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Two tiny conducting spheres are identical and carry charges of -29.4C and +70.0C. What is the magnitude of the force that each sphere experiences
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1360 Hz. What is the speed of the bird
Mary runs off a diving board with a velocity of 1.7 m/s in the horizontal direction. If the water surface is 2 meters below the board: how long will it take for her to hit the water
A steel cable has a cross-sectional area 3.44 × 10-3 m2 and is kept under a tension of 3.33 × 104 N. At what speed does a transverse wave move along the cable
In extremely cold weather conditions where the inside thermostat is set to 27 C and the outside temperature is -20 C, How much energy might you lose in one week
A pot of hot water is boiling on your stove. The pot is in the shape of a round cylinder made of aluminum which is 10 cm in radius. What is the difference in temperature between the inner and outer s
A chimp jumps up from a trampoline and lands on the ground, 1.2 meters below. the total time taken was .095 secons. what is the maximum height above the ground
Andy is waiting at the signal. As soon as the light turns green, he accelerates his car at a uniform rate of 8.00 meters/second2. What is the displacement of Andy's car
A 1.0 mCi source of Phosphorus called P-32, a beta emitter, is imlanted in a tumor where it is to administer 36 Gy. how long should the source remain implanted
Scientists plan to release a space probe that will enter the atmosphere of a gaseous planet. What is the approximate temperature at this altitude
A charge of 0.43 C is spread uniformly throughout a 36 cm rod of radius 7 mm. What are the volume and linear charge densities
Three point charges have equal magnitudes, two being positive and one negative. Calculate the magnitude of the net force
A certain fuel-efficient hybrid car gets gasoline mileage of 55.0 mpg (miles per gallon). how many tanks of gas will you use to drive 1600 km
What magnitude point charge creates a 14000 N/C electric field at a distance of 0.230 m, How large is the field at 20.0 m
Four equal charges of +4.9×10-6 C are placed on the corners of one face of a cube of edge length 7.0 cm. calculate the magnitude of the force on the charge
A heavy crate is attached to the wall by a light rope, as shown in the figure. Another rope hangs off the opposite edge of the box. which rope will break
You throw a ball vertically upward from the edge of the roof of the Bisdorf building with a speed 15.0 m/s. Find the position and velocity of the ball 1.00 s after leaving your hand
Light from a laser beam with a wavelength of 600 nm passes through a narrow single slit and observed on a screen 1.5 m behind the slit. How wide is the slit
A uniform electric field of magnitude 380 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 2.60 cm. What is the work done by the field
A playground is on the flat roof of a city school, 5.4 m above the street below (see figure). The vertical wall of the building is h = 6.90 m high, Find the vertical distance by which the ball clear
A ball rolls off a table with a horizontal velocity of 5 m/s If it takes 0.6 secs for it to reach the floor, What is the verticle componet of the balls velocity just before it hits the floor
Calculate the angular velocity of an electron orbiting a proton in the hydrogen atom, given the radius of the orbit is 0.500x10-10 m
A 5.00 g charged insulating ball hangs on a 27.0 cm long string in a uniform horizontal electric field, mfind the strength of the field