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A bird watcher meanders through the woods, walking 0.261 km due east, 0.315 km due south, and 1.74 km in a direction 72.5 ° north of west. The time required for this trip is 0.8155 h. Determine the magnitudes of the bird watcher's
(a) displacement and
(b) average velocity.
At the instant the car begins to accelerate, a truck with a constant velocity of 21 m/s passes in the next lane. Explain how far will the car travel before it overtakes the truck?
The current in a coil drops from 3.1 A to 2.6 A in 0.53 s. If the average emf induced in the coil is 12 mV, what is the self-inductance of the coil
while the surface temperature can reach 320K. These data imply that Venus has a "thicker" atmosphere at its surface than does the earth that means that the number of molecules per unit volume (N/V) is greater on the surface of Venus than on the ea..
Expalin how many revolutions will the car have gone through when the magnitude of its total acceleration is 2.00 m/s^2?
The bullet passes through the block and emerges with its speed reduced to 100 m/s. The block slides a distance of 0.10 m along the surface from its initial position. Illustrate what is the coefficient of kinetic friction between block and surface?
A 4.5- kg box of books is pulled up a 3.66- m-long inclined plank to a height of 1.4 m. What percent of the work is lost to friction
A small ball is located at the origin and has as charge of +3.9 nC. At a distance of 5.8 cm the electric field has a magnitude of 10422 N/C. What is the direction of the electric field, away or toward the ball
One afternoon, you are playing on a wooden basketball court with a hula?hoop to amuse yourself. The hoop has a mass of 500g and a radius of 55 cm. What is the hoop's speed just before it hits the wall
A dolphin leaps out of the water at the angle of 46° above the horizontal. The horizontal component of the dolphin's velocity is 9.40 m/s. Find out the magnitude of the vertical component of velocity.
0.100kg stone rests on a frictionless, horizontal surface. A bullet of mass 9.00g , find the magnitude of Daniel's velocity after the collision
A typical coal-fired power plant burns 340 metric tons of coal every hour to generate 750MW of electricity. 1 metric ton= 1000 kg. What is the power plant's thermal efficiency
Two balls attached to strings have the same mass and volume, but are made of different materials. Which ball excerts a geater net force on the block
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