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Question1
Two gerbils run in place with a linear speed of 0.60 on an exercise wheel that is twisted like a hoop. Find out an angular momentum of the system if each gerbil has a mass of 0.22 and exercise wheel has a radius of 7.5 and a mass of 6.0
Question2
If an arm is 4.25m long and pivots about one end, at what angular speed (in rpm) must it spin so that an acceleration of lander is the same as the acceleration due to gravity at the surface of Europa? The mass of Europa is 4.8 times 10^ (22) Kg and its diameter is 3138 km.
Question3
A 200g granite cube slides down a 45 degree frictionless ramp. At bottom, just as it exits onto a horizontal table, it collides with a 300g steel cube at rest. How high above table must granite cube be released to give the steel cube a speed of 2 m/s?
A scuba diver and her gear displace a volume of 65 L and have a total mass of 68 kg. Will the diver sink or float
A 14.40 kg block and a 25.3 -kg block are resting on a horizontal frictionless surface. Between the two is squeezed a spring (spring constant = 1108 N/m).
A pot containing 1.03 liters of water, initially at 19*C, How much heat must be supplied to bring it to a boil
A baseball player hits a double and ends up on second base. A baseball "diamond" is a square, each side of length 27.4 m, with home plate and the three bases on the four corners. What is the magnitude of the player's displacement?
Suppose that a person pushes a box with a constant force of 100 N over a distance of 25 meters. What is the change in kinetic energy
A particle undergoes two displacements, measured from the positive x-axis, with counter- clockwise positive, find the magnitude of the second displacement in meters
Outline what you know about Plasmonics? Outline what you know about Raman spectroscopy and surface enhanced Raman spectroscopy?
A charged particle travels undeflected through perpendicular electric and magnetic fields whose magnitudes are 1000N/C and 60mT , respectively. Find the speed of the particle if it is a proton.
A .075 Kg toy rocket is launched straight up from the ground at 19 m/s. Calculate the power of gravity force during the first 10s
A flight attendant pulls her 65N flight bag a distance of 388m along a level airport floor at a constant velocity. The force she exerts is 38 N at an angle of 51° above horizontal.
An emf is induced in a conducting loop of wire 1.16 m long as its shape is changed from square to circular.
You close the top of your straw with your thumb and lift the straw out of your glass containing Coke. How large is the error (in per cent) if you neglect the air in the straw
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