Physics Questions

A sea breeze occurs because warm air rises on land and moves toward the ocean to cool. The cool air then moves from the ocean to be warmed by the land. a. Trueb. False
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on a small planet, an astronaut uses a vertical force of 175 newton to lift an 87.5 kg boulder at constant velocity to height of 0.350 meter above the planet's surface. What is the magnitude of the gravitation field strenght on the surface of the planet
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What is the Galaxy we live in called?
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Explain the difference between a conductor and an insulator. Give two examples of each.
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How small are the wavelengths of gamma ray radiation? A. smaller than an atom B. about the size of a golf ball C. about 10 times the size of an atom D. about the size of earth **:( thank you!!
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Are mushrooms, producers, consumers, or decomposers?
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Which of these is an illuminated source of light? A. the sun B. a star C. the earth seen from the moon D. a meteorite as it burns up in the atmosphere ***ooh i don't know this one at all! thank you!!
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Which change decreases the resistance of a pieceof copper wire?(1) increasing the wire’s length(2) increasing the wire’s resistivity(3) decreasing the wire’s temperature(4) decreasing the wire’s diameter
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Sound waves are produced by the horn of a truckthat is approaching a stationary observer.Compared to the sound waves detected by thedriver of the truck, the sound waves detected bythe observer have a greater(1) wavelength (3) period(2) frequency (4) speed
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What happens in a chemical reaction?
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A periodic wave has a fixed pattern that is repeated. What is one completion of the wave pattern called?a) periodb) frequencyc) amplituded)cyclee) phase
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An earthquake creates a type of wave that shakes the ground. If a large earthquake occurs in Greece, how can the waves be felt across the sea in Italy?
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A stuntman jumps from the roof of a building to the safety net below. How far has the stuntman fallen after 1.6 seconds?
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One degree Celsius indicates the same temperature change as?A. One degree Fahrenheit B. 5/9 degree Fahrenheit C. One Kelvin D. 9/5 Kelvin
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A car's velocity changes from 32m/s to 96m/s in an 8.0-s period. what is its acceleration?
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What is 3a b2 b3 4b2 4 5a identify like terms
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an apple in a tree has a gravitational potential energy of 175J and a mass of 0.36g . how high from the ground is the apple
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According to Newton's third law of motion, if you push against a wall, the wall will __________.a. attract you with its low gravityb. fall over once you overcome its inertiac. push against you with equal forced. heat up due to energy transfer
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