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A crate of mass 10.2 kg is pulled up a rough incline with an initial speed of 1.52 m/s. The pulling force is 106 N parallel to the incline, which makes an angle of 20.8° with the horizontal. The coefficient of kinetic friction is 0.400, and the crate is pulled 4.96 m. What is the change in kinetic energy of the crate?
An air-filled pipe is found to have successive harmonics at 1050Hz , 1350Hz , and 1650Hz, It is an open-closed pipe, so What is the length of the pipe
The length of a simple pendulum is 0.86 m and the mass of the particle (the "bob") at the end of the cable is 0.33 kg. The pendulum is pulled away from its equilibrium position by an angle of 9.0 ° and released from rest.
A 5 g bullet with speed of 400m/s gets stuck in a 1 kg wooden block (originally not moving). Classify the collision. (b) Find the new speed of block+bullet. (c) Find the amount of kinetic energy lost. Where does it go?
A firm wants to determine the amount of frictional torque in their current line of grindstones, find the frictional torque exerted on the grindstone
What is the approximate mass of the cat.
As a highway engineer, you're asked to design a runaway truck lane on a mountain road. How long should you make the lane
a copper puece of mass 140g and of temperature 240 degree is placed into 360g of water at temperature 25 degree. Find the final equilibruim temperature
A container holds 0.60g of argon at a pressure of 9.0atm. Part A; How much heat is required to increase the temperature by 100degrees celsius at constant volume.
The critical angle of a certain piece of plastic in air is ?c = 37.3º, what is the critical angle if the piece of plastic is immersed in water
A positive charge +q1 is located to the left of a negative charge -q2. On a line passing though the two charges, What is the distance between the charges
An Olympic basketball player shoots towards a basket that is 5.36m horizontally from her and 3.05m above the floor. The ball leaves her hand 1.83m above the floor at an angle of 45.0o above the horizontal. What initial speed must she give the ball so..
A uniform circular plate of radius 15 cm has a circular hole of radius 3 cm cut out of it. If the mass per unit area of material is 5 g/cm2, what is the mass of this object
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