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A circular saw blade 0.200 m in diameter starts from rest. In 8.00 s, it reaches an angular velocity of 150 rad/s with constant angular acceleration.
Part A: Find the angular acceleration and the angle through which the blade has turned in this time.
A 3.4 kg piece of aluminum at 28°C is placed in 1.0 kg of water in a Styrofoam container at room temperature (20°C)
A helium atom (m= 6.6465 x 10^-27 kg) collides elastically with an oxygen atom (m = 2.6560x10^26kg) at rest. Find the speed of the oxygen atom
Consider a fusion reaction in which a proton fuses with a neutron to form a deuterium nucleus. How much energy is released in this reaction
A physics lecture room has a volume of 251m^3. Calculate the mass of the air in the room
imagine that you spill a cup (250 g) hot water, initially at 75 C, onto the cold ground on a winter fay, Calculate the net change in the entropy of the universe due to this process, and comment on the result
A garden hose having an internal diameter of 0.720 in. ( 1.8288 cm ) is connected to a lawn sprinkler that consists merely of an enclosure with 36 holes, at what speed does it leave the sprinkler holes
What is the phase angle in an RLC circuit with resistance of 9.90 k?, capacitance 1.50 ?F, and inductance 250 mH
A charge q1 = -7 µC is at the origin, and feels a force along the positive x-axis equal to 1.8 N. What is the x-component of the electric field
Two point charges 3.0cm apart have an electric potential energy -130J . The total charge is 15nC. What is the lesser charge
A 7 kg sled is initially at rest on a horizontal road. determine the change in the kinetic energy of the sled
Two particles of masses m and 3m are moving toward each other along the x-axis with the same speed v. Determine the final speed of the heavier object
The Sun emits electromagnetic waves (including light) equally in all directions. At what rate does the Sun emit electromagnetic waves
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