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3 years ago

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Physics

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Maslowich3 years ago

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Answer:

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When Jane drives to work, she always places her purse on the passenger’s seat. By the time she gets to work, her purse has falle

madam [21]

Answer:

the vibrations push the purse up and down very fast and gravity pushes the purse down onto the floor

Explanation: does that help

7 0

3 years ago

Which is the property of mattter in which substance can transfer heat to electricity

vodomira [7]

Conductivity is the property of matter in which a substance can transfer heat or electricity.

<h3>Additional information:- </h3>

Matter : Anything which occupies space and has mass is called matter.

Chemical classifications

Pure Substances ( made of one kind of substance )

Impure Substances ( mixture )

Physical classifications

Solid

Liquid

Plasma ( made of ions and free electrons )

BEC ( Bose Einstein Condensate )

Fermionic Condensate ( It discovered in 2003 )

6 0

3 years ago

Explain why a moving object cannot come to a stop instantaneously (in zero seconds)

elena55 [62]

Answer: The pressure from the air and force of who or what used effort to make it move. For example you roll a ball it doesn't stop unless it runs out of the force which in this case would be energy.

Explanation:

Knowledge

7 0

3 years ago

The wheel on an upside-down bicycle moves through 18.0 rad in 5.39 s. What is the wheel’s angular acceleration if its initial an

Elden [556K]

Explanation:

Formula to calculate angular acceleration is as follows.

$\Delta (\theta) = \frac{1}{2} \alpha \Delta t^{2} + \omega_{1} \Delta t$

or, $\alpha = \frac{2(\Delta (\theta) - \omega_{1} \Delta t)}{\Delta t^{2}}$

Putting the given values into the above formula as follows.

$\alpha = \frac{2(\Delta (\theta) - \omega_{1} \Delta t)}{\Delta t^{2}}$

= $\frac{2(18.0 rad - 2.5 rad/s \times 5.30 s)}{(5.39)^{2}}$

= 0.326 $rad/s^{2}$

Thus, we can conclude that the wheel’s angular acceleration if its initial angular speed is 2.5 rad/s is 0.326 $rad/s^{2}$ .

5 0

3 years ago

Which information is necessary to determine an object's speed?

lana [24]

Answer:

1. distance and period of time.

Explanation:

The speed is calculated using the formula $k = \frac{d}{t}$

"k" is the speed, "d" is the distance and "t" is the time.

You need distance and time to calculate the speed.

Speed is how fast an object is going. The direction is irrelevant to speed, not to be confused with velocity, which is speed in a given direction.

5 0

3 years ago