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Anni [7]
3 years ago
5

Suppose you apply a force of 40 N to a 0.25​-meter-long wrench attached to a bolt in a direction perpendicular to the bolt. Dete

rmine the magnitude of the torque when the force is applied at an angle of 135degrees to the wrench.
Physics
1 answer:
andrezito [222]3 years ago
8 0

Answer:

Torque = 7.07 N.m

Explanation:

It is given that,

Force acting on the wrench, F = 40 N

Length of wrench, l = 0.25 meters

It is attached perpendicular to the bolt such that the force is applied at an angle of 135 degrees to the wrench. The formula for torque is given by :

\tau=r\times F

\tau=rF\ sin\theta

\tau=0.25\ m\times 40\ N\ sin(135)

\tau=7.07\ N.m

So, the magnitude of torque applied to the wrench is 7.07 N-m. Hence, this is the required solution.

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Alex_Xolod [135]

Answer: the air above a wildfire

Explanation:

First part of question is: The diagram shows currents that form as water is heated.

When water is being heated from below, convection currents are used. This happens when the molecules at the bottom are heated thus giving them energy and enabling them rise to the surface. The colder water at the surface will therefore sink to the bottom where is is heated making it rise as well and the process is repeated.

When a wildfire is ignited, the concept is the same. The air above the wildfire is the water in this scenario. It is heated at the bottom and rises thereby forcing the air above to come down and be heated as well. Both situations uses convectional currents.  

5 0
3 years ago
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If a bus has a mass of 1,021 kg, how much does the bus weigh?
lisov135 [29]
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6 0
3 years ago
Calculate the force on a unit positive charge at p on x axis whose co-ordinates are (x=2m,y=0) due to the following two charges
Xelga [282]

The force on a unit positive charge at the given position is determined as 1.8 x 10⁻⁸ N.

<h3>Force on the charge</h3>

The force on the charge is calculated as follows;

F = k(q1q2)/r²

where;

  • r is the distance between the charges = 2 m - 1m = 1m

F = (9 x 10⁹ x 10⁻⁹ x 2 x 10⁻⁹)/(1)²

F = 1.8 x 10⁻⁸ N

Thus, the force on a unit positive charge at the given position is determined as 1.8 x 10⁻⁸ N.

Learn more about force here: brainly.com/question/12970081

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7 0
2 years ago
I need help with this​
insens350 [35]

Answer:

distance = 32 kilometers

displacement = 0 kilometers

Explanation:

they traveled 15 km to and back which would mean the distance they traveled is 32 km. but the displacement would still be 0 because their starting and ending points are the same.

7 0
3 years ago
A force of 20 N compresses a spring with a spring constant 50 N/m. How much energy is stored in the spring?
Alex787 [66]

Answer:

4J

Explanation:

Hooke's Law states:

F = -kx

where F = force

k = spring constant

x = displacement of spring

20 = -(50)x

-20/50 = x = -2/5

We can now use this information to find the energy in the Elastic Potential Energy Formula which is...

1/2(k)(x)^2

1/2(50)(2/5)^2 = 4J

3 0
3 years ago
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