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What linear speed must an Earth satellite have to be in a circular orbit at an altitude of 206 km above Earth's surface?
What is the period of revolution?
The frequency of an opera singer is 450 Hz. Assume the speed of sound in air is 340 m/s. What is the frequency heard by an observer who is running down the road towards the opera singer with a speed 25.0 m/s.
It is 156 cm from your eyes to your toes. You're standing 212 cm in front of a tall mirror. How far is it from your eyes to the image of your toes
A thin film of soap (n = 1.35) is floating in air. If light of wavelength 600 nm is missing from the reflected light, what is the minimum thickness of the soap
A car is driving directly north on the freeway at a speed of 106 km/h and a truck is leaving the freeway driving 91 km/h in a direction that is 40° west of north. What is the velocity of the truck relative to the car
Two small metallic spheres, each of mass m = 0.40 g, are suspended as pendulums by light strings from a common point, what is the magnitude of the charge on each sphere
A racecar travelling at a constant speed turns in a circle with a radius of 10 m. what is the racecar's speed
A box is pushed across the floor, slide with a constant velocity, and is opposed by a friction force of 25N. What is the magnitude of the force? Choose the correct answer. A.Less than 25N B.Zero C.Greater than 25N D.25n
Suppose you place your face in front of a concave mirror. Which one of the following statements is correct?
A dentist uses a mirror to examine a tooth that is 0.75 cm in front of the mirror. The image of the tooth is formed 14.0 cm behind the mirror. Determine the magnification of the image
How fast (in {rm rpm}) must a centrifuge rotate if a particle 8.5 cm from the axis of rotation is to experience an acceleration of 115000 {rm g}'s.
When a pulse is amplified in a linear amplifier, the charge carrier transmit time can cause.
A 0.33kg block is located 0.2 m from the center of a turntable. The coefficient of static friction between block and surface of the turntable is 0.44.
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