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Question1
The pilot of a plane measures an air velocity of 186 km/h south. An observer on ground sees the plane pass overhead at a velocity of 102 km/h toward the north. What is velocity of wind that is moving the plane? Let north be positive. Answer in units of km/h.
Question2
Generally, 80.0 percent of energy produced by metabolism goes into heat, as the rest goes into things like pumping blood and repairing cells. Also in general, a person at rest is able to get rid of this excess heat just through radiation. Utilize answer to find this person's basal metabolic rate?
The rms current in a copy machine is 7.50 A, and the resistance of the machine is 14.4 ?. What is the peak power delivered to the machine?
A thin ring of radius R carries a charge 3Qdistributed uniformly over three-fourths of its circumference, and -Q over the rest
Calculate the magnetic force per meter between two such lightning bolts separated by 10 meters. (This is mainly to give a feeling for the strength of the magnetic field)
Consider the system of capacitors shown in the figure below (C1= 2.00 uF, C2= 3.00 uF). Find the total energy stored by the group
A 81.0 skydiver can be modeled as a rectangular "box" with dimensions 18.0x 44.0 x 185. What is his terminal speed if he falls feet first
A motorcycle and a police car are moving in the same direction, with the motorcycle in the lead. What frequency does the motorcyclist hear
Consider a fish of average size swimming near the bottom of a lake of depth 46 m. What is the water pressure next to the fish
Blocks with masses of 4.0, 8.0, and 9.0 are lined up in a row on a frictionless table. All three are pushed forward by a 16 force applied to the 4.0 block. How much force does the 8.0 block exert on the 8.0 block.
A 0.43-kg metal sphere oscillates at the end of a vertical spring. As the spring stretches from 0.12 m to 0.23 m, What is the spring constant of the spring
A child playing in a swimming pool realizes that it is easy to push a small inflated ball under the surface of the water while a large ball requires a lot of force
A transformer with a turns ratio (secondary/primary) of 1:11 is used to step down the voltage, determine the voltage supplied to the recharger
An aluminum wire having a cross-sectional area equal to 5.10 10-6 m2 carries a current of 3.50 A. Find the drift speed of the electrons in the wire
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