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3 years ago

A crowbar makes our work easier by multiplying effort true or false

Physics

1 answer:

OLEGan [10]3 years ago

6 0

Answer:

True

Explanation:

A crowbar makes our work easier by multiply effort because it belongs to first class lever.

And first class lever makes work easier by multiplying the effort

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The force of the added water produces a torque on the dam. In a simple model, if the torque due to the water were enough to caus

Fittoniya [83]

Answer:

The appropriate response is " $\tau=\frac{1}{6} PgLh^3$ ". A further explanation is described below.

Explanation:

The torque ( $\tau$ ) produced by the force on the dam will be:

⇒ $d \tau=XdF$

On applying integration both sides, we get

⇒ $\tau = \int_{0}^{a}x pgL(h-x)dx$

⇒ $= pgL\int_{0}^{h}(h-x)dx$

⇒ $=pgL[\frac{h^3}{2} -\frac{h^3}{3} ]$

⇒ $=\frac{1}{6} PgLh^3$

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2 years ago

Is friction and pushing similar ????

olya-2409 [2.1K]

Answer:

Yes, they are.

Explanation:

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2 years ago

Read 2 more answers

A bullet is fired straight up from a gun with a

melamori03 [73]

Answer: 815.51 m

Explanation:

This situation is related to projectile motion or parabolic motion, in which the initial velocity of the bullet has only y-component, since it was fired straight up. In addition, we are dealing with constant acceleration (due gravity), therefore the following equations will be useful to solve this problem:

$V=V_{o}+gt$ (1)

$V^{2}=V_{o}^{2}+2gy$ (2)

Where:

$V$ is the final velocity of the bullet

$V_{o}=152 m/s$ is the initial velocity of the bullet

$g=-9.8 m/s^{2}$ is the acceleration due gravity, always directed downwards

$t=6.9 s$ is the time

$y$ is the vertical position of the bullet at $t=6.9 s$

Let's begin by finding $V$ from (1):

$V=152 m/s-9.8 m/s^{2}(6.9 s)$ (3)

$V=84.38 m/s$ (4)

Now we have to substitute (4) in (2):

$(84.38 m/s)^{2}=(152 m/s)^{2}-2(9.8 m/s^{2})y$ (5)

Isolating $y$ :

$y=815.511 m$ This is the displacement of the bullet after 6.9 s

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2 years ago

10.A car moving at 18 m/s accelerates at -2.5 m/s² as it approaches a stop sign.

Tatiana [17]

Answer:

Explanation:the time taken to stop is 7seconds

The distance traveled by the car as it breaks is 63m

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2 years ago

This country has become an attractive manufacturing location for semiconductors because of the number of manufacturing plants in

djyliett [7]

This country has become an attractive manufacturing location because of availability of workers skilled in semiconductor production is True.

<h3>What is Production?</h3>

This involves the process of conversion of raw materials into finished products.

It involves the factors of production which is why the country became an attractive manufacturing location for semiconductors because of the number of manufacturing plants in the country and availability of workers skilled in semiconductor production.

Read more about Production here brainly.com/question/16755022

4 0

1 year ago

A crowbar makes our work easier by multiplying effort true or false​

A crowbar makes our work easier by multiplying effort true or false