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4 years ago

7

A lever can lift 65 N easily. How would you change the lever so that it can lift 150 N? You would increase mechanical advantage

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1 answer:

scoray [572]4 years ago

4 0

<span>You would increase mechanical advantage by moving the fulcrum closer to the output source (load).</span>

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Two steamrollers begin 115 mm apart and head toward each other, each at a constant speed of 1.10 m/sm/s . At the same instant, a

NeX [460]

Answer:

The distance of fly travel is 115.06 m.

Explanation:

Given that,

Distance = 115 mm

Speed = 1.10 m/s

Speed of fly = 2.20 m/s

We need to calculate the relative speed

Using formula of relative speed

$v=v_{1}+v_{2}$

Put the value into the formula

$v=1.10+1.10$

$v=2.20\ m/s$

We need to calculate the time for the two steamrollers to meet each other

Using formula of time

$t=\dfrac{d}{v}$

Put the value into the formula

$t=\dfrac{115}{2.20}$

$t=52.3\ sec$

We need to calculate the distance of fly travel

Using formula of distance

$d=vt$

Put the value into the formula

$d=2.20\times52.3$

$d=115.06\ m$

Hence, The distance of fly travel is 115.06 m.

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3 years ago

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Vinil7 [7]

Answer: clean drinking water I THINK

Explanation:

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4 years ago

The closeness of particles of gas and their low speeds allow intermolecular forces to become important at certain pressures and

Lilit [14]

This is a limitation of kinetic-molecular energy. Right?

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3 years ago

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A resistor of 5 Ω is placed in a circuit. The voltage drop across the resistor is 12 V. What is the current through the resistor

Kaylis [27]

<span>Data:

</span>R = 5 Ω
U = 12 V
i = ?
<span>
Formula:

</span> $U = R*i$ → $i = \frac{U}{R}$ <span>

Solving:

</span> $i = \frac{U}{R}$
$i = \frac{12}{5}$
$\boxed{i = 2.4A}$

Answer:

<span>The current through the resistor is 2.4 Amperes</span><span>

</span>

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3 years ago

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erastova [34]

Explanation:

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3 years ago