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Q1. A 1700 kg car is travelling at 120 m/s while the driver takes his foot off the gas pedal. The car eventually rolls to the stop after 452 meters. Find the force of friction acting on car.
Q2. A baseball pitcher throws a ball at 43 m/s to a catcher 17m away. How far does the ball drop by the time it gets to catcher?
Q3. At a construction site, a 63.0 bucket of concrete hangs from a light (but strong) cable that passes over a light friction-free pulley and is connected to an 83.0 box on the horizontal roof. The cable pulls horizontally on the box, and a 45.0 bag of gravel rests on top of the box. The coefficients of friction between box and roof are shown. The system is not moving.
If you had been tasked to remove the water from New Orleans after Hurricane Katrina would you select a radial flow, mixed flow or axial flow pump for this purpose? Explain it briefly.
What is speed of the command module
Calculate the smallest coefficient of static friction necessary for mass A to remain stationary.
The difference in piezometric pressure, pz,A – pz,B. Express both answers in kPa and pressure differences pA - pB.
A 29.0 kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 85.0 N and is directed at the angle of 30.0° above the horizontal. Find out the coefficient of kinetic friction.
The electric field points radially outward at all points within the sphere (and outside too, for that matter). What is the strength of the electric field at a distance r from the center, inside sphere.
The magnitude of the acceleration due to gravity
What is Lagrangian for the system
Monochromatic light from a distant source is incident on a slit 0.750 {rm mm} wide. On a screen 2.00 {rm m} away, the distance from the central maximum of the diffraction pattern to the first least amount is measured to be 1.35 {rm mm}.
Find the boundary layer thickness and drag on a given plate if Water at 15°C flows over a plate 2m long and 25cm wide at a velocity of 5 m/s along its length.
Imagine a "free" electron and a "free" proton held midway between the plates of a charged equivalent plate capacitor. When released, how do their accelerations and directions travel compare.
Find the force to keep object moving.
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