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A dish with a mass of 0.4 Kg has a force of Kinetic friction of 0.15 N exerted on it by a moving tablecloth for a time of 0.2 sec
(a) What velocity does it reach in this time, starting form rest?
(b) how far (in cm) does the dish move in this time?
A heat pump is found to remove 2400 J of heat from the exterior of a house and deliver 3500 J of heat to the interior of the house
The half-life of a particular atom is 4.56 minutes. Determine the ratio of material left to the original amount after: 6.50 minutes, 12.8 minutes. What is the decay constant and mean lifetime for this material?
Two objects each have a positive charge. The total charge on both objects is 390 µC. When the objects are placed a distance of 1.20 m apart, each exerts an electrostatic force of 21.3 N on the other. What is the charge on each object? (Round the a..
A 58-kg astronaut is in space, far from any objects that would exert a significant gravitational force on him. He would like to move toward his spaceship, How fast is the astronaut moving after he throws the mallet
A box is pulled along the floor with a rope. The tension in the rope is 120 N and the rope makes an angle of 50 degree with respect to the ground. Determine the velocity of the box
find an expression for the oscillation frequency of an electric dipole of dipole moment p and rotational inertia i for
When a glass rod is rubbed with silk it (the rod) becomes positively charged. When two objects are rubbed together, which particle is most probable to be transferred? If the charge on each of two small spheres a fixed distance apart is halved, the fo..
70 grams of water at 85°C are mixed with an equal amount of water at 15°C in a completely insulated container. How much heat is gained by the cold water
Light in air enters a diamond (n= 2.42) at an angle of incidence of 48 degrees. What is the angle of refraction inside the diamond
State the maximum height in terms of a, t_1, and/or g. Note that in this problem, g is a positive number equal to the magnitude of the acceleration due to gravity.
Two vehicles approach an intersection at right angles and collide. If vehicle 2 has a mass of 600 kg, vehicle 1 has a mass of 300 kg, and they were both traveling at 13 m/s before the collision, what is the magnitude and direction of the final veloci..
A coil has 2.75-Ω resistance and 106-mH inductance. If the current is 2.90A and is increasing at a rate of 3.80 A/s, What is the potential difference across the coil at this moment
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