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Vera_Pavlovna [14]
3 years ago
8

Body mass index (bm) is a measure of body weight relative

Physics
1 answer:
kow [346]3 years ago
8 0
BMI is a measure of body fat determined by ones Height, Weight, and Gender.

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Explain how a hydroelectric power plant converts energy stored in water into electricity
mart [117]
Hot water, as in very hot water, goes to steam with an enormous change in volume and pressure. This is capable of driving turbine blades, which in turn rotate enormous copper (eg) wired coils in enormous magnetic fields. This in turn produces electricity via electromagnetic induction and Fleming's right hand (I think it is) DYNAMO rule. That goes down miles and mile of v heavy conducting wire/cable as electricity.
4 0
4 years ago
Copy the diagram. add a voltmeter to show how you would measure the voltage of the cell
Kruka [31]

Answer: the answer is 23voltage

Explanation: because the voltage and time put together is 23

7 0
3 years ago
Why can’t we see the molecules moving in a solid or liquid?
harina [27]

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Because molecules are to small for us people to see with the bare eye, unless you use a telescope.

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5 0
3 years ago
Read 2 more answers
Give a qualitative description of the skydiver's motion after jumping out of the plane.​
umka2103 [35]

Explanation:

They will have not much control over their speed or rotational energy. they will carry a lot of gravitation potential energy which will get converted to kinetic energy as they fall through the atmosphere. They will reach their terminal velocity, the fastest they can travel with earth's gravity before they pull their parachute, when they use a parachute to extend their surface area, increasing wind resistance. this allows them to land safely.

6 0
2 years ago
A car is driving northwest at v mph across a sloping plain whose height, in feet above sea level, at a point n miles north and e
coldgirl [10]
Refer to the diagram shown.

Given:
h(n,e) = 1500 + 75n + 50e

Define 
\hat{r} = unit \, vector \, along \, \vec{v} \\ \hat{i} = unit \, vector \, east \\ \hat{j} = unit \, vector \, north \\ \nabla \equiv \hat{i}  \frac{\partial}{\partial e} + \hat{j}  \frac{\partial}{\partial n}

\hat{r} =  \frac{1}{ \sqrt{2} } (-\hat{i}+\hat{j} )

Then the rate of change of h with respect to the vector v is
\nabla h . \hat{r} = \frac{1}{\sqrt{2}}(50\hat{i} + 75\hat{j}).(-\hat{i}+\hat{j}) = \frac{1}{\sqrt{2}} (-50+75) =17.68

Answer: 17.7 ft per mile

3 0
3 years ago
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