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A large man sits on a four-legged chair with his feet off the floor. The combined mass of the man and chair is 95.0 kg. If the chair legs are circular and have a radius of 0.500 cm at the bottom, what pressure does each leg exert on the floor.
The drawing shows an equilateral triangle, each side of which has a length of 1.59 cm. Point charges are fixed to each corner, Determine the charge qA and q
A wire is bent to form a circle whose diameter is 10cm. Find the maximum torque that the magnetic field can exert on the wire
Tasha with a nearsighted eye has near and far points of 16 cm and 25 cm, respectively. What is the power of the lens she uses
Two balls with a net charge of - 4.0 C and + 10.0 C are separated by 2 cm. A) What is the electrostatic force on the positive charge? B) What is the electrostatic force on the negative charge?
An RLC series circuit has R=1.35 kOhm, L=225 mH, and C=2.50 uF (micro farads) and is connected across a 60 Hz power supply. find the reactances of the capacitor and inductor
Find the minimum compression of the spring needed to keep the block from falling, given that the coefficient of static friction between the block and the wall is 0.50
A 72 kg man in a 5-kg chair tilts back so that all weight is balanced on two legs of the chair. Assume that each leg makes contact with the floor over a circular area with the radius of 1.0 cm, and find out the pressure exerted on the floor by eac..
The difference in piezometric pressure, pz,A – pz,B. Express both answers in kPa and pressure differences pA - pB.
Astronaut Ann wishes to travel from one side of her spaceship to the other side so she pushes herself away from a wall, What is Ann's speed relative to Bob as she drifts across the spacehip
A camera takes a perfectly exposed picture when the lens diaphragm is set to f/4 and the shutter speed is 1/250 s, what should the new shutter speed be so that the exposure is still correct
Two spheres, fastened to "pucks" riding on a frictionless air track, are charged with +2 × 10-8 C, and +6 × 10-8 C, correspondingly. Both objects have the same mass. As they repel.
Two friends are carrying a crate of mass 200 kg up a flight of stairs. The crate has length 1.25 m and height 0.500 m, What is the magnitude of the upper person's force
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