3 years ago

PLEASE HELP:

Physics

2 answers:

andriy [413]3 years ago

8 0

They are made up of elements- wrong answer

kotegsom [21]3 years ago

3 0

They are made up of elements

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What is the mass of a basketball that has Connecticut energy of 102 J and it's travelling at 5 m/s

Stella [2.4K]

Answer:

8.16Kg

Explanation:

K.E= 1/2 mv²

102=1/2 m 5²

m=8.16 Kg

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2 years ago

A car travels along a straight line at a constant speed of 53.0 mi/h for a distance d and then another distance d in the same di

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A distance of d is covered with 53 mile/hr initially. Time taken to cover this distance t1 = d/53 hour Next distance of d is covered with x mile hours. Time taken to cover this distance t2 = d/x hours. We have average speed = 26.5 mile / hour

= Total distance traveled/ total time taken

= $\frac{2d}{\frac{d}{53}+\frac{d}{x}} = \frac{2}{\frac{1}{53}+\frac{1}{x} } = \frac{106x}{x+53}$

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Anika [276]

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3 years ago

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marissa [1.9K]

Answer:

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Explanation:

Newton's third law

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What is the current in a 120V circuit if the resistance is 20Ω?

Kaylis [27]

We have: $I=\frac{U}{R}=\frac{120}{20}=6A$

ok done. Thank to me :>

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