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A passenger on a boat moving at 1.50 m/s on a still lake walks up a flight of stairs at a speed of 0.50 m/s. The stairs are angled at 45 degrees pointing in the direction of motion. what is the velocity of the passenger relative to the water?
A 1500 kg elevator starts from rest and moves upward with constant acceleration for 4.0 s until it reaches its operating speed of 2.0 m/s. Calculate the power required by the elevator motor while the elevator is operating at its operating speed
A 10.0 kg object starting from rest falls through a viscous medium and experiences a resistive force R = - b v, Find the terminal speed of the object
A uniform electric field (thatis, ~E is the same at every point) exists in a region between oppositely charged plates. An electron is released from rest at the surface of the negatively charged plate and strikes the surface ofthe opposite plate, 2..
A cylinder contains a mixture of helium and argon gas in equilibrium at a temperature of 151? C. Boltzmann's constant is 1.38066 × 10?23 J/K, What is the rms speed of argon
A fuel pump sends gasoline from a car's fuel tank to the engine at a rate of 4.80x10-2 kg/s. The density of the gasoline is 737 kg/m3, and the radius of the fuel line is 2.18x10-3 m. What is the speed at which gasoline moves through the fuel line?
The bottom of an aluminum pot has an area of 157 cm2 and a thickness of 3.25 mm. How many watts are needed to boil water at this rate
Water flows through two garden hoses. The large diameter hose is connected to the end of the small diameter hose. How are the pressures in the two hoses related
A crane of mass M = 11500 kg lifts a wrecking ball of mass m = 1310 kg directly upward. Find the magnitude of the normal force exerted on the crane by the ground while the wrecking ball is moving upward at a constant speed of v = 1.45 m/s
a baseball batter swings the bat and applies a force of 66.95 n to the ball for a time of 0.36 s. assuming the force is
a 3 kg cylinder falls vertically from rest in a very tall, evacuated tube 20 m above the surface of the earth. what is the kinetic energy just before it hits the earth
Moving in the x direction, a particle carrying 1.0 m C experiences no force. What magnetic force would it experience if it moved along the y axis with speed v
A small solid ball of mass M and radius R rolls without slipping on the track whose height y as a function of horizontal position x is given by y=ax^2, Find an expression for the period of the resulting motion
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