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a_sh-v [17]
3 years ago
8

A block of wood weighing 30N and of specific gravity 0.75 is ties by a string to the bottom of a tank of water in order to have

the block totally immersed.What is the tension of the string?​
Physics
1 answer:
Nimfa-mama [501]3 years ago
7 0
30N is what I think but I’m not 100% sure
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write an essay describing and predicting the effects of fitness-related stress management techniques on the body.
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In a single-slit diffraction experiment, a coherent light source illuminates a slit in a barrier, and the resulting pattern is p
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hsjdsdddwqdqwdd

Explanation:

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3 years ago
A motorbike reaches a speed of 20 m/s over 60m, whilst
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Initial speed = 2√10 m/s

<h3>Further explanation  </h3>

Linear motion consists of 2: constant velocity motion with constant velocity and uniformly accelerated motion with constant acceleration  

An equation of uniformly accelerated motion  

V = vo + at  

Vt² = vo² + 2a (x-xo)  

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7 0
4 years ago
Convert mm3 into m3.​
bixtya [17]

Answer:

1 \times 10 { - }^{9}

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Explanation:

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4 0
3 years ago
Black widow (m=57000 g) shovels snow, holding the shovel at a 40 degree angle above the ground. If she uses a constant force of
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Answer:

She does a work of 689.44 J in the snow.

Explanation:

A force is said to do work when it alters the state of motion of a body. The work of the force on that body will be equivalent to the energy needed to move it.

In other words, Work is a form of energy transmission between bodies. In order to carry out work, a force must be exerted on a body and it must move.

The work is equal to the product of the force times the distance and the cosine of the angle that exists between the direction of the force and the direction that the moving point or object travels:

W= F*d* cos Ф

Work W is measured in joules (J), force is measured in newtons (N), and displacement in meters (m).

In this case:

  • F= 180 N
  • d=5 m
  • Ф= 40 degrees

Replacing:

W= 180 N*5 m* cos 40

Solving:

W= 689.44 J

<u><em>She does a work of 689.44 J in the snow.</em></u>

7 0
3 years ago
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