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3 years ago

Two examples of a stopping motion

2 answers:

7 0

Add the ball going at a fast speed then slowing down and coming to a complete stop.

Then you will have a car going down a slope the the speed of the car will slow down to the minimum speed of 0.

So these two will be used as examples of stopping motion

Anton [14]3 years ago

5 0

Pause?Freeze?
Stop?
Halt?

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A mother and daughter are on a seesaw in the park. How far from the center must the 160.9lb mother sit in order to balance the 6

Soloha48 [4]

Answer:

The mother has to sit 2.17 ft from the center on the other side of the seesaw.

Explanation:

We are trying to find the sum of torques given by the weights of mother and daughter to be zero.

If the torque of the daughter on one side of the pivoting point is given by:

5.5 ft x 63.5 lb x g = 349.25 g ft lb

we need that the absolute value of the torque exerted by the mom (160.9 lb) to be the same in magnitude (and of course opposite direction). So we assume that "d" is the distance at which the mother locates to make this torque equal in magnitude to her daughter's torque:

d x 160.9 lb x g = 349.25 g ft lb

d = 2.17 ft

3 0

3 years ago

Which of these statements is most likely correct about the Nebular theory of formation of planets?

exis [7]

Correct answer is D.

Explanation:
A) is not correct answer because this type of theory can not become law. Laws are properties that are same in any part of universe. Nebular theory is not correct for every part of universe.

B) is not correct answer because this theory could be replaced if some evidence show that some other theory is more likely to be correct.

C) is not correct answer because the study has been done on other nebulas in our galaxy. There are many nebulas and by obserwing them this theory was developed.

4 0

3 years ago

When you approach a yield sign, while trying to enter or merge onto another road, traffic already on that road has the right of

kogti [31]

TRUE. When you approach a yield sign, while trying to enter or merge onto another road, traffic already on that road has the right of way.

5 0

3 years ago

Read 2 more answers

The Volts are the ________________

Vera_Pavlovna [14]

People who went out and sailed on the sea and then they went on missions

8 0

3 years ago

Choose all facts that increase the orbital velocity of a vessel around planet B. Bigger mass of planet B smaller mass of planet

telo118 [61]

Answer:

- Bigger mass of planet B

- orbiting closer to planet B

Explanation:

The orbital velocity of the vessel around the planet can be found by equalizing the force of gravity between the vessel and the planet and the centripetal force:

$G\frac{mM}{r^2}=m\frac{v^2}{r}$

where

G is the gravitational constant

m is the mass of the vessel

M is the mass of the planet

r is the distance between the vessel and the centre of the planet

v is the orbital velocity of the vessel

Re-arranging the formula, we find an expression for v:

$v=\sqrt{\frac{GM}{r}}$

We see that:

- the bigger the mass of the planet, M, the bigger the velocity

- the bigger the distance between the vessel and the planet, r, the smaller the velocity

So, the correct choices that increase the orbital velocity are:

- Bigger mass of planet B

- orbiting closer to planet B

6 0

3 years ago