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3 years ago

What is the difference between food and money?

1 answer:

5 0

Food is edible and money isn’t you can buy stuff with money but you can’t buy stuff with food. Food and money have many differences. They are nothing close to similar.

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Spinning satellites are particularly stable. suppose that the astronauts launching a particular satellite decide to increase its

Crank

Supposing velocity is speed and direction, and momentum is mass*velocity, if the velocity increases by a factor of 5, then so should the momentum regardless of the whole space thing.

3 0

4 years ago

A uniform meter rule of weight 0.9N is suspended horizontally by two vertical loops of thread A and B placed 20cm and 30cm from

Rzqust [24]

The distance from the centre of the rule at which a 2N weight must be suspend from A is 29.3 cm.

<h3>Distance from the center of the meter rule</h3>

The distance from the centre of the rule at which a 2N weight must be suspend from A is calculated as follows;

-----------------------------------------------------------------

20 A (30 - x)↓ x ↓ 20 cm B 30 cm

2N 0.9N

Let the center of the meter rule = 50 cm

take moment about the center;

2(30 - x) + 0.9(x)(30 - x) = 0.9(20)

(30 - x)(2 + 0.9x) = 18

60 + 27x - 2x - 0.9x² = 18

60 + 25x - 0.9x² = 18

0.9x² - 25x - 42 = 0

x = 29.3 cm

Thus, the distance from the centre of the rule at which a 2N weight must be suspend from A is 29.3 cm.

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7 0

2 years ago

Read 2 more answers

Please left home at 8 AM to spend the day at in amusement park. He arrived at the park, which was 150 KM from his house, at 10 A

antiseptic1488 [7]

Answer:

$v=\frac{150km}{2h}=75\frac{km}{h}$

Explanation:

We can use the equation for the speed

$v=\frac{x}{t}$

where x is the distance and t the time. In this case we know that the time spent was 2 hours and the distance was 150km. By replacing we have

$v=\frac{150km}{2h}=75\frac{km}{h}$

I hope this useful for you

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3 0

3 years ago

Two children are riding on a merry-go-round that is rotating with a constant angular speed. Abbie is one meter from the center o

klio [65]

Answer:

The acceleration of Abbie is half of the Zak's.

Explanation:

The centripetal acceleration of an object on a circular path is given by :

$a=r\omega^2$

Two children are riding on a merry-go-round that is rotating with a constant angular speed. Let $r_1$ is distance of Abbie from the merry-go-round and $r_2$ is distance of Zak's from the merry-go-round. Acceleration of Abbie is :