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4 years ago

HOW FAR IS THE MOON? [COVER UP QUESTION BORED}

Physics

2 answers:

Bad White [126]4 years ago

4 0

238,900 miles exactly

denis-greek [22]4 years ago

3 0

Hi there!

From planet Earth, the moon is about 238,900 miles away from us. It's really far!

I'm glad I was able to help!

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Will water pressure be greater 1 meter below a lake or 1 meter below the ocean?

Finger [1]

The answer is "No" .
The pressures are equal 1 meter below the surface, in a lake, an ocean, a teapot, or a straw.

7 0

3 years ago

You are standing on a bathroom scale in an elevator in a tall building. Your mass is

Oksanka [162]

Answer:

94 kg or 921.6 N

Explanation:

The velocity function is $v(t) = 3t + 0.2t^2$ . The acceleration function, a(t), is the time derivative of the velocity function.

$a(t) = \dfrac{d}{dt}v(t) = 3 + 0.4t$

At $t=4$ ,

$a(4) = 3 + 0.4\times4 = 3+1.6 =4.6\text{ m/s}{}^2$

Because the elevator is going upwards, the net acceleration, $a_N = g + a(4)$ where g us acceleration of gravity.

$a_N = 9.8 + 4.6 = 14.4\text{ m/s}{}^2$

The resultant weight is

$W =m a_N =64\times14.4=921.6 \text{ N}$

Since the bathroom scale is graduated in kg, it's reading is

$m =\dfrac{W}{g}=\dfrac{921.6}{9.8}=94\text{ kg}$

3 0

3 years ago

Anyone know the answers to these questions

Lunna [17]

5. 36mph
6. PER-for each
7. 2000 divided by 330 equals 6.06 seconds

7 0

3 years ago

A charging RC circuit controls the intermittent windshield wipers in a car. The emf is 12.0 V. The wipers are triggered when the

lilavasa [31]

Answer:

$R=803k\Omega$

Explanation:

We have the following information,

$V_0 = 12V\\V=10V\\c= 1.25*10^{-6}F\\t=1.8s$

We apply the equation for capacitor charging the voltage across it,

$V=V_0 (1-e^{-t/x})\\e^{-t/x}=1-(\frac{V}{V_0})\\-\frac{t}{Rc}=ln(\frac{V}{V_0})\\R=-\frac{t}{ln(\frac{V}{V_0})*c}$

Replacing values,

$R=-\frac{1.8}{ln(10/12)*1.25*10^{-6}}$

$R=803k\Omega$

3 0

3 years ago

The universal force that is effective over the longest distance is?

monitta

Gravity - is the universal force that is effective over the longest distance.

4 0

3 years ago

Read 2 more answers