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2 years ago

13.

Physics

1 answer:

lisov135 [29]2 years ago

5 0

The net torque on the seesaw is 294 Nm.

<h3>What is torque?</h3>

Torque is the force that tends to rotate the body to which it was applied.

To calculate the net torque, we use the formula below

Formula:

τ = mgd-m'gd'........... Equation 1

Where:

τ = Net torque

m = Jenny's mass
m' = Tom's mass
d = Jenny's distance from the pivot
d' = Tom's distance from the pivot
g = acceleration due to gravity

From the question,

Given:

m = 40 kg
m' = 30 kg
d = 1.5 m
d' = 1 m
g = 9.8 m/s²

Substitute these values into equation 1

τ = (40×1.5×9.8)-(30×1×9.8)
τ = 588-294
τ = 294 Nm

Hence, The net torque on the seesaw is 294 Nm.

Learn more about torque here: brainly.com/question/14839816

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Explanation:

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The intensity of the Sun's light in the vicinity of the Earth is about 1000W/m^2. Imagine a spacecraft with a mirrored square sa

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F = $\frac{dP}{dt}$

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Thus, we can conclude that the thrust is 201.67 N.

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3 years ago

Why the reflected rays for a rough surface do not result in the formation of an image.

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2 years ago

A baby carriage is sitting at the top of a hill that is 35 m high. The

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2 years ago

Read 2 more answers

The drawing shows a loudspeaker A and point C, where a listeer is positioned. A second loudspeaker B is located somewhere to the

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Answer: 4.17m

Explanation:

The observer at C will hear a sound on no sound upon whether the interference is constructive or destructive.

If the listeners hears sounds it is caled constructive interference but if he hears no sound its called destructive interference.

d2 - d1 = (n *lamba)/ 2

Where n=1,3,5

lamda=v/f =349/62.8

lamda=5.56m

d2= d1 + nlamda/2

d2= 1 + 5.56/2

d2= 3.78m

X'= 1 cos 60= 0.5m

Y= 1 sin60= 0.866m

X"^2 + Y^2 =d2^2

X" =√(y^2 - d2^2)

X"=√(3.78^2 - 0.886^2)

X"= 3.67m

So therefore the closest that speaker A can be to speaker B so the listener does not hear any sound is X' + X"= 0.5 + 3.67

4.17m

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3 years ago