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1.) An object 4.50 cm high is held 2.00 cm from a person's cornea, and its reflected image is measured to be 0.3 cm high.
A. What is the magnification?
B. Where is the image?
A 20 g bullet traveling at 300 m/s is shot into a 4.0 kg block at rest on a frictionless horizontal surface. What is the speed of the block right after shooting
Find the quadratic equation for the distance, D, in terms of the time, the acceleration due to gravity, and the speed of sound. Arrange the expression.
Kelli weighs 417 N, and she is sitting on a playground swing that hangs 0.44 m above the ground. Her mom pulls the swing back and releases it when the seat is 1.00 m above the ground. Imagine that air resistance is negligible.
The wing of an airplane has an average cross-sectional area of 15 m2 and experiences a lift force of 65,000 Newton. Find the average difference in the air pressure (in N/m2) between the top and bottom of the wing
A canoe has a velocity of 0.35m/s southeast relative to the earth. Find the direction of the velocity of the canoe relative to the river
holding these two strips togeather they will repel each other. assume the average lencth 10cm of the tapes is half
The period of the simple harmonis oscillator is 2.00 s. When the given clock reads time t= 0.206s, the velocity of the oscillator is -.314 m/s. find the position of the oscillator when t= 5.00s.
What pressure does a diver experience at a depth of 25.0m in the ocean? The density of sea water is 1025kg/m^3, and 1atm=1.01×10^5 pa.
The corroded contacts in a lightbulb socket have 8.3Ω total resistance. How much actual power is dissipated by a 110 W (120 V) lightbulb screwed into this socket? Express your answer using two significant figures.
One terminal of a car battery is said to be connected to "ground" since it is not really connected to the ground. What is meant by this experssion
What value should m have so the masses won't accelerate? Now take μk = 0.15 on all surfaces and m = 1.1 kg . What will be the acceleration of both masses? Show the force diagram for each.
You've entered the Great Space Race. Your engines are hearty enough to keep you in second place. While racing, the person in front of you begins to have engine troubles and turns on his emergency lights that emit at a frequency of 5.590 multiply.g..
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