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3 years ago

5

Assuming that the hill on the left will provide all of the potential energy for the ride, would this roller coaster actually mak

e it around the loop?
Thanks!

1 answer:

trapecia [35]3 years ago

3 0

Yes I believe it would I think the answer is D

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What is the purpose of oil used in a car's engine?

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B) to reduce friction

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2 years ago

An astronaut exploring a distant solar system lands on an unnamed planet with a radius of 2530 km. When the astronaut jumps upwa

Natali [406]

Answer:

1.38*10^18 kg

Explanation:

According to the Newton's law of universal gravitation:

$F=G*\frac{m_a*m_p}{r^2}$

where:

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ma= mass of the astronaut

mp= mass of the planet

$F=m_a.a\\(v_f )^2=(v_o)^2+2.a.\Delta y\\\\a=\frac{(v_f)^2-(v_o)^2}{2.\Delta y}\\\\a=\frac{(0)^2-(4.29m/s)^2}{2.0.64m}=14.38m/s^2\\\\F=m_a*14.38m/s^2$

so:

$m_a*14.38m/s^2=(6.674*10^{-11}N.(m/kg)^2)*\frac{m_a.m_p}{(2.530*10^3m)^2}\\m_p=\frac{14.38m/s^2(2.530*10^3m)^2}{(6.674*10^{-11}N.(m/kg)^2)}\\\\m_p=1.38*10^{18}kg$

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3 years ago

Julie wants to know if adding calcium fertilizer to tomato plants will help prevent a disease of tomato plants called blossom-en

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3 years ago

The periodic wave in the diagram below has a frequency of 80. hertz.

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Answer:

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2) 5/8

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2 years ago

Anyone know how to solve this? 4+9×2÷3−1

Nutka1998 [239]

You want to use PEMDAS to solve this equation.

4+9*2/3-1

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4+6-1

10-1

9

Your answer is 9

Thanks -John

If you have anymore question just ask! :)

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3 years ago