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An aluminum block slides along a horizontal surface. the block has an initial speed of 11.3 m/s and an initial terperature of 10.4 *C. The block eventually slides to rest due to friction. Assuming all the initial kinetic energy is converted to heat energy and all this energy stays in the block, what is the final temperature?
A 0.25 m long wrench is placed around a bolt and a 20 N force is applied halfway along the wrench at an angle of 30 degrees, What is the torque (in Nm) applied to the bolt from this force
a small diameter 61-cm long solenoid has 280 turns and is connected in series with a resistor of 184 ohm. calculate
A circular wire loop of radius is 16.0 cm carries a current of 2.80 A. What is the magnitude of the torque acting on the loop
1.collect 10 resources other than your textbook from popular science magazines including discover scientific american
A cylinder of length l, radius r, and mass m is constrained to rotate with constant angular velocity ? about an axis passing through the center O of the cylinder and making an angle a with the long axis of the cyclinder.
The 2.4m Hubble space telescope has been placed into Earth orbit by the same space shuttle. What angular resolution could this telescope achieve by Rayleigh's criterion
If you stand next to a wall on a frictionless skateboard and pushthe wall with a force of 30 newtons, how hard does the wall push on you
The velocity of an airplane with respect to the ground is 2.00 x 102 m/s at an angle of 30.0 degrees NORTH of EAST. find the velocity of the air with respect to the ground
a wooden carving has 1/2 g of carbon in it and the 14C decay rate has been measured to be 4 decays/min. how old is the carving
A certain EM wave has a wavelength of 4 X 10 ^-7 m and a speed of 2.5 X10^8 m/s in a partcular material ( not a vacuum). what is the wavelength of this wave in a vacuum
Pale uses straight-line depreciation and useful lives of 40 years and 10 years for the building and equipment, respectively, with no estimated residual values. Give journal entry that Pale recorded when it transferred the assets to Bright.
q1. what fraction of the power radiated by the sun is intercepted by the planet mercury? the radius of mercury is 2.44
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