3 years ago

The last "hot house" or period of increased temperature occurred _____.

Physics

1 answer:

xxMikexx [17]3 years ago

3 0

When there was know life on the earth

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What is the mechanical advantage supplied by a 1000 N object lifted using 250 N of force

Ivenika [448]

Answer:

Mechanical advantage=4

Explanation:

Load=1000N

Effort=250N

mechanical advantage=load/effort

Mechanical advantage=1000/250

Mechanical advantage=4

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lutik1710 [3]

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allochka39001 [22]

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In which electric circuit would the voltmeter read 10 volts ?

ki77a [65]

Given that,

Voltage = 10 volt

Suppose, The three resistance is connected in parallel and each resistance is 12 Ω. find the current in the electric circuit.

We need to calculate the equivalent resistance

Using formula of parallel

$\dfrac{1}{R}=\dfrac{1}{R_{1}}+\dfrac{1}{R_{2}}+\dfrac{1}{R_{3}}$

Put the value into the formula

$\dfrac{1}{R}=\dfrac{1}{12}+\dfrac{1}{12}+\dfrac{1}{12}$

$\dfrac{1}{R}=\dfrac{1}{4}$

$R=4\ \Omega$

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Using ohm's law

$V=IR$

$I=\dfrac{V}{R}$

Where, V = voltage

R = resistance

Put the value into the formula

$I=\dfrac{10}{4}$

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3 years ago

All objects emit what radiation

Eduardwww [97]

If an object is not at Absolute Zero, then it is
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