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A new electric power plant has an efficiency of 42%. For every 100 barrels of oil needed to run the turbine, how many are essentially lost as waste heat (in barrels of oil) to the environment?
Severe stresses can be produced in the joints by jogging on hard surfaces or with insufficiently padded shoes, Calculate the force on the ankle joint. The mass of the joggers leg is 8.6 kg.
Illustrate what is the frictional force acting on the disk? The disk will slide off the turntable if it is located at a radius larger than 16 cm from the axis of rotation. What is the coefficient of static friction?
On a frictionless table, a glob of clay of mass 0.24 kg strikes a bar of mass 1.34kg perpendicularly at a point 0.38m from the center of the bar and sticks to it. If the bar is 1.14 m long and the clay is moving.
How far east of his starting point will he reach the opposite bank? What is the magnitude of his velocity relative to the earth.
A car takes 9 s to go from v = 0 to v = 75 m/s at approximately constant acceleration. If you wish to find the distance travelled using the equation d = 1/2 at2, what value should you use for a.
The manometer tube has an internal diameter of 0.5 cm and it is initially filled with water. Exactly 2 cm3 of an unknown liquid is then poured into one leg of the manometer, and a displacement of 5 cm between the surfaces is measured as shown. Fin..
Find out ratio of the detector
Two carts with masses of 12.5 kg and 4.5 kg, respectively, move in opposite directions on the frictionless horizontal track with speeds of 8 m/s and 5 m/s, respectively. The carts stick together after colliding head-on. Find the final speed of the..
If unpolarized light of intensity l0 passes through an ideal polarizer, what is the intensity of the emering light
An imaginary accelerator consists of colliding beams of electrons and protons, each of 2TeV total energy. What laboratory energy would be required to achieve the same center - of - mass energy if electrons collide with stationary protons?
At a certain time a model car's speed was 24 m/s in the positive x direction, What was the average acceleration of the car during this 8.0 s interval
An electric motor with 3W of power is used to lift a .2 kg mass a height of .5 meters in 3.0 seconds
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