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A 40 kg crate is pulled across a rough horizontal surface with a force of 350 N at an angle of 25o above the horizontal. The coefficient of kinetic friction is 0.14. What is the horizontal acceleration, in m/s2, of the crate?
An air-track glider attached to a spring oscillates between the 10.0 cm mark and the 65.0 cm mark on the track. determine the maximum speed of the glider
In exercising, a weight lifter loses 0.145 kg of water through evaporation, the heat required to evaporate the water coming from the weight lifter's body. The work done in lifting weights is 1.21 x 105 J. (a) Assuming that the latent heat of vaporiza..
A particular fish tank filled with fresh water (n = 1.33) has a coral reef sticker stuck to an exterior wall, What is the index of refraction of the tank's walls
Assuming that the magnetic field of the earth has magnitude of 5x10^-5 T at the equator and is parallel to the surface of the earth and that the current in the wire flows toward east
A car is driven east for a distance of 47 km, then north for 25 km, and then in a direction 29° east of north for 29 km. find (a) magnitude (in km) of car's total displacement from its starting point and (b) the angle (from east) of the car's total..
A parallel-plate capacitor has circular plates of 9.27 cm radius and 1.79 mm separation. Calculate the capacitance in picofarads (pF)
In a conservative system how do they relate to each other? Since the subject here is work, how are work and energy related
A pair of in-phase stereo speakers is placed side by side, 2m apart. You stand directly in front of one of the speakers, 5m from the speaker. What do you hear.
Find out the minimum sound intensity
The maximum speed of the pendulum bob in a grandfather clock is 0.45 m/s. what is the length of the pendulum
Ray decides to paint the outside of his uncle's house. He uses a 4.0-m-long board supported by cables at each end to paint the second floor. find the force that the right cable exerts on the board
Given you have a 1000 kg automobile with an Otto cycle engine, compression ratio of 10. estimate the real engine losses due to friction and drag
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