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The position of a particle as it moves along a y axis is given by y = (2.0 cm) sin (?t/4), with t in seconds and y in centimeters. (12 points)
What is the average velocity of the particle between t = 0 and t = 2.0 s?
What is the instantaneous velocity of the particle at t = 0, 1.0, and 2.0 s?
What is the instantaneous acceleration of the particle at t = 0, 1.0, and 2.0 s?
A novice skier, starting from rest, slides down a frictionless 41.0 incline whose vertical height is 230.How fast is she going when she reaches the bottom.
What is the terminal speed for an 79 skier going down a 36 snow-covered slope on wooden skis = 0.060? Assume that the skier is 1.8 m tall and 0.50 m wide.
What is the minimal mass of helium (density 0.18) needed to lift a balloon carrying two people in a basket, if the total mass of people, basket, and balloon (but not gas) is 320.
What is the pressure at the bottom of a swimming pool which is 12ft deep and contains fresh water.
What are changes in the object's momentum and velocity. How much work is done if the similar tension is directed parallel to the snow.
Immediately before the collision, the linebacker is slipping with a velocity of 8.6 m/s north and the halfback is sliding with a velocity of 7.4 m/s east. Illustrate what is the magnitude of the velocity at which the two players move together imm..
A box is put on a slide to move it from one part of a factory to another the slide is at an angle of 20 degrees below the horizontal the coefficient of friction between the box and slide is 0.352 what is the acceleration of the box.
A hot-air balloon is ascending at the rate of 12 m/s and is 84 m above the ground when a package is dropped over the side. Explain how long does the package take to reach the ground?
You travel from "point" Columbia to St. Louis in a car moving at a constant speed of 60 km/h. Then you travel back from St. Louis to Columbia the same distance moving at a constant speed of 120 km/h.
Charge Q+ is located d units along y axis in positive direction north of O, What is magnitude of electric field at the origin O
A parallel-plate capacitor has plates of area A and separation d and is charged to a potential difference, find The inital and final stored energy
A manager of a restaurant pushes horizontally with a force of magnitude 150 N on a box of melons. The box moves across the floor with a constant acceleration in the same direction as the applied force.
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