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A chair of weight 75.0 lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of = 40.0 directed at an angle of 43.0 below the horizontal and the chair slides along the floor. Using Newton's laws, calculate , the magnitude of the normal force that the floor exerts on the chair.
Let the building is 50 m tall, the initial horizontal velocity is 9.0 m/s, and the initial vertical velocity is 12.0 m/s. select your coordinates such that the positive y-axis is upward, and the x-axis is to the right, and the origin is at the poi..
The weight of the car is 14 kN. You know three points on the plane, What is the force of friction (Ff=?).
Several vectors in the x-y plane are shown in the figure with their tails at the origin of the coordinate system and with a label at their heads
How far apart are they when lighter astronaut has move.
A curve in a road forms part of a horizontal circle. As a car goes around it at constant speed 14.0 m/s, What is the total horizontal force on the driver if the speed on the same curve is 23.7 m/s instead
A gas with initial conditions (P,V,T)i expands isothermally until the final volume=6.389 times the initial volume
make sure to label the graphs with units and values to indicate any critical points of the ball's motion.
Three charges are to be placed as follows: q1: 10.00 µC at (0.00,0.00) q2: -25.00 µC at (4.00,0.00) and q3: -2.00 µC at (0.00,-3.00), Calculate the electric potential energy of the group of three charges
When a second pipe is played at the same time, a 1.40 Hz beat note is heard. By how much is the second pipe too long.
The horsepower rating commonly used for engines indicates the rate at which they can do work. What amount of work does the engine do on each cycle
Consider a conical pendulum with a bob of mass m=82.0 kg on a string of length L=10.0 m that makes an angle of theta=8.00 degrees with the vertical, Determine the radical acceleration of the bob.
A 5.8 m diameter merry-go-round is rotating freely with an angular velocity of 0.90 rad/s. What is the angular velocity of the merry-go-round now
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