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A 70 kg meteorite buries itself 5.5m into soft mud. The force between the meteorite and the mud is given by F(x) = (680 N/m^3)x^3, where x is the depth in the mud. What was the speed of the meteorit
In reality, the angular speed of a baggage carousel does not change. Therefore, what must be the external torque acting on the system if ten bags are dropped each minute?
An incompressible fluid flows steadily through a pipe that has a change in diameter. The fluid speed at a location where the pipe diameter is 8 cm is 1.28 m/s. What is the fluid speed at a location
A 2216 kg pile driver is used to drive a steel beam into the ground. The pile driver falls 5.3 m before contacting the beam, and it drives the beam 20 cm into the ground before coming to rest. Usin
Two speakers, one directly behind the other, are each generating a 376-Hz sound wave. What is the smallest separation distance between the speakers that will produce destructive interference at a li
A 65.0 kg base runner begins his slide into second base when he is moving at a speed of 4.5 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is ze
A soccer ball of diameter 29.0 cm rolls without slipping at a linear speed of 3.30m/s. Through how many revolutions has the soccer ball turned as it moves a linear distance of 15.0 m?
Calculate the radial power (in W) from a sphere with a radius 5.00 cm at the temperature 355 K?
The distance from earth to the center of our galaxy is about 24000 ly (1 ly = 1 light-year = 9.47 1015 m), as measured by an earth-based observer. A spaceship is to make this journey at a speed of 0
A spherical Christmas tree ornament is 5.96 cm in diameter. What is the magnification of the image of an object placed 8.6 cm away from the ornament?
An object that has a weight in air of .675N. Its apparent weight when completely submerged in water is .464N. What is the buoyant force acting on the object?
A rubber ball is shot straight up from the ground with speed v_0. Simultaneously, a second rubber ball at height h directly above the first ball is dropped from rest. At what height above the ground
If the ball is released from rest at a height of 0.67 above the bottom of the track on the no-slip side, what is its angular speed when it is on the frictionless side of the track? Assume the ball
What is the acceleration of the lighter block? Suppose that the heavier block is removed, and a downward force of 908 N is provided by someone pulling on the rope
A sledge loaded with bricks has a total mass of 17.8 kg and is pulled at constant speed by a rope inclined at 20.4° above the horizontal. The sledge moves a distance of 20.7 m on a horizontal su
Calculate the potential energy of an alpha particle(z=2,A=4)Just touching a gold nucleus(z=79,A=197)
A sledge loaded with bricks has a total mass of 19.0 kg and is pulled at constant speed by a rope. The rope is inclined at 20.3° above the horizontal, and the sledge moves a distance of 20.3 m o
Calculate the heat flow through a 0.750m long copper bar with a cross sectional area of 0.50 cm2. One end at 2.0 degrees Celsius and the other end at 101.0 degrees Celsius.
The ball of mass mb is thrown at the suspended block of mass mB with velocity vb. If the coefficient of restitution between the ball and the block is e, determine the maximum height h to which the b
What will the traveler weigh on another planet whose radius is three times that of earth and whose mass is twice that of earth? 27. ssm Mars has a mass of 6.46 10 23 kg and a radius of 3.39 10 6 m.
A major-league catcher gloves a 85 mi/h pitch and brings it to rest in 0.17 m. If the force exerted by the catcher is 803 N, what is the mass of the ball?
An identical rocket is fired with the bottle lying on its side, pointing horizontally. In which case does the rocket leave the bottle with the greater acceleration?
A mountain climber jumps a 3.2 m-wide crevasse by leaping horizontally with a speed of 7.1 m/s. If the climber's direction of motion on landing is -45^circ, what is the height difference between the
A skier of mass 70 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 60 m up a 30 degree slope (assumed frictionless) at a constant speed of 2.0 m/s? (b) Wha
You are driving your car (mass m) at a constant speed v around a banked curve of radius R and bank angle Which of the following forces should be included in a free-body diagram for the car?