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A ball is released from rest and rolls down an incline plane, requiring 4 sec to cover a distance of 100cm down the plane, Wat was its acceleration? and How far did it travel vertically while rolling down the olane?
a 45.7 kg girl is standing on a plank that has a mass of 152 kg. the plank originally at rest is free to slide on a
A sailor drops a wrench from the top of a sailboat's vertical mast while the boat is moving rapidly and steadily straight forward. Where will the wrench hit the deck
A plane is flying southeast at 200 km/h. Suddenly, it encounters wind heading 40 degrees north of east at 35 km/h. What is the planes new velocity
If the car in problem 1 traveled at 36.0km/h during the first part of the trip and at 90.0km/h during the remainder, Calculate the average velocity for each part of the trip
sound exits a diffraction horn loudspeaker through a rectangular opening like a small doorway. a person is sitting at
A vertical spring (spring constant =120 N/m) is mounted on the floor. Determine the amplitude at which the block will lose contact with the spring
a charge of -3.89c is fixed at the center of a compass. two additional charges are fixed on the circle of the compass
A Carnot cycle uses a cold reservoir at 280 K. In each cycle, 2500 J of heat is supplied and 1200 J of work is done. What is the temperature of the hot reservoir
A object-spring system oscillates with an amplitude of 2.8 cm. If the spring constant is 205 N/m and object has a mass of 0.50 kg, evaluate the maximum acceleration of the object
question an arctic weather balloon is filled with 10.2l of helium gas inside a prep shed. the temperature inside the
A point mass of m1 = 2.3 kg is placed at the origin. Masses m2 = 5.4 kg and m3 = 7.6 kg are placed at 3.5 m and -5.8 m on the x-axis, respectively. Find out the location on the x-axis of the center of mass.
The Earth's nearly circular orbit around the sun has a diameter of 300 million km. Assuming it takes 365 days for the Earth to make one complete trip around the sun, find the acceleration of the Earth toward the sun.
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