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A 47.0 kg woman stands up in a 70.0 kg canoe of length 5.00 m . She walks from a point 1.00m from one end to a point 1.00m from the other end.
Part A) If the resistance of the water is negligible, how far does the canoe move during this process? (answer in meters)
Observer A, who is at rest in the laboratory, is studing a particle that is moving through the laboratory at a speed of 0.624c. how far apart are the two markers in the laboratory
A submarine on the ocean surface receives a sonar echo indicating an underwater object. What is the object's depth
The power P of an Electric circuit varies jointly with resistance , R and with the square of the current, I. find the power if the current is 2.00 A and the resistance is 2.00 ohms
A 66.5kg astronaut is doing a repair in space on the orbiting space station. She throws a 2.30kg tool away from her at 3.10m/s relative to the space station, With what speed will she begin to move
A 5 N force acts on a 0.4-kg object for 0.3 seconds. By how much does the object's momentum change
Block 1, of mass = 9.70 , moves along a frictionless air track with speed = 19.0 . It collides with block 2, of mass = 15.0 , which was initially at rest. The blocks stick together after the collision. Find the magnitude of the total initial momentum..
Consider a conical pendulum with a bob of mass m = 68.0 kg on a string of length L = 10.0 m that makes an angle of ? = 7.00° with the vertical. Determine the radial acceleration of the bob
An electric current of 1 A flows through a 20 ? resistor which is kept at a constant temperature of 10° C by flowing water. In 1 s what is the entropy change of the resistor and the entropy change of the water?
The speed of a longitudinal wave in a mixture of helium and neon at 300k was found to be 758m/s. what is the composition of the mixture
what is the distance between town and john's current location? Illustrate what is john's current location?
An ideal gas is compressed at constant pressure to one-half its initial volume. a)If the pressure of the gas is 150kPa , and 770J of work is done on it, find the initial volume of the gas.
For a simple harmonic oscillator with k = 4.0 N/m and A = 0.75 m, the time between maximum velocity and maximum acceleration is 2.50 s. (a) what's the oscillation period? (b) What's the mass? (c) find the maximum velocity and maximum acceleration.
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