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A large water tank springs a leak in its side whcih is 10 m above the ground. How far above the leak is the water level in the tank
You have a beach ball which has a radius of 11 cm and a mass of 0.3 kg. You have a lead ball which has the same radius but has a mass of 120 kg. What is the buoyancy force felt by the beach ball
You are driving a car which is heading 20 m/s towards a brick wall. You sound a horn which emits at a frequency of 400 Hz when at rest. What is the beat frequency that you hear
An ideal massless spring is hanging vertically. When an unknown mass is attached to the spring, What is the frequency of the resulting oscillation
You sing into a well and find that the well resonates at frequencies of 198 Hz and 234 Hz with no resonances between these two frequencies. What is the frequency of the fundamental mode
500 mL of a liquid with a coefficient of volume expansion of 267x10-6/oC fills to the brim a container that has a coefficient of volume expansion of 99x10-6/oC. how much of the liquid will overflow
At the instant before a particle collision at the Belle Experiment, an electron is moving north with a total energy of 8 GeV, find the speed of the electron as seen by the positron
The water in a deep underground well is used as the cold reservoir of a Carnot heat pump that maintains the temperature of a house at 294 K. Determine the temperature of the well water
An object oscillates in 1-D with an amplitude of 10 cm. At t = 0 s, its position is x = - 5 cm, What is the velocity of the object
A 20.0-kg mass is supported by two strings. The left string is 2.00 m long and the right string is 5.00 m long. What is the tension in the left side string
A slide projector has a lens of focal length 150. mm. An image 100. cm × 100. cm is formed of a slide whose dimensions are 50.0 mm × 50.0 mm
You are in a radar station on the coast. You are monitoring the motion of two ships. The Pequod is 4.00 km away, What is the speed of the Jeroboam seen by Captain Ahab
A 243-g ball falls vertically downward, hitting the floor with a speed of 2.48 m/s, Calculate the magnitude of the change in the ball's momentum
A 2.30-gram air inflated balloon is given an excess negative charge, q1 = -3.50 × 10-8 C, by rubbing it with a blanket. How much charge, q2, does the rod have
A penny has a mass of 2.50 g, a diameter of 19.55 mm, find the density of the material from which the penny is made
if you place the magnifying glass at half the distance needed to cook an ant, how big would the image of the ant be
Two pots are identical except that the flat bottom of one is aluminum, whereas that of the other is copper. find the temperature of the heating element on which the copper bottom rests
A cylindrical storage tank has a radius of 1.22 m. When filled to a height of 3.71 m, What is the density of the solvent
A water bed for sale has dimensions of 1.83 m x 2.13 m x 0.229 m. Find the weight of the water in the bed
A person's body is covered with 1.69 m2 of wool clothing. The thickness of the wool is 2.12 × 10-3 m. How much heat per second does the person lose due to conduction
A spaceship with an earth weight of 3430 N is sent to Mars, which has radius, RM = 3.40 × 106 m, Find the weight of the spaceship on the Martian surface
Light inside an optical fiber tube hits the wall between the tube and air and is totally internally reflected. what is the index of refraction of the tube
A pinhole camera takes a picture of a building 200 m tall. how far is the camera from the building
Take the largest image distance and calculate the focal length of the lens used. image distance = 226 mm object distance =100 mm focal length = ??? How do you find the focal length
A solid, horizontal cylinder of mass 10.0 kg and radius 1.30 m rotates with an angular speed of 5.50 rad/s about a fixed vertical axis through its center. Determine the final angular speed of the sy