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An objectweighing 330 N in air is immersed inwater after being tied to a string connected to a balance. Thescale now reads 270 N. Immersed inoil, the object weighs 280 N.
(a) Find the density of the object.
kg/m3
(b) Find the density of the oil.
in a ski race starting from rest a 65kg skier descends through 120 meters of vertical drop nd finishes his run at 58 miles per hour. how much work is done by the skier
A long transmission wire carries an AC current given by I=400 sin(120pi*t). The transmission wire is parallel to the x-axis and located at y=0, z=20. What will be the induced voltage in the loop
X rays with initial wavelength 6.60×10?2nmundergo Compton scattering. What is the largest wavelength found in the scattered x rays
A 100 g ball on a 60 cm long string is swung in a vertical circle whose center is 200 cm above the floor. The string suddenly breaks while it is parallel to the ground and the ball is moving upward. The ball reaches a height 600 cm above the floor..
A vertical scale on a spring balance reads from 0 to 245 rm{N}. The scale has the length of 11.0 rm{cm} from the 0 to 245 rm{N} reading. A fish hanging from bottom of the spring oscillates vertically at a frequency of 3.00 rm{Hz}.Ignoring the mass..
a 25-N block slides down a plane inclined at 21.2 degrees to the horizontal with constant velocity. find the total force resisting the motion of the block
A ball is thrown 20.0 m/s at an angle of 40.0º with the horizontal. Assume the ball is thrown at ground level. How long does it take the ball to reach the wall
A 2.00 kg block is placed against a spring on a frictionless30.0 degree incline. What is the change in the gravitational potential energyof the block-Earth system
imagine that we have a string 1.5 meters long that is fixed at both ends. what is the frequency of the normal mode of the strings oscillation that has 3 antinodes
A log of mass 40 kg is dropped into river at 0°C. If the relative density of the log is 0.8, what will be the volume of the log above the surface
An egg with a mass of 40 grams is on a table of 1 meter high, it falls and breaks. what was the force exerted by the floor on the egg so that it broke
A computer can fetch information from the memory in 3.0 ns, a process that involves sending a signal from the Central Processing unit (CPU) to memory and awaiting return of the information. find the maximum distance between the CPU and the memory
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