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A 40 g ball of clay traveling east at 5 m/s collides with a 80 g ball of clay traveling 30 degrees south of west at 1 m/s. What are the speed and direction of the resulting 120 g ball of clay?
An electron that has a horizontal initial speed of 4.50 106 m/s enters a region that has anelectric field of 120 V/m pointingvertically upward. How long does the electron take to travel19 cm in the horizontal direction?
Two blocks are in contact on a frictionless table. A horizontal force F is applied to M2. find the magnitude of the contact force between the two blocks
You have a 77.7-cm-long copper rod with a rectangular cross section of dimensions 5.75 cm by 8.13 cm. Find the heat current through the rod
A tube is partially and vertically inserted into a container of water. Two sequential resonant frequencies are heard when a 215-Hz tuning is struck and held atop the end of the tube that is out of the water. What is the temperature of the surroundi..
a pair of parallel plates is charged by a 12-v battery. if the electric field between the plates is 1200 n/c, how far apart are the plates
You have a flashlight that uses 0.75 watts of power and requires 1.5 volt battery, How many joules of energy are used by the flashlight in 15 minutes
0.45 kg of a metal at 90.°C is added to 0.40 kg of water at 20.0°C. If the final temperature of the mixture is 26.°C, what is the specific heat of the metal
A red car and a green car, identical except for the color, move toward each other in adjacent lanes and parallel to an x axis. What is the initial velocity of the green car
A car drives onto a loop detector and increases the downward component of the magnetic field within the loop from 1.2*10^-5 to 2.6*10^-5 in 0.38s
the green block b has a mass of 13.40 kg and is moving to the left at a speed of 3.50ms. the red block a has a mass of
Two lightbulbs operate on the same potential difference. What is the ratio of the current in bulb A to the current in bulb B
A ball traveling in a circle with a constant speed of 3 m/s has a centripetal acceleration of 4 m/s2. What is the radius of the circle
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