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A 22 particle is moving to the left at 26m/s. How much net work must be done on the particle to cause it to move to the right at 51m/s?
A 105-kg horizontal platform is a uniform disk of radius 1.77 m and can rotate about the vertical axis through its center. Find the moment of inertia of this system
An Olympic long jumper leaves the ground at an angle of 19.8 ° and travels through the air for a horizontal distance of 8.17 m before landing. What is the takeoff speed of the jumper
The combined mass of the professor and the chair is 90-kg. He is pushed 2.60-m along the incline by a group of students who together exert a constant horizontal force of 600-N. The professor speed at the bottom of the ramp is 1.75m/s. use the work..
a room measures 50x3020. the dilution volume flow rate is 3000 cfm. at 800 am the concentration of a contaminant is 50
In a friction experiment, your wooden plank is horizontal. When a mass of 100 grams is hanging on the weight hanger of mass 50 grams, a slight push makes the block move at a constant speed along the plank. If the mass of a wooden block is 500 gram..
Three electrons are aligned on a straight line and separations between them are 1.0mm. What is the electric potential energy of the center electron
An object moves with constant acceleration 4.20 m/s^2 and over a time interval reaches a final velocity of 11.8 m/s. calculate the distance it travels during this interval
A silver coin lies on the bottom of a clear lake 5.5 m deep. The coin is 4 cm in diameter. What is the angle of refraction
oe, mass MJ = 78.9 kg, is racing against Tom. When Joe and Tom have the same kinetic energy, Tom is running faster. Find Tom's mass in kg
A camera with interchangeable lenses is used to photograph a distant object. The angular size of the object is 19 degrees. What is the longest focal length lens
q1.a 1800-kg jeep travels along a straight 500-m portion of highway from a to b at a constant speed of 10 ms. at b the
A solid, frictionless cylindrical pulley with a mass of 3kg and a 0.420 m radius is used to draw water from a well. A 1.50kg bucket is attached to a cord that is wrapped around the pulley. If the bucket starts from rest at the top of the well and ..
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