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2 years ago

What is the ratio between KE and velocity?

1 answer:

8 0

Kinetic Energy (KE) is equal to half of an object's mass (1/2*m), multiplied by the velocity squared.

This would be represented by the equation:
Ek = 1/2*mv^2

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Solve x: 60 pts if u can figure it out and the first one gets brainiest answer

jenyasd209 [6]

Answer:

11.65

Step-by-step explanation:

3x+99x=102x

1188/102=11.65

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2 years ago

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Chris works in a tall building in downtown Columbia. We are going to view this skyscraper as a line segment. The building has an

iren [92.7K]

Answer:

A at the top of the building, and an endpoint C at the front door. The building is 43 stories tall. So we know that the length of AC 43 Chris works at point

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2 years ago

2.) Find the measure of exterior angle X:

Oxana [17]

ANSWER:
try 110 , sorry if that’s wrong

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2 years ago

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If a spring stretches 6 meters when a 7-kilogram weight is attached to it, how much will it stretch when a 42-kilogram weight is

Zinaida [17]

Answer:

Step-by-step explanation:

This is a simple proportion problems.

7 kilogram weight attache to a spring stretches = 6 meters

1 kilogram would stretch = 6/7 m

Therefore 42 kilograms would stretch = (6/7 x 42)meters

= 36 meters.

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3 years ago

A pizza shop sells three sizes of pizza, and they track how often each size gets ordered along with how much they profit from ea

777dan777 [17]

Answer:

The mean and standard deviation of Y is $6.56 and $2.77 respectively.

Step-by-step explanation:

Consider the provided information.

Let Y represent their profit on a randomly selected pizza with this promotion.

The company is going to run a promotion where customers get $2 off any size pizza.

Therefore, $Y=\text{Profit}-\$2$

$Y=X-\$2$

So the mean will be reduced by 2.

$\mu_Y=\mu_X-\$2$

$\mu_Y =\$ 8.56 - \$2$

$\mu_Y =\$6.56$

If we add or subtract any constant number from a given distribution, then the mean is changed by the same number(i.e constant number) but the standard deviation will remain the same.

Therefore $\sigma_Y=\sigma_X=2.77$

Hence, the mean and standard deviation of Y is $6.56 and $2.77 respectively.

3 0

3 years ago