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A piece of aluminum has density 2.70g/cm 3 and mass775 g. The aluminum is submerged in a container of oil of density 0.650 g/cm3.How much oil does the metal displace?
A solid rock, suspended in air by a spring scale, has a gauged mass of 9.0 kg. When the rock is submerged in water, the scale reads 3.3 kg. What is the density of the rock? (Water density= 1000 kg/m3)
A container holds 2.9 mol of gas. The total average kinetic energy of the gas molecules in the container is equal to the kinetic energy of a 8.1x10-3 kg bullet with a speed of 750 m/s
In a pool game, the cue ball, which has an initial speed of 5m/s, makes an elastic collision with the eight ball, which isinitially at rest. Find the direction of motion of the cue ball after the collision
Determine the magnetic force on an identical particle when it travels through the same magnetic field with a speed of 5.44 m/s at an angle of 32.2° relative to the magnetic field
Two lightweight rods 24 {rm cm} in length are mounted perpendicular to an axle and at 180 ^circ to each other. At the end of each rod is a 480 {rm g} mass. The rods are spaced 42 {rm cm} apart along an axle. The axle rotates at 4.90 rad/s.
How much of the rope must be pulled. Find the magnitude of the magnetic field at the point x = 0, y = 0.7 m, z = 0.
two stones are released from rest at a certain height one after the other.a. will the difference between their speeds
Michael Phelps won a gold medal at the 2008 Beijiing olympics by swimming the 200 meter medley in 1:54:80. On an off-day Mike swims the medley in 1:58:32. What is the speed in mph? (Give the ans. to two decimal places)
A truck rests on a bridge span whose length between support is 120 feet. Find the upward force exerted by each support pier on the bridge
liquid water with density prho is filled on top of a thin piston in a cylinder with cross-sectional area a and total
Two identical 19.1?kg spheres of radius 12.7cm are 35.7cm apart (center-to-center distance). If they are released from rest and allowed to fall toward one another, what is their speed when they first make contact
An electric dipole is formed from +/-4.0 nC point charges spaced 3mm apart. The dipole is cantered at the origin, oriented along the y-axis. What is an electric field strength at point (x,y) = ( 6.0 cm, 0 cm)
A glass U-tube with a uniform diameter of 0.850 cm is used to determine the density of an oil. Calculate the density of the oil
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