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The flywheel of an engine has moment of inertia 2.50 kg about its rotational axis. What constant torque is needed to bring it up to an angular speed of 400 rev/min in 8.00 s, starting from rest?
0.023mol of a diatomic gas, with initial temperature 25?C, How much heat is added during this process
The energy imparted to an electron as it moves through a potential of magnitude V is eV, where e is the charge on an electron. How do you find theoretical value for the slope of your line
9.00 of aluminum at and 19.0 of copper are dropped into 51.0 of ethyl alcohol at. What is the initial temperature of Copper
Your 300 ml cup of coffee is too hot to drink when served at 92C.What is the mass of an ice cube, taken from a -19C freezer, that will cool your coffee to a pleasant 61C.
Consider a frictionless track. A block of mass m1=10.0kg is released from A, at a height h=17.0m. It makes a head-on elastic collision at B with a block of mass m2=22.0kg that is initially at rest. Calculate the maximum height to which m1 rises after..
A sealed container of volume 0.10 m3 holds a sample of 3.0 × 1024 atoms of helium gas in equilibrium. Calculate the temperature and pressure of the helium gas
Two people wish to push a big beer freezer weighing 2000 N up aramp inclined at an angle of 37.0o with the horizontal. The coefficient of kinetic friction between the freezer and theramp is 0.500.
At a playground, a 22 kilogram boy plays on a slide that drops through a height of 2.1 meter. Determine the boy speed at the bottom of the slide
a boat is traveling with a velocity of 5 kmhr upstream. the river is flowing at a velocity of 2kmhr downstream. what is
A circular loop of radius 2.58 cm contains 65 turns of tightly wound wire. what torque acts on the loop
A positive charge of q1 is located 4.59 m to the left of a negative charge q2. The charges have different magnitudes. How far to the left of the negative charge is one spot
An air-track glider is attached to a spring. The glider is pulled to the right and released from rest at t =0s . It then oscillates with a period of 1.50 sand a maximum speed of 36.0 cm/s. What is the amplitude of the oscillation? What is the glider'..
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