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Q1. What is the magnitude of an object's average velocity if an object moves from a point with coordinates x = 2.54 m, y = -3.56 m to a point with coordinates x = 7.85 m, y = -6.54 m in a time interval of 2.02 s?
Q2. The velocity of a particle moving along the x axis is given for t > 0 by vx = (32.0t - 2.00t3) m/s, where t is in s. What is the acceleration of the particle when (after t = 0) it achieves its maximum displacement in the positive x direction?
Find the rotational frequency of the wheel.
A 2.30-kg object is attached to a spring and placed on frictionless, horizontal surface. Find the maximum acceleration of the object
David is driving a steady 26 when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.8 at instant when David passes.
A railroad car of mass 2.4 104 kg moving at 4.00 m/s collides and couples with two coupled railroad cars, How much kinetic energy is lost in the collision
The velocity of light in glass is 2*10^8 m/s and in air is 3*10^8 m/s. How much would be an ink dot to be raised, when covered by a glass plate of 6cm thick
A sound pulse has a power of 948.5 watts. find the intensity of the sound at the time of observation
A bullet is shot out of a gun with a 61 cm barrel at a speed of 410 m/s into a block of wood. The bullet enters the wood 13 cm. Illustrate what force does the block exert on the bullet? What is the time it takes?
q1. in a crash test a 1300 kg car slams into a concrete wall at 18.8 ms and comes to rest in 0.275 s. a find the
An oil drop carries one excess electron and weighs 9.2 10-15 N. What electric field strength is necessary to suspend drop so it is motionless.
Consider two closely spaced and oppositely charged parallel metal plates. The plates are square with sides of length L and carry charges Q and -Q on their facing surfaces. What is the magnitude of the electric field in the region between the plate..
A 10.0kg stone slides down a snow-covered hill (the figure (Figure 1) ), leaving point A with a speed of 10.0m/s. How far will the stone compress the spring
The two stars in a certain binary star system move in circular orbits. The first star, Alpha, has an orbital speed of 36.0km/s. The second star, Beta, What is the mass of the star Beta and alpha
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