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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. What is the speed of the Dodge the instant after the collision, assuming the collision is perfectly inelastic? Suppose now that the Dodge instead had a mass of 1413 kg (but the same speed as before). Calculate its final speed the moment after the collision, again assuming a perfectly inelastic collision.
A platform moves up and down in SHM, with amplitude 0.050 m. Resting on top of the platform is a block of wood. What is the shortest period of motion for the platform so that the block will remain in constant contact with it?
A concave shaving mirror has a focal length of 95 cm. find the image position of a cologne bottle placed in front of the mirror at a distance of 165cm. Calculate the magnification of the image. Is the image real or virtual? Is the image inverted o..
A man drags a 74.0-kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. Find the magnitude of the tension in the strap
A camera's flash uses the energy stored in a 260?F capacitor charged to 190V . The current in the charging circuit is not to exceed 21mA, What's the resistance in the charging circuit
What is the kinetic energy of a ball of mass 16.1 kg at the apex (highest point) of its trajectory, if it is thrown with an initial speed of 45 mph and an initial angle of 42.8 o with respect to the horizontal?
What woud happen if a person would dropp an object from a ships mast with no wind blowing and the ship moving forward. Where will the object fall and why
q1. a cube of ice is taken from the freezer at -9.4degc and placed in a 94 g aluminium calorimeter filled with 315 g of
In a series RCL circuit the generator is set to a frequency that is not the resonant frequency. What is the frequency of the generator
A circular coil 19.0cm in diameter and containing nine loops lies flat on the ground. Determine the torque on the coil. Express your answer using three significant figures and include the appropriate units
You were driving a car with velocity ‹ 19, 0, 11 › m/s. You quickly turned and braked, and your velocity became ‹ 13, 0, 15 › m/s. The mass of the car was 1200 kg. What was the (vector) change in momentum
The focal length of a relaxed human eye is approximately 1.71 cm, Calculate the focal length of the eye when we focus closely
The two 10-cm-long parallel wires are divided by 5.0 mm. For what value of the resistor will the force between the two wires be 1.08×10-4 N.
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