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A 78.0-kilogram child starts from rest from the top of a frictionless slide that is 5.4 meters tall. The bottom of the slide is 28.6 centimetres above the ground. The kinetic friction is a constant 116. 0newtons and acts over the 5.0 meter length of the slide.
What is the child's speed at the bottom of the slide?
a distant galaxy emits light that has a wavelength of 479.2 nm. on earth the wavelength of this light is measured to be
Estimation instantaneous rate of evaporation
A slit 0.240mm wide is illuminated by parallel light rays with a wavelength 540nm. What is the distance on the screen from the center of the central maximum to the first minimum
An unknown mass is hung from a very light spring with a spring constant of 19 N/m. evaluate what is the unknown mass
Someone standing at the edge of a cliff throws one ball straight up and another ball straight down at the same initial speed. Neglecting air resistance, the ball to hit the ground below the cliff by the greater speed will be the one thrown downward.
A loud speaker has an input of 73 dB. If the volume of the sound is turned up therefore that the output intensity is 10 times greater, what is the new sound intensity level? -----dB
A particle with charge Q = 4.70 µC is located at the center of a cube of edge L = 0.200 m. In addition, six other identical charged particles having q = -1.5 µC are positioned symmetrically around Q as shown in the figure below. Determine the electri..
a ball is thrown vertically upward with a speed of 13.0 ms.a how high does it rise?your response differs significantly
You take the elevator to the roof of midtown skyscraper that is 100 meters high. What was the velocity of your souvenir just before it hit the ground
One cubic meter of water flowing over Niagara Falls in New York drops 92.8 meters. how much heat energy would the water have
The Earth has a surface temperature around 270 K and an emissivity of 0.8, while space has a temperature of around 2 K. If the Earth is in thermal equilibrium, how much power must the Earth absorb from the Sun
A bit of computer memory is some physical object that can be in twodifferent states, often interpreted as 0 and 1. A byte is eightbits, a kilobyte is 1024 bytes.
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