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You are trying to tilt a very tall refrigerator (2.0 m high, 1.0 m deep, 1.4 m wide, and 140 kg) so that your friend can put a blanket underneath to slide it out of the kitchen. Determine the force that you need to exert on the front of the refrigerator at the start of its tipping. You push horizontally 1.5 m above the floor.
Find the linear momentum and kinetic energy of a bullet of mass 4.60 10-2 kg moving at a speed of 320 m/s
The velocity of an airplane with respect to the ground is 2.00 x 102 m/s at an angle of 30.0 degrees NORTH of EAST. What is the velocity of the air with respect to the ground
A 0.958 kg block of copper initially at 30.0oC, is dropped into an insulated container with a large quantity of liquid nitrogen. What is the mass of the nitrogen that boils away
A quarterback throws a football toward a receiver with an initial speed of 21 m/s at an angle of 30° above the horizontal. With what constant speed should the receiver run
The system shown below has frictionless pulleys and the string have negligible mass. what is the speed of the objects when they are at the same height
Establish the initial volume of the gas . What is the magnitude of normal force that each brake pad applies to the rim.
Density of Aluminium is 2.7g/cm3 or 2.7g/ml. How heavy (in grams) would be the coke can if instead of soda it would be filled in with aluminium? The volume of a soda can is 303 ml.
Velma passes Mort at a speed of 0.75c. At this speed, the "time dilation factor" is 1.5. In other words, Mort observes a 1-second tick of Velma's clock to take 1.5seconds. assume that they are born at the same time, and that Mort observes himself ..
The electricity supplied through a city power line is transmitted at 14,300 V. On each city block there are one or more neighborhood transformers on utility poles that transform the potential difference to 120 V, as used in homes and businesses (2..
What is the value of the force?
A proton accelerates from rest in a uniform electric field of 620 N/C. At some later time, its speed is 1.16 106 m/s. what is the magnitude of acceleration of the proton
A 220 g bird flying along at 6.69 m/s sees a 8.2 g insect heading straight toward it with a speed of 22.66 m/s. What is the bird's speed immediately after swallowing
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