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An object weighing 330 N in air is immersed in water after being tied to a string connected to a balance. The scale now reads 265 N. Immersed in oil, the object appears to weigh 285 N.
(a) Find the density of the object.
kg/m3
(b) Find the density of the oil.
A 17.0-g piece of Styrofoam carries a net charge of -0.75 µC and is suspended in equilibrium above the center of a large, compute the charge per unit area on the plastic sheet
A 66.5kg astronaut is doing a repair in space on the orbiting space station. She throws a 2.30kg tool away from her at 3.10m/s relative to the space station, With what speed will she begin to move
A cube is 1 cm X 1 cm X 1cm. It is cut 10 times along x,y,z, axis. What is the volume and surface area, and number of cubes after each cut
A 50-m length of wire is stretched horizontally between two vertical posts, Find the magnitude of the earth's magnetic field at the location of the wire, assuming the field makes an angle of 67.0° with respect to the wire
What is the radius of a bobsled turn banked at 75.0° and taken at 30.0 m/s, assuming it is ideally banked
find the radius of curvature of the vertical profile of the road at A. Using value of the curvature found, determine the force exerted on a 160-lb driver by the seat of his 3100-lb car as the car, traveling at a constant speed of 50 mi/h, passes t..
Suppose that an insulating container of negligible mass contains 0.12 kg of water at a temperature of 4 degrees C. what is the final mass (in kg) of the water in the system
To protect their young in the nest, peregrine falcons will fly into birds of prey (such as ravens) at high speed. What was the raven's speed right after the collision
An electric water heater holds 165L. If electricity costs 0.18 per , how much does it cost to raise the water temperature from 10 to 60.
a sound wave traveling in 26 degrees C air has a pressure amplitude of 0.500 Pa. (assume that the density of air is 1.29 kg/m^3). What is the intensity of the wave
A monatomic ideal gas that is initially at a pressure of 1.41 * 10^5 Pa, How much work is done by the gas during the compression
It is claimed that if a lead bullet goes fast enough, it can melt completely when it comes to a halt suddenly, Find the minimum speed of a lead bullet
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