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A physics student needs to loosen a large lock bolt The bolt takes 1500N-m to break free and loosen. The student has a mass of 48Kg, and she has a 0.5m breaker wrench and three sections of pipe which may be attached to the wrench. The sections extend the wrench by 1m, 2m and 3m respectively. Can she loosen the bolt? If so, how. (Ignore the mass of the wrench and the pipes)
A 1,730 KG car traveling at a rate of 166Kph is racing around a flat circular track, maintaining a perfectly circular 2 Km path What is the centripetal force acting on the car? What is the minimum coefficient of statistic friction between the tires and the track that will maintain this situation? If the tiles have a radius of 1.2m, what is the angular velocity of the tire? How many rotations do the tiles make on a single loop around the track?
a person pushes a 16.0-kg shopping cart at a constant velocity for a distance of 28.0 m. she pushes in a direction
Antwan raised a 12.0-N physics book from a table 75 cm above the floor to a shelf 2.15 m above the floor. What was the change in the potential energy of the system?
What are the advantages and disadvantages of constructive and deconstructive Interferences? Give typical examples of polarizations. Discuss musical equipments in the context of wavelengths and frequency.
A sphere of radius 1.0 cm is dropped into a glass cylinder filledwith a viscous liquid. The mass of the sphere is 12.0 g and thedensity of the liquid is 1200 kg/m3. The sphere reaches a terminalspeed of 0.15 m/s. What is the viscosity of the liquid?
A 1055 kg van, stopped at a traffic light, is hit directly in the rear by a 800 kg car traveling with a velocity of +2.00 m/s. What is the final velocity of each vehicle
question1a tabletop gamer has designed a game that requires three dice to be thrown onto a tray with a measurement
A 50.0 g copper calorimeter contains 200 g of water at 20.0°C. How much steam must be condensed into the water if the final temperature of the system
Two forces F1 and F2 are acting on a mass M=6.0 kg. The force F1 = 5.0i + 7.0j + 2.0k, in N. The acceleration of the mass is given by a = 2.0i + 7.0j + 5.0k, in m/s2. Calculate the magnitude of F2.
A fresh pumpkin has a mass of 2.44 kg is droped from above the ground. Ignore air friction. Calculate the momentum change of the pumpkin
An ideal gas in a cylinder is compressed adiabatically to one half its original volumes. Obtain how much energy is transferred into or out of the gas by heat in this process
An underwater scuba diver sees the Sun at an apparent angle of 40.0° from the vertical. What is actual direction of the Sun
In the Atwood machine shown below, m1 = 2.00 kg and m2 = 5.50 kg, How far will m1 descend below its initial level and Find the velocity of m1 after 1.80 s
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