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An object is suspended from a mass balance. When the object is surrounded by air, the mass balance reads 150 gram. When the object is completely submerged in water, the mass balance reads 90 gram. The object used is completely submerged in an unknown liquid. If the mass balance reads 75 gram, estimate the density of the unknown liquid?
A cylindrical 87.50ohm resistor is made from a coil of copper wire whose total mass is 18.0 g, What is the diameter of the wire
A 70 g bullet traveling at 250 m/s penetrates a block of ice at 0°C and comes to rest within the ice. Assuming that the temperature of the bullet does not change appreciably, how much ice is melted as a result of the collision?
A 10.0 cm radius piston compresses a gas isothermally from a height of 15.0 cm to 2.50 cm at a constant pressure of 2.0 atm. How much heat was added to the gas
q1. a 73 trampoline artist jumps vertically upward from the top of a platform with a speed of 4.0. if the trampoline
A diver runs horizontally with a speed of 0.767 m/s off a platform that is 8.40 m above the water. What is his speed just before striking the water?
A 1.00 kg object is attached to a horizontal spring. The spring is initially stretched by 0.2 m, obtain the maximum speed of the object
A rock is thrown vertically upward with a speed of 14.0m/s from the roof of a building that is 50.0 m above the ground. Assume free fall. In how many seconds after being thrown does the rock strike the ground? What is the speed of the rock just befor..
a ball of mass .150 kg is dropped from rest from a height of 1.25m. it rebounds from the floor to reach a height of 1.25 m. what impulse was given to the ball by the floor
Sean climbs a tower that is 84.7 m high to make a jump with a parachute. what is the potential energy of Sean
a ray of light traveling through one type of glass, In which type of glass does light travel at a higher speed
How do you figure out a carnot engine cycle problem having temperature range from 4000k to 400k, pressure range from 1atm to 1000atm, max volume = 500 liters.and 20.31 moles of working fluid(monatomic gas). Please show steps.
A 90° elbow is used to direct water (? = 1000 kg/m3) flow at a rate of 25 kg/s in a horizontal pipe upward. The di-ameter of the entire elbow is 10 cm. The elbow discharges water into the atmosphere, and thus the pressure at the exit is the local ..
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