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The human brain consumes about 22 W of power under normal conditions, though more power may be needed during exams.(a) How long can one Snickers bar (280 Cal per bar) power the normally functioning brain? (b) At what rate should you lift a 3.6-kg container of milk (one gallon) if the power output of your arm is to be 22 W? (c) How long does it take to lift the milk container during a distance of 1.0 m at this rate?
two long parallel wires each carry a current of 5.0 a directed to the east. the two wires are separated by 8.0 cm. what
Three polarizing plates whose planes are parallel are centered on a common axis. The directions of the transmission axes relative to the common vertical direction, Calculate the transmitted intensity
Suppose the light bulb in the figure below is replaced with a short wire of zero resistance, and the resistance of the rails is negligible, What is the current in the rod
A galago, a very small primate, can extend its legs by about 16 cm during a jump, during which it accelerates at 140 m/s2. Which can jump higher
The light shining on a diffraction grating has a wavelength of 490 nm (in vacuum). How many lines per centimeter does the grating have
question1the westin stamford hotel in detroit is 228 m tall. assume a piece of ice that initially has a temperature of
You throw a 151 g ball straight up to a height of 43.0 m. Calculate the average force exerted by your hand while you are throwing it
The magnetic field due to a 2-A current flowing in a long, straight wire is 8 %u03BCT at a point P, a certain distanceaway from the wire
Two forces, 375 N at 11deg and 323 N at 25deg are applied to a car in an effort to accelerate it. If the car has a mass of 3730kg, what magnitiude of acceleration does it have
2 crewmen pull a raft, 1 crewman pulls with a force of 130 newtons at 34 degreees relative to the forward position on the raft. the 2nd crewman on the opposite side pulls at 45 degrees. Illustrate what force should the 2nd crewman pull so that the..
Find the rotational frequency of the wheel.
A .060-kg tennis ball, initially moving 5.50 m/s, has a head on collision with a .090-kg ball initially moving in the same direction, determine the Speed and direction of each ball after collision
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