Master Physics with Fun Quizzes & Brain Teasers!

A new planet called "Corus" was discovered by a team of astronomers thatis 60 x 106 km away from Earth. A satellite was launched by a rocket fromEarth to reach Corus. At a specific distance from Corus, the rocket releasesthe satellite to the orbit of the planet. The satellite makes one completerevolution around Corus in 15 Earth days. If Corus has a similar mass toMars, propose a suitable mass of the satellite and estimate:i. ii. Distance between the satellite and the Corus's surfaceSatellite's gravitational acceleration towards the core of CorusGravitational force between the satellite and the CorusMinimum speed of the satellite to orbit Corusiv.
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1) Calculate the centripetal force acting on a 925 kg car as it rounds an unbanked curve with a radius of 75 m at a speed of 22 m/s. 2) A car with a mass of 833 kg rounds an unbanked curve in the road at a speed of 28. 0 m/s. If the radius of the curve is 105 m, what is the average centripetal force exerted on the car? 3) An amusement park ride has a radius of 2. 8 m. If the time of one revolution of a rider is 0. 98 s, what is the speed of the rider? 4) An electron (m=9. 11x10 -31kg) moves in a circle whose radius is 2. 00 x 10 -2m. If the force acting on the electron is 4. 60x10 -14N, what is its speed? 5) A 2. 7x10 3kg satellite orbits the Earth at a distance of 1. 8x10 7m from the Earths centre at a speed of 4. 7x10 3m/s. What force does the Earth exert on the satellite?6) A string can withstand a force of 135 N before breaking. A 2. 0 kg mass is tied to the string and whirled in a horizontal circle with a radius of 1. 10 m. What is the maximum speed that the mass can be whirled at before the string breaks? 7) A motocross rider at the peak of his jump has a speed such that his centripetal acceleration is equal to g. As a result, he does not feel any supporting force from the seat of his bike, which is also accelerating at rate g. Therefore, he feels if there is ni force of gravity on him, a condition described as apparent weightlessness. If the radius of the approximately circular jump is 75. 0 m, what is the speed of the bike?
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Ms. sison is riding his bike and uses 600 joules of energy per minute. if the bike only does 550 joules of work, how efficient is the bike in percent?
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M. bouc believes the italian is the murderer becausea. ) ratchett stole a car from himb. ) ratchett insulted himc. ) he must be a member of the mafiad. ) he has been seen lurking around the safee. ) he has a hot temper
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An airplane and a freight train have the same momentum. The airplane has a mass of 21,700 kg and is traveling at 1,200 km/h. The train has a mass of 9,600,000 kg. What is the speed of the train? Select one:A: 2. 7 km/h B:19. 0 km/hC:25. 0 km/hD: 5. 3 km/h
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What is the weight of car at 25th percentile and 75th percentile? of 1155,1100,1540,1760,1390,90,1610,1305,1685,1425,1365,1655,1465,1515,1130,1440,1275
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An electrically neutral balloon is rubbed on your hair. if your hair loses electrons, the balloon has what type of electric charge?
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A 200-kg machine is attached to the end of a cantilever beam of length L=2. 5 m, elastic modulus E= 200x109 N/m2, and area moment of inertia I = 1. 8x106 m4. Assuming the mass of the beam is small compared to the massof the machine, what is the stiffness of the beam?
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What is the spring constant of this spring?
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During the dilemma what are the thoughts of your mind? What are 2 alternative solutions you implemented to solve the dilemma?
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If all of the gravitation potential energy of the apple on the tree is transferred to the spring when it is compressed. What is the spring constant of this spring?
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A 2 resistor and a 8.0 mh inductor are used in an lr circuit. if the initial current in the circuit is 2.0 a when a switch is thrown that allows the current in the circuit to decay, at what time will the current be 1.0 a?
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A bat is using echolocation in a cave that is 15. 5 degrees Celsius. a. What is the speed of sound in the cave? b. If one of the cave walls was 25m away from the bat, how long would it take for the sounds echo to return to the bat?
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In a circuit, we are using conducting wires made from Manganese If we assume there are 3 free electrons per an atom of manganese, what is itselectron density?
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Marshall paddled his kayak 919meters across a lake at a constant velocity. He moved that distance in 10. 0minutes. What was his velocity?
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how is loudness different from intensity
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An astronaut weighs 8.00 102newtons on thesurface of Earth. What is the weight of the astronaut6.37 106meters above the surface of Earth?
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Object A is traveling at half the speed of light colliding with object B that is stationary. How does object A experience time in comparison to object B and how does object B experience time in comparison to object A before there collision?
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A car is driven 215 km west and then 98 km south west (45 degree). a)what is the displacement of the car from the origin point? b) what is the directions
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Imagine you wanted to launch a satellite so that it traveled in the opposite direction from usual that is east to west rather than the west to east.how fast would the rocket launching that satellite have to travel relative to the launching site , if you launched it from a point on the equator
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Anna mixes 200 g of hot coffee at 90 oC with 50 g of cold water at 3 oC to bring down thetemperature of the coffee. Explain what happens to the mixture using kinetic molecular model.
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Car A and Car B are driving towards each other. Car A's speedometer shows that it is going 60 mph. Car B's speedometer shows that it is going 70 mph. How fast is Car A going relative to a passenger in Car B?
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Estimate the lowest possible kinetic energy of a neutron contained in a typical nucleus of radius 1. 21015m. Use the radius as the uncertainty in position for the neutron. [Hint: Assume a particle can have a kinetic energy as large as its uncertainty. ]
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20. An astronaut weighs 8.00 102newtons on thesurface of Earth. What is the weight of the astronaut6.37 106meters above the surface of Earth?
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