I have multiple questions!

Physics

1 answer:

UNO [17]3 years ago

3 0

I'm not sure about the rest but for question 2:

A theory is an attempt to come up with a big picture of all we know so far. It also drives future research as people do experiments to see if what the theory predicts actually happens. When experiments don’t support the theory, you have to change the theory and try again. That’s how science works. We come up with a “best guess” (theory), and then do research to test it’s accuracy. As we discover contradictions, we adjust the theory to take those into account, and then start testing the validity of the new theory.

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A ball is released from a hot air balloon moving downward with a velocity of -10.0 meters/second and a height of 1,000 meters. H

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Here, ball is released... and it is in free fall means with zero initial velocity.

We know, s = ut + 1/2 at²
Here, s = 1000 m
u = 0
a = 10 m/s2

Substitute their values,
1000 = 0 + 1/2 * 10 * t²
2000 = 10 * t²
t² = 2000 /10
t = √200
t = 14.14 s

In short, Your Answer would be 14.14 seconds

Hope this helps!

7 0

3 years ago

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motikmotik

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3 years ago

How does the force of gravity affect the rate of acceleration?

Vesnalui [34]

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3 years ago

You find yourself in a place that is unimaginably hot and dense. A rapidly changing gravitational field randomly warps space and

Marta_Voda [28]

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To learn more about Plank time:

brainly.com/question/23791066

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8 0

2 years ago

The radius of the wheel is 40cm and the radius of the

snow_tiger [21]

Answer:

M.A = load/ effort

1200N/400N

= 3

velocity ratio= radius of wheel/radius of Axle

40cm/10cm

efficiency= 3/4*100

75%

4 0

2 years ago