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The drawing shows a side view of a swimming pool. The pressure at the surface of the water is atmospheric pressure. The pressure at the bottom of the pool is greater because of the weight of water above it. As a storm approaches, the atmospheric pressure drops. What happens to the pressure at the bottom of the pool
What is the magnitude of net force causing the acceleration.
A 0.30 kilogram toy is attached to the end of a horizontal string and rotated in a circle of radius 1.3 meter on a frictionless horizontal surface. calculate the maximum speed the toy can have
A convex lens is held over a piece of paper outdoors on asunny day. When the paper is held 30 {\rm cm} below the lens, the sunlight is focused on the paper and the paper ignites
A person who is nearsighted has a far point of do = 4.8 m. Write an expression for the focal length of the glasses which will allow her to see distant objects clearly
A hunter on a frozen, essentially frictionless pond uses a rifle that shoots 4.20g bullets at 975m/s. Find the recoil speed of the hunter if he fires the rifle horizontally
Two children fighting over a toy pull on the toy in different directions. One child pulls to the north with a force of and the other child pulls to the east with a force of What is the magnitude of net force on the toy.
Two charged particles are projected into a region where there the magnetic field is perpendicular to their velocities. If the charges are deflected in opposite directions, what can you conclude about the charges
An empty capacitor is capable of storing 1.0 × 10-4 J of energy when connected to a certain battery. If the distance between the plates is halved and then filled with a dielectric, how much energy could this modified capacitor store when connected..
During a lunar eclipse, the moon, earth, and sun all lie on the same line, with the Earth between the Moon and the sun. Calculate the force exerted on the Earth by the moon
Two blocks with masses M1=7.90kg and M2=1.20kg are attached by a thin string which goes over a frictionless, Calculate the magnitude of the frictional force acting on M1
An object slides down a 30o angle slope from rest at a height of 15.0 m. What is the object's speed at the bottom of the slope
A system of ideal gas is expanded adiabatically to1.76 times its volume, while doing 517 J of work. Did the temperature of the gas increase or decrease? How much heat was transferred? Did the temperature of the gas increase or decrease?
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