice your size, decide to slide down identical water slides at the same time, Who will have the greater momentum at the bottom
Two protons are located on the x-axis at 1.0m and on the y-axis at 1.5m. Determine the electric potential energy of a third proton located at the origin
The pendulum is now swinging on Pluto. Calculate the new period of oscillation in terms of T, knowing that on Pluto the gravity is 1/16 of gravity on the Earth
After 2.02 days, the activity of a sample of an unknown type radioactive material has decreased to 88.2% of the initial activity. What is the half-life of this material
Two point charges Q1 = +5.25 nC and Q2 = ?2.15 nC are separated by 40.0 cm, What is the electric potential at a point midway between the charges
two horizontal forces f1 and f2 are acting on a box. f2 can point either to the right or to the left. the box moves
A 4.3 kg mass with an initial velocity of v1 =aˆi, where a = 2.94 m/s collides with and sticks to a 3.05 kg mass with an initial velocity of v1 = bˆj, where b = ?4.8 m/s
car A is moving east at a speed of 40mps relative to the ground. car B is moving west at 50mph relative to the ground. what is the relative velocity (speed and direction) of car B
The upward normal force exerted by the floor is 610 N on an elevator passenger who weighs 660 N. What is the reaction force to weight of the passenger
A 2.30 cm diameter tungsten sphere is heated to a temperature of 2000 degree C. At this temperature tungsten radiates only 30% of the energy radiated by a blackbody of the same size and temperature.
A satellite is in a circular orbit around the Earth at an altitude of 3.38 106 m. Find the acceleration of the satellite
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