3 years ago

PLEASE HELP ME

Physics

2 answers:

KATRIN_1 [288]3 years ago

6 0

B.Low levels of fecal coliform

posledela3 years ago

5 0

Low levels of fecal coliform

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When tightening a bolt, you push perpendicularly on a wrench with a force of 165 N at a distance of 0.140 m from the center of t

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Answer:

Part a)

$\tau = 23.1 Nm$

Part b)

$\tau = 17.05 Foot pound force$

Explanation:

As we know that torque is defined as the product of force and its perpendicular distance from reference point

so here we have

$\tau = \vec r \times \vec F$

now we have

$\tau = (0.140)(165)$

$\tau = 23.1 Nm$

Part b)

Now we know the conversion as

1 meter = 3.28 foot

1 N = 0.225 Lb force

now we have

$\tau = 23.1 Nm$

$\tau = 23.1 (0.225 Lb)(3.28 foot)$

$\tau = 17.05 Foot pound force$

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2 years ago

A pendulum has a period of 0.500. What is its length?

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It's about 6 cm long

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You have a ball in your hand above the ground at rest which you then drop. What energy is involved in each part of this situatio

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When you hold the ball, you have potential energy, when you drop the ball, you have kinetic.

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3 years ago

Which of one of Newtons laws are being tested here? Explain how this law relates to figure one

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Answer:

Newtons second law (f=m×a)

Explanation:

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The law of repulsion by Coulomb agrees with: Newton's law of universal gravitation Newton's laws of motion the findings of Gilbe

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Explanation:

The law of repulsion is given by Coulomb. The mathematical form of Coulomb law is given by :

$F=\dfrac{kq_1q_2}{r^2}$ ...............(1)

Where

F is the force

k is the electrostatic constant

$q_1\ and\ q_2$ are electric charges

r is the distance between charges

The Newton's law of universal gravitation is given by :

$F=\dfrac{Gm_1m_2}{r^2}$ ..............(2)

G is the universal gravitational constant

From equation (1) and (2) it is clear that both law obeys inverse square law and both are of same type. So, the law of repulsion by Coulomb agrees with the Newton's law of universal gravitation.

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3 years ago