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erma4kov [3.2K]
3 years ago
9

A torque of 180Nm is caused by a force perpendicular to a beam acting at a point 1.6m from the fulcrum. Caculate the magnitued o

f the force.
Physics
1 answer:
klemol [59]3 years ago
6 0
Torque =  Force * Perpendicular distance.
180 Nm = F      * 1.6.
  F* 1.6 = 180.
F  = 180/1.6  Use your calculator.
F = 112.5.
Force is 112.5 N. That's it.
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An 8 Ω resistor is connected to a 6 V battery and another resistor in series. If the current in the circuit is 0.5 A, what is th
Semmy [17]
8+R=V/I
8+R=6/0.5=12 ohm
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4 0
3 years ago
bumper car A (281 kg) moving +2.82 m/s makes an elastic collision with bumper car B (209 kg) moving +1.72 m/s what is the veloci
spin [16.1K]

Answer: V1 = 3.559 - 0.744V2

Explanation: Given that the

bumper car A has

Mass M1 = (281 kg) moving with

Velocity U1 = 2.82 m/s

bumper car B has

Mass M2 = (209 kg) moving with

Velocity U2 = 1.72 m/s

Where U1, U2 are the initial velocity of the two cars

Since the collision is elastic, we will use the formula below,

M1U1 + M2U2 = M1V1 + M2V2

Substitute the values into the formula

281×2.28 + 209×1.72 = 281V1 + 209V2

640.68 + 359.48 = 281V1 + 209V2

1000.16 = 281V1 + 209V2

Make V1 the subject of formula

281V1 = 1000.16 - 209V2

V1 = 1000.16/281 - 209V2/281

V1 = 3.559 - 0.744V2

Therefore, the velocity of car A which

is V1 after the collision will be expressed as V1 = 3.559 - 0.744V2

6 0
3 years ago
What is the period of a pendulum that is 1.3 m long?
Mkey [24]

Answer:

T≈2.2876585681s

Explanation:

Since you were not given the degrees of amplitude or radians of amplitude, we assume that the degrees of amplitude are less than 20∘ or 20∘ and we also assume that this is a simple pendulum

6 0
3 years ago
A battery is connected to a light bulb in a circuit. The voltage of the battery is 1.5 V(volts). The light bulb has a resistance
trasher [3.6K]
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5 0
4 years ago
If you are given time and distance, you can determine power if you know force. watts. energy. joules. Question 7(Multiple Choice
IgorC [24]

<u>Answer</u>

Force.


<u>Explanation</u>

Power is the are of doing work done.

∴ power = (work done) / (time take)    ⇒⇒⇒This time is given.

Work is said to be have done when a force has been used to move an object at a certain distance. work is the product of force and the distance move in the direction of that force.

∴ work done = force × distance     ⇒⇒ This distance is given.


<h3>Power = <em>( force</em> × distance ) / (time taken)</h3>

So, to get power when given time and distance we need force.  



6 0
3 years ago
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