Physics, 26.01.2020 10:31 imthatsavageboi

Rosa uses the formula (vi cos)t to do a calculation. which value is rosa most likely trying to find?

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Answer from: hannahkharel2

The horizontal displacement of a projectile launched at an angle.

Explanation:

If the formula used by Rosa is $v_i\ cos\theta$ where v_i is the initial speed of the object or the velocity with which the object is thrown. There are two component of velocities i.e. horizontal and vertical. If $\theta$ is the angle with horizontal. We know that distance travelled is given by :

$d=v_i\ cos\theta \times t$

So, Rosa is finding the horizontal displacement of a projectile launched at an angle.

Answer from: Quest

Football was the fourth deadliest sport with a fatality rate of .81 per 100,000 participants. cheerleading, which has been shown to be the most dangerous activity based on injury data, was not included in the study because it was not classified as a sport.this is my answer because it didn’t give me any sports

Answer from: Quest

so here is the information for current research:

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and here is the information for the technology of geothermal energy:

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-resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma

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-geothermal heat pumps can tap into this resource to heat and cool buildings

-a geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and a heat exchanger-a system of pipes buried in the shallow ground near the building

-in the winter, the heat pump removes heat from the heat exchanger and pumps it into the indoor air delivery system

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-the heat removed from the indoor air during the summer can also be used to provide a free source of hot water

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