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A 20.0 kg dog is running northward at 2.00 m/s, while a 5.00 kg cat is running eastward at 2.64 m/s. Their 70.0 kg owner has the same momentum as the two pets taken together. What is the direction and magnitude of the owner's velocity?
At the top of a cliff 100m high, Raoul throws a rock at a 30 degree angle with velocity 15.0 m/s. how far away from the bottom of the cliff should the first rock land
You have landed on an unknown planet, Newtonia, and want to know what objects will weigh there. You find that when a certain tool is pushed on a frictionless horizontal surface by a 12.6 force, What would it weigh on earth
A 50 kg bag of sand at 25 C falls 10 m onto the pavement and comes to an abrupt Stop. What is the change in internal energy in the sand
A rubber ball of mass 39.0 g is dropped from a height of 1.80 m onto a floor. find impulse was applied to the ball during the collision
A motor boat haeds due east at 5 m/s acorss a river that flows toward the south at 5 m/s. If the river is 125m wide, how longs does it take the boat to cross the river.
question1an 8.0 meter uniform ladder of weight 355 n leans next to a smooth vertical wall at an angle 50 degrees with
An object is placed to the left of a convex lens and on the optical axis. evaluate the magnification of the image formed by the lens
Suppose you consume 2000 Cal of food per day. Note that a food Calorie, with capital C, is one kilocalorie: 1 Cal = 1 kcal. How many watts of heat and work can you do
In the figure set V = 0 at infinity and let the particles have charges q1 = +q = -5.40×10-5 C and q2 = -6q. They are seperated by d = 30 cm, What is the positive position
a flat sheet ofcrown glasshas a thickness of 2.2cm. it is on top of a flat sheet of crystalline quartz that has a
In a time of T seconds, a motorcycle can accelerate from rest to the speed v. Determine the speed of the motorcycle (in terms of v) 2T after starting
A 65 kg skateboarder comes over the top of a hill at 5.0 m/s and reaches 10 m/s at the bottom. Find the total work done on the skateboarder
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