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Miles Tugo is camping in Glacier National Park. In the midst of a glacier canyon, he makes a loud holler. He hears an echo 1.22 seconds later. The air temperature is 20 degrees C. How far away are the canyon walls?
In frame S, event B occurs 2 microseconds after event A and event A occurs at the origion whereas event B on the x-axis at x=3.3km. How fast must an observer be traveling along the +x axis
Suppose an astronomical telescope is being designed to have an angular magnification of 31.6. If the focal length of the objective lens being used is 98.0 cm, find the required focal length of the eyepiece and the distance between the two lenses f..
Two spaceships approach Earth with equal speeds, as measured by an observer on Earth, but from opposite directions. A meterstick on one spaceship is measured to be 60 cm long by an occupant of the other spaceship. What is the speed of each spaceship,..
A hot iron horseshoe (mass = 0.50- kg) which has just been forged, is dropped into 1.45 -L of water in a 0.50 kg iron pot at first at 22oC. If the final equilibrium temperature is 32oC, calculate the initial temperature of the hot horseshoe (in Ce..
A 0.80kg ball, attached to the end of a horizontal cord, is rotated in a circle of radius 1.1m on a frictionless horizontal surface. what is the maximum speed the ball can have
A 1800·kg car traveling with a velocity of 15·m/s north collides head-on with a 3600·kg truck traveling with a velocity of 20·m/s south. what is the velocity of the truck immediately after the collision
A hockey puck with mass 0.160kg is at rest on the horizontal, frictionless surface of a rink. What is the position of the puck at the end of that time
Although the cross-sectional area of a capillary is much smaller than that of the aorta, there are many capillaries, so their total cross-sectional area is much larger. calculate the total cross-sectional area of the capillaries
A uniform 1.7-kg rod that is 0.97 m long is suspended at rest from the ceiling by two springs, one at each end. Both springs hang straight down from the ceiling. The springs have identical lengths when they are unstretched. Their spring constants are..
A supertrain of proper length 200 m travels at a speed of 0.9 times the speed of light (relative to the tunnel) as it passes through a tunnel having proper length 80 m. how much longer is the train than the tunnel
A particular satellite was placed in a circular orbit about 153 mi above Earth. Determine the time required for one complete revolution
You are in a laboratory and investigating properties of a converging lens. Calculate how far the image is from the lens
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