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2 years ago

Convert (a) 50 oF, (b) 80 oF, (c) 95 oF to Celsius

Physics

1 answer:

storchak [24]2 years ago

5 0

I really need these points thx a lot

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A lever is being used to move a heavy stone from a garden. The stone weighs 250 newtons. The board used as a lever is 6 meters l

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Answer:

Force = 125 [N]

Explanation:

In the attached image we can see a sketch of the lever system.

And if we make a sum of moments at the point O equal to zero (0).

In the equation showed in the image, we can determinate the force that we need

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3 years ago

7. What is the velocity of an object that has a mass of 4.5 kilograms and

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Answer:

266.66 m/s

Explanation:

p=mv

1200=4.5v

v=266.66 m/s

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2 years ago

A student adds ice to 150 mL of water. She observes that the temperature of the water decreases after 10 minutes. Which statemen

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Answer:

3- kinetic energy was transferred from the water to the ice

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3 years ago

Which of these does NOT emit visible light?

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c the galaxy because on a nice night you cant see the milkly way

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3 years ago

A bicycle has tires of radius 0.35 meters. If the bicycle is traveling at a constant speed of 7.8 m/s, at approximately what ang

lord [1]

22.3 rad/s

<h3>Further explanation</h3>

We will solve the question of uniform circular motion.

<u>Given:</u>

A bicycle has tires of radius $\boxed{ \ R = 0.35 \ meters \ }$
The bicycle is traveling at a constant speed of $\boxed{ \ v = 7.8 \ m/s \ }$

<u>Question:</u>

What angular speed are the tires rotating?

<u>The Process:</u>

Speed, angular speed, and radius are connected in the following formula:

$\boxed{\boxed{ \ v = \omega R \ }}$

The angular speed is worked out by

$\boxed{ \ \omega = \frac{v}{R} \ }$

All units are in the SI system so let us calculate the angular speed.

$\boxed{ \ \omega = \frac{7.8 \ m/s}{0.35 \ m} \ }$

Thus the value of the angular velocity of the rotating tire is $\boxed{\boxed{ \ \omega = 22.3 \ rad/s \ }}$

<u>An additional question:</u>

What is the frequency of tire rotation?

Recall this formula: $\boxed{ \ \omega = 2 \pi f \ } \rightarrow \boxed{ \ f = \frac{\omega}{2 \pi} \ }$

$\boxed{ \ f = \frac{22.3 \ rad/s}{2 \pi} \ }$

We get $\boxed{\boxed{ \ f = 3.55 \ Hz \ }}$

<h3>Learn more</h3>

Arc CD is ²/₃ of the circumference of a circle. What is the radian measure of the central angle? brainly.com/question/2115496
A triangle is rotated 90° about the origin brainly.com/question/2992432
Particle's speed and direction of motion brainly.com/question/2814900

Keywords: a bicycle has tires of radius 0.35 meters. traveling, at a constant speed of 7.8 m/s, at approximately, angular speed, the tires rotating

7 0

3 years ago