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The total volume of water in the oceans is approximately 1.40 multiplied by 109 km3. The density of sea water is 1030 kg/m3, and the specific heat of the water is 4186 J/(kg·°C). Find the increase in mass of the oceans produced by an increase in temperature of 4.8°C.
A sound wave from a siren has an intensity of 88.8 W/m2 at a certain point, What is the intensity level of the sound wave due to the ambulance
a 35 kg uniform ladder is leaned against a building. the 5 m tall ladder makes an angle of 60 degrees with the ground.
what kind of collision is exhibited by a marble going down a chute onto a ruler and colliding with four other marbles on the ruler, and why?
A diver springs upward from a board that is 3.15 meters above the water. Determine her initial speed as she leaves the board
q1. a 28-rm cm-diameter vertical cylinder is sealed at the top by a frictionless 25 kg piston. the piston is 87 cm
A large capacitance of 1.40 mF is needed for a certain application. What is the maximum voltage that can be applied
An oscillating block-spring system has a mechanical energy of 2.27 J, an amplitude of 8.07 cm, and a maximum speed of 1.43 m/s. Find (a) the spring constant, (b) the mass (in kg) of the block and (c) the frequency (in Hz) of oscillation.
You are traveling on an airplane. The velocity of the plane with respect to the air is 110 m/s due east, What is the heading of the plane with respect to the ground
A rock is dropped into an abandoned mine and a splash is heard 6 s later. determine the depth of the shaft
A barbell spins around a pivot at its center at A. The barbell consists of two small balls, each with mass 400 grams (0.4 kg), at ends of a very low mass rod of length d = .6 m. The barbell spins clockwise with angular speed 20 radians/s.
An elevator cable winds on a drum of radius 80.0 cm that is connected to a motor. If the elevator moves down8.0m, how many revolutions has the drum made
Blood is conductive enough that it can be treated as a moving conductor. what is the magnitude of the voltage that is measured with the electrodes in the drawing
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