PHYSICS MIDDLE SCHOOL

If the angular displacement= 3t²+2t,find the angular velocity and angular acceleration​

Answers

Answer 1
Answer:

Hi there!

The angular velocity is equivalent to:

\omega(t) = \theta'(t) = (d\theta)/(dt)

Take the derivative using the power rule:

w(t) = (d\theta)/(dt) = \boxed{6t + 2}

The angular acceleration is equivalent to:

\alpha(t) = (d\omega)/(dt)

Differentiate once again:

\boxed{\alpha(t) = 6}
Answer 2
Answer:

Answer:

SORRY IDK BUT THX

Explanation:

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When you measure the boiling point of mercury, you are investigating a ___. a.chemical change b.chemical property c.physical change d.physical property

Answers

d. physical property

the bonds between molecules of mercury are breaking so it's physical and it's not changing the chemical composition of the substance

If an object has a mass of 50 kg and is accelerating at 2m/s/s, what is the force it will exert?

Answers

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If nothing is faster than light, how did the dark get there first?

Answers

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A stone is dropped from rest from a tall building how fast is the stone moving after 5s

Answers

Answer:

The final velocity is -49.05 meters per second.

Explanation:

Let's use an equation of constant acceleration:

v=v_0+at\nv=v_0-gt\n

Where a is the acceleration and g is the acceleration caused by gravity.

Since the object is being dropped from rest, v_0=0 (m)/(s).

We're looking for the speed after 5 seconds, so t=5 s.

v=(0(m)/(s))-(9.81(m)/(s^(2)))(5s)\nv=-49.05(m)/(s)

So the final velocity is -49.05 meters per second.

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Answers

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Answers

Answer:

Breeder reactors are different from conventional nuclear reactors because they produce more fuel than they consume when producing energy and can re-use the plutonium they produce to fuel the reactor.

Explanation:

Nuclear reactors use uranium as a source of fuel to generate the required energy.These reactors produce less fissionable matter than they consume.For example, the amount of plutonium produced in nuclear rectors is less than that produced in Breeder reactors.In Breeder reactors, the plutonium produced can be separated and collected to be reused as fuel in the reactor.Additionally, breeder reactors use a coolant such as liquid sodium equipping the neutrons with high energy thus increasing the chances  of the neutrons to be captured by uranium isotopes and be converted to plutonium.
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