Master Physics with Fun Quizzes & Brain Teasers!

Gravity pulled materials together forming the planets in our solar system. The inner planets consist of dense material, such as iron, which was pulled to the center of the planets. Materials such as ice, liquid and gas formed the outer planets. Scientist identify this process as:.
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Explain how a raccoon is helping the environment when it eats the fruit of a plant.
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what must be the distance between two 0.800 kg balls if the magnitude of the gravitational between them is equal to that in sample problem C?1.25 x10^{22} kg 1.20 x 10^{6} m
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A Carnot engine performs 2.5 * 104 J of work in each cycle and has an efficiency of 66%. (a) How much heat does the engine extract from its heat source in each cycle? (b) If the engine exhausts heat at room temperature 120.0C2, what is the temperature of its heat source? A Carnot engine performs 2.5 * 104 J of work in each cycle and has an efficiency of 66%. (a) How much heat does the engine extract from its heat source in each cycle? (b) If the engine exhausts heat at room temperature (20.0C), what is the temperature of its heat source?
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During the hammer throw at a track meet, an 8.0 kg hammer is accidentally thrown straight up. If 784.0 J ofwork were done on the hammer to give it vertical velocity, how high will it rise?
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What is the net force and direction shown in the diagram below:35 N25 N55N to the right10N to the left10N to the right55N to the left
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A toy car with a mass of 3.1 kg has 60 J of kinetic energy as it drives along the straight part of a racetrack. What is the velocity of the car?
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in the bohr model, what is the ratio of its kinetic energy to its potential energy?
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what about an atom can we learn by studying the bohr model?
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A ball accelerates at a rate of 5 m/s2 when a 25 N force is applied to it. If the sameamount of force is applied to a 7 kg ball, what will happen to the ball's acceleration?
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A speed word problem where the answer is 14 HELP TIMED
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.Which equation represents the most accurate model of cellular respiration? Note: C6H12O6 is sugar. 6CO2 + 6H2O + sunlight 6O2 + C6H12O6 carbon dioxide + water + sunlight oxygen + sugar6CO 2 + 6H 2 O + sunlight 6O 2 + C 6 H 12 O 6 , , carbon dioxide + water + sunlight oxygen + sugar,CO2 + H2O + energy O2 + C6H12O6 +CO2carbon dioxide + water + energy oxygen + sugar + carbon dioxideCO 2 + H 2 O + energy O 2 + C 6 H 12 O 6 +CO 2, , carbon dioxide + water + energy oxygen + sugar + carbon dioxide,C6H12O6 6CO2 + 6H2O + 6O2 + energysugar carbon dioxide + water + oxygen + energyC 6 H 12 O 6 6CO 2 + 6H 2 O + 6O 2 + energy, , sugar carbon dioxide + water + oxygen + energy,C6H12O6 + 6O2 6CO2 + 6H2O + energysugar + oxygen carbon dioxide + water + energy
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In the aftermath of an intense earthquake, the earth as a whole "rings" with a period of 54 minutes.What is the frequency of this oscillation?Express your answer in hertz.
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What is the resistance of a light bulb if a potential difference of 120 V will produce a current of 0. 5 A in the bulb? 0. 0042 0. 5 60 240.
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Satellite A is orbiting Earth at an altitude of 500 km and Satellite B is orbiting 800 km above the surface . How does the velocity of Satellite A compare to the velocity of Satellite B ?
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What is the energy equivalent of an object with a mass of 2. 5 kg? 5. 5 108 J 7. 5 108 J 3. 6 1016 J 2. 25 1017 J.
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The mass of Jupiter is 4 x 1023 kg. If the mass of the Sun is 2 x 1030 kg and the sun and Jupiter are 7 x 1011 m apart, what is the force of gravity between the two?
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What is the wavelength of a wave that has a speed of 160 m/s and a period of 3.7 ms?
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A 1 kg apple and a 2 kg baseball are 2 m apart. What is the force of gravity between each fruit?
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If a 2500 kg car is traveling with an acceleration of 20.2 m/s/s, what is the force acting on it?
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A car covers 72 kilometers in the first hour of its journey. In the next hour, it covers 90 kilometers. What is the amount of work done by the car? The total mass of the car, including its passengers, is 2. 5 103 kilograms. A. 2. 8 105 joules B. 4. 0 105 joules C. 5. 1 105 joules D. 2. 8 106 joules E. 2. 8 107 joules.
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Oh lawd, pls help-I dont understand this and dont really pay attention-
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which has the higher frequency, red light or blue light?
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which famous scientist is associated with the force of gravity?
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