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1.) Suppose you weigh 587 N, and when you stand on one foot, your weight is spread out over an area of 1.510×10-2 m2. What is the pressure does your foot exert on the floor?
2.) Atmospheric pressure is around 1.010×105 Pa. Think about the air pushing on a circular glass window which has a radius of 0.0810 m. What is the force with which the air is pushing on one side of the glass?
A jet airplane flying from Darwin, Australia, has an air speed of 256 m/s in a direction 5.0° south of west. What is the magnitude of the velocity of the airplane relative to earth
Mechanics: Center of Mass. A 60 kg woman and a 90 kg man stand 10.0 m apart on frictionless ice.
Find the resonance frequency of the ear canal, Treat it as a half-open pipe of diameter 8 mm and length 26.7 mm
two children are playing a game in which they try to hit a small box on the floor with a marble fired from a spring-loaded gun that is mounted on a table. How far should Rhoda compress the spring to score a direct hit
A compact disk player has just been turned off. A disk decelerates uniformly from an initial angular velocity of 8.30 rev/s. What is the tangential acceleration of a point on the disk 3.60 cm from the axis
A heat pump has a coefficient of performance equal to 4.35 and requires a power of 1.77 kW to operate. How much energy does the heat pump add to a home in one hour
A uniform magnetic field B is perpendicular to the plane of a circular loop of radius r. Find the emf in the loop as a function of time
An outboard motor for a boat is cooled by lake water at 14.7 degC and has a compression ratio of 14.1, Calculate efficiency of the engine's Otto Cycle
The middle-A organ pipe was designed to sound at exactly 440 Hz when the temperature is 20 C. How long is the organ pipe if it is open on both ends
A world-class sprinter accelerates to his maximum speed in 4.0s. He then maintains this speed for the remainder of a 100m race, What is his average acceleration for the entire race
Two carts are involved in an elastic collision. The dynamics cart A with mass 0.550 kg hits the collision cart B with mass 0.550 kg (initially at rest). What is the final kinetic energy of the system
A rope that is tied between a motor and a crate can pull the crate up a hill of ice (assume no friction) at constant velocity. Write the equations for the body in equilibrium
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