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A 74 kg person is parachuting and experiencing a downward acceleration of 2.9 m/s2. The mass of the parachute is 5.8 kg.
(a) What is the upward force on the open parachute from the air?
(b) What is the magnitude of the downward force on the parachute from the person?
A 4.20kg steel ball strikes a wall with a speed of 7 m/s at an angle of 60° with the surface. It bounces off with the similar speed and angle. If the ball is in contact with the wall for 0.20 s, what is the average force exerted by the wall on bal..
Two large identical flat metal plates are placed parallel to one another, seperated by a small distance compared to their linear size. One plate is given a charge per unit area 2.50E-5 C/m2 and the other a charge per unit area -2.50E-5 C/m2. Using..
A rock is thrown vertically up at 6.7 m/s. Has the rock made it to the highest point in the path
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..
What is the tension in the string
A glass flask at 0 degrees Celsius is filled to the brim with 1000 cm(^3) of mercury, what is the coefficient of volume expansion in the glass
suppose that no heat is lost to the surroundings, what is the situation when termal equilibrium is reached.
A simple pendulum with a period T = 2.00 s is attached to the ceiling of an elevator which is initially at rest, Calculate the period of oscillations when the elevator accelerates downwards
A mountain climber jumps a 2.4 -wide crevasse by leaping horizontally with a speed of 7.2. find the height difference between the two sides of the crevasse
If the two halves of the log only separate by a distance of 0.05m while the wedge travels 0.2m into the log, how much force is the wedge exerting on the two halves of the log to rip them apart.
What is the car's maximum speed on an incline. A fire hose held near the ground shoots water at a speed of 5.4 m/s, At what angle(s) should the nozzle point in order that water land 2 m away.
Car A uses tires for which the coefficient of static friction is 1.1 on a particular unbanked curve. The maximum speed at which the car can negotiate this curve is 25 m/s. Car B uses tires for which the coefficient of static friction is 0.65 on the s..
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