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An object is placed directly between a large planet and a star. Find the distance from the planet for which the net gravitational force exerted by the planet and by the star on this object is zero. DATA: Mstar= 1.90E+30 kg, Mplanet= 8.90E+25 kg, Dplanet?to?star= 1.50E+11; m.
The figure below shows a wire ring of radius a = 2.0 cm that is perpendicular to the general direction of a radially symmetric, diverging magnetic field. The magnetic field at the ring is everywhere of the same magnitude B = 3.4 mT, and its direct..
Car A uses tires for which the coefficient of static friction is 1.1 on a particular unbanked curve. The maximum speed at which the car can negotiate this curve is 25 m/s. Car B uses tires for which the coefficient of static friction is 0.65 on the s..
Can you have angular velocity if an object does not move linearly? Explain. Can you have angular velocity if an object is moving linearly? Explain
A group of swimmers is resting in the sun on an off-shore raft. How fast are the waves moving
A conducting spherical shell of radius Ri has a net charge Q on it. Using Gauss's law, find the electric field between the two shells
question1a 150 30.0-cm-diameter turntable rotates on frictionless bearings at 61.0. a 17.0 block sits at the center of
During a particular car crash, it takes just 0.18s for the car to come to a complete stop from 50 km h -1. At what rate is the car accelerating during the crash
A thin cable 2m long with a mass of 100g is fixed at both ends. Its tension is 20N. What is the frequency of this mode of vibration
q1. determine the tension in each cable if boat has a mass of 490 kg and the angle of each cable is 50 degrees from the
A small 12.3g plastic ball is tied to a very light 26.6cm string that is attached to the vertical wall of a room. A uniform horizontal electric field exists in this room. Find the magnitude of the electric field in the room
Charge B exerts a repulsive force (directly away from B) on charge A of 4.5N. Find the magnitude of the net force on charge A
A loudspeaker is placed between two observers who are 120 m apart, along line connecting them. If one observer records a sound level of 52.8 dB and the other records a sound level of 83.5 dB, how far is the speaker from each observer? Enter the longe..
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