What is the mass of the second car
A 9300 kg boxcar traveling at 21 m/s strikes a second boxcar at rest. The two stick together and move off with a speed of 13 m/s. What is the mass of the second car?
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An ocean liner leaves New York City and travels 17.0° north of east for 232 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the following directions
Find the temperature (in Celsius) at a depth of 35.0 km (near the base of the crust). Ignore the heat generated by the presence of radioactive elements.
If the average force exerted on the straw by the tree was 70 N, what was the speed of the straw when it hit the tree?
David is driving a steady 28.0 {rm m/s} when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70 {rm m/s^2} at the instant when David passes.
What is the instantaneous power, at a time of 0.00700 seconds, dissipated by a 200 ohm resistor in a resonant AC circuit powered by a generator with a 21.0 V maximum potential difference operating at 5000 rad/s?
Assuming the can to be a cylinder with a height of 12 cm and a diameter of 6.6 cm , find the net inward force exerted on the vertical sides of the can due to atmospheric pressure.
Calculate the energy associated with the magnetic field of a 194-turn solenoid in which a current of 2.00 A produces a magnetic flux of 3.74 10-4 T · m2 in each turn.
Only two forces act on a 3.1 kg object that moves with an acceleration of 3.3 m/s2 in the positive direction of a y axis. If one of the forces acts in the positive direction of an x axis and has a magnitude of 8.1 N, what is the magnitude of the o
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Question: Identify and distinguish between positive and negative reinforcement contingencies.