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The ocean can be as deep as 10 .Assuming the density for seawater is constant at 1030 , what is the absolute pressure at such depths? What would be the percentage change in volume of a cube of aluminum that measured 1.50 on a side when at the ocean surface? how much did the aluminum cube's volume change?
An object has a charge of -4.3 ?C. How many electrons must be removed so that the charge becomes +2.8 C?
At room temperature what is the strength of the electric field in a 6-gauge copper wire (diameter 4.12 mm) that is needed to cause a 1.73-A current to flow?
An engineer in a locomotive sees a car stuck on the track at a railroad crossing in front of the train. When the engineer first sees the car, the locomotive is 130 m from the crossing and its speed is 17 m/s.
a man sitting in a bosun's chair that dangles from a massless rope, which runs over a massless frictionless pulley, In each of the four cases, what is the force exerted on the ceiling by the pulley system
A pendulum is 1.20 metres long. What is the speed of the bob when it passes by its equalibrium position if it is pulled aside until it makes an angle of 25 degrees to vertical.
Niagra Falls has a typical flow rate of 4 million cubic feet per minute. This water falls 165 feet. What is the average force of the water on the rock
A 900 kg car travelling east at 15 m/s collides with 750 kg travelling north at 20 m/s. what is the speed of the wreckage
Vectors A and B have scalar product -3.00 and their vector product has magnitude 5.00. What is the angle between these two vectors
Find out the direction of the train motion
A 90 kg gentleman standing on slippery grass is pulled by his two rather unruly children.Overlooking friction, compute Pop's resulting acceleration
A ball with a mass of 29.0 g is on a short compressed spring. When aimed vertically and suddenly released, Calculate the horizontal distance the ball would travel
An object starts from rest at t= 2 s at an initial position of x = 7.2 m and moves with constant acceleration. What is the magnitude of the acceleration of the object
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