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An experiment is performed in deep space with two uniform spheres, one with mass 30.0 kg and the other with mass 106.0 kg. They have equal radii, r = 0.35m . The spheres are released from rest with their centers a distance 36.0m apart. They accelerate toward each other because of their mutual gravitational attraction. You can ignore all gravitational forces other than that between the two spheres. When their centers are a distance 29.0 m apart, find the speed of the 30.0kg sphere. Find the speed of the sphere with mass 106.0kg . Find the magnitude of the relative velocity with which one sphere is approaching to the other. How far from the initial position of the center of the 30.0kg sphere do the surfaces of the two spheres collide?
A Dodge car of mass 1103 kg traveling to the right at 22.40 m/s collides head-on with a Ford of mass 1258 kg traveling at the same speed but in the opposite direction. Calculate its final speed the moment after the collision
q1. a vaulter holds a 31.67-n pole in equilibrium by exerting an upward force u with her leading hand and a downward
A sample contains 3.5Ã-1019 radioactive atoms with a half life of 10000 years. How many atoms are expected to decay in the first second
Two metal spheres, each of radius 1.0 cm, have a center-to-center separation of 2.0 m. Sphere 1 has charge +2.90 10-8 C. Calculate the potential at the point halfway between the centers
A curling stone with a mass of 7.00 kg moves across the ice at a speed of 1.35 m/s in the positive x direction. What is the initial kinetic energy
When any radioactive dating method is used, experimental error in the measurement of the sample's activity leads to error in the estimated age. find the age of the fossils
A 475 kg concrete beam should be raised by a 10.0 m from the ground. How much power is needed to do the job in 24 s
A block of mass m = 2 kg is pushed against a spring of spring constant k = 30 N/m until the spring is compressed by x = 0.1 m. What is the maximum speed of the block
An electron and proton are separated by 2.0 nm. What is the net force on the system
Two capacitors (C1 = 7.9 uF, C2 = 15.7 uF) are charged individually to (V1 = 15.7 V, V2 = 4.5 V). Calculate the final potential difference across the plates of the capacitors once they are connected
A man is pushing a heavy box across the floor. The box weighs 95 lbs. The man is pushing forward on it with a force of 56 lbs. What is the resultant horizontal force on the box
To pump out a subway, a pump is used that can increase the absolute pressureon the pool of water at the bottom of yhe subway to 400 kpa. what is the flow velocity at street level
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