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A scientist wants to do this experiment but modifies it by filling the balloon with 0.66 moles of neon gas, which behaves as an ideal gas. If the balloon initially holds 0.4 L of the gas and expands to 1.7 L after being heated in the pot over the stove, how much work is done by the system if the experiment is performed at 273 K.
The rotor (flywheel) of a toy gyroscope has mass 0.150 kg. Its moment of inertia about its axis is 1.20x10^-4kgm^2. Find the upward force exerted by the pivot
A 7.0 kg box is raised from rest adistance of 1.0 m by a vertical forceof 120 N. Find the final kinetic energy of the box
How much net heat per second does the runner gain just from radiation if the air temperature is 40.0 oC (104 oF)? (Remember that he radiates out, but the environment radiates back in.) How much net heat per second does the runner gain just from radia..
Two batteries are connected in parallel to power a wheelchair. find the current provided to the motor
A hot-air balloon is ascending at the rate of 14 m/s and is 57 m above the ground when a package is dropped over the side. (a) How long does the package take to reach the ground? (b) With what speed does it hit the ground?
What is velocity curve between two times
A house painter uses the chair and pulley arrangement of the figure to lift himself up the side of the house. With what force must he pull down on the rope
A rock is thrown vertically upward with a speed of 14.0m/s from the roof of a building that is 50.0 m above the ground. Assume free fall. In how many seconds after being thrown does the rock strike the ground? What is the speed of the rock just befor..
Two shuffleboard disks of equal mass, one orange and the other yellow, are involved in an elastic, glancing collision. Determine the final speed of each disk
Late one night on a highway, a car speeds by you and fades into the distance. Under these conditions the pupils of your eyes have diameters of about 7.1 mm. How far away from you is this car
Block A in the figure weighs 1.60 N and block B weighs 3.10 N. The coefficient of kinetic friction between all surfaces is 0.300. Illustrate what is the friction force on block A?
The drawing shows three materials, a, b, and c. A ray of light strikes the a–b interface at an angle that now barely exceeds its critical angle of 40.0°. The reflected ray then strikes the a–c interface at an angle of incidence that now barely exceed..
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