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Q1. A 80 kg person sits on a 4 kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.3 cm in diameter. Find the pressure in pascals exerted on the floor by each leg of the chair, assuming the weight is evenly distributed.
Q2. A ten kg mass is pushed across the frictionless floor with a force of 86 newtons for 28 meters. What is the amount of work completed?
What is magnitude of the unknown force
An archer puts a 0.54 kg arrow to the bowstring. An average force of 202 N is exerted to draw the string back 1.3 m. suppose that air resistance is negligible.
A curve of radius 50 m is banked for the design speed of 100 km/h. If the coefficient of static friction is 0.60 (wet pavement), at what range of speeds can a car safely create the curve.
A heavy rope used for as a mooring line for a cruise ship sags a shown. If the mass of the rope is 96 kg, what are the tensions in rope at A and B.
Two charged bodies exert the force of .145N on each other. If they are moved so that they are one fourth as far apart, what force is exerted.
Find out total vector displacement
Assuming the diver has inhaled a negligible amount of air from the tank, what is the temperature of the ocean water.
Compute the magnetic flux
A car takes 16 s to go from v = 0 to v = 50 m/s at approximately constant acceleration. If you wish to find the distance travelled using the equation d = 1/2 at2, what value should you use for a.
What is potential barrier for the molecule aggregation? Will the solution be stable at these conditions? Will it be stable at 100 mmol/L salt concentration?
A simple harmonic oscillator consists of the block of mass 1.90 kg attached to a spring of spring constant 196 N/m. while t = 3.00 s, position and velocity of the block are x = +0.129 m and v = +3.415 m/s.
A fun-loving 11.4 {rm kg} otter slides up a hill and then back down to the same place. If she starts up at 5.75 {rm m/s} and returns at 3.75 {rm m/s}, how much mechanical energy did she lose on the hill.
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