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A woman of mass 60 kg runs at a speed of 5 m/s towards a carousel and jumps onto it at the very edge. If the carousel has a mass of 1000 kg, a radius of 2m, and is shaped like a solid disk, what is the angular velocity of the carousel (with the woman on it) after she jumps on? The carousel rotates without friction.
A copper wire, 1 m long, has a density of 0.020 g/cm and vibrates in 4 segments when under tension produced by a 250 g hanging mass
An electron is 0.030 m from a proton and has velocity 10 m/s towards the proton. What is the speed of the electron
Suppose you make a cup of tea with boiling water straight from a kettle, but then the phone rings, Estimate the change in entropy of the room during the cooling of the tea
A pipe is open at both ends. Its length is 22.81 cm. If I excite standing waves in the pipe by blowing air over one of its ends, Find the distance between the antinodes at the two ends of the pipe
You travel to an alien planet. The local population tries very hard to tell you what gravity is on the surface. You cannot understand them, and do not have a tool to calculate gravity directly. You also ran out of water. They offer a liquid to you, o..
A copper ion with a single electron (denoted Cu28+) is in an excited state with radius the same as that of the ground state of hydrogen. How much energy in eV is needed to ionize the ion from this excited state
A bullet is fired into a large stationary absorber and comes to rest. Temperature measurements of the absorber show that the bullet lost 2060J of kinetic energy, What is the mass of the bullet
A wooden block with mass 1.15kg is placed against a compressed spring at the bottom of a slope inclined at an angle of 28.0?, Calculate the amount of potential energy that was initially stored in the spring
What was the change in velocity of the scooter.what mass may be placed 2 cm away from the other end of the bar to keep the bar horizontal.
The rocket moves for 3.00 s along its initial line of motion with an acceleration of 32.0 m/s2. At this time, its engines fail and the rocket proceeds to move as a projectile. Find out the maximum altitude reached by the rocket.
During a very quick stop, a car decelerates at 7.2 m/s2. Assume the forward motion of the car corresponds to a positive direction for the rotation of the tires, How long does the car take to stop completely in seconds
A light string is wrapped around a solid cylinder and a 200 g mass hangs from the free end of the string, what is the tension and the mass of the cylinder
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