Physics, 23.10.2020 18:20 uglybruja81
The acceleration due to gravity at Earth’s surface is 9.8 m/s2. Approximately how far from the surface of Earth would an object need to be to experience half of that acceleration? The radius of Earth is 6,378,100 m, and the mass of Earth is 5.97*1024 kg.
Two identical particles have the same mass, and each holds a charge of 1,602*10-19C. What would the mass of each particle need to be for the ratio of the gravitational force to the electrostatic force of the particles to be 1?
Two identical charged objects exert an electrostatic force of 50 N onto each other when they are 125 km apart. What are the charges of the objects?
Two identical objects exert a gravitational force of -0.016 N onto each other when they are 0.25 cm apart. What is the mass of each object?
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What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?
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There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.
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Physics, 22.06.2019 11:20
If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant
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Physics, 22.06.2019 17:30
Does heating a metal wire increase or decrease its electrical resistance? why?
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The acceleration due to gravity at Earth’s surface is 9.8 m/s2. Approximately how far from the surfa...
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