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3 years ago

Convert 123,453 to a scientific notation

Physics

1 answer:

Natalija [7]3 years ago

3 0

Answer:

1.23453*10^5 is scientific way

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What is an unbalanced force. in your own words but be more detailed.

pogonyaev

Answer:

An unbalanced force is a force that causes an object's state of motion to change. In other words, unbalanced forces are the things that make objects speed up or slow down.

Explanation:

(self-explanatory)

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3 years ago

Can someone help me answer this pls I’ll give brainliest

hammer [34]

Answer: I think the answer is Non-foliated if it is wrong i am so sorry

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Explanation:

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3 years ago

A dentist using a dental drill brings it from rest to maximum operating speed of 391,000 rpm in 2.8 s. Assume that the drill acc

krek1111 [17]

Answer:

$\alpha = 2327.7 \ rev/s^2$

$\theta = 9124.5 \ rev$

Explanation:

From the question we are told that

The maximum angular speed is $w_{max} = 391000 \ rpm = \frac{2 \pi * 391000}{60} = 40950.73 \ rad/s$

The time taken is $t = 2.8 \ s$

The minimum angular speed is $w_{min}= 0 \ rad/s$ this is because it started from rest

Apply the first equation of motion to solve for acceleration we have that

$w_{max} = w_{mini} + \alpha * t$

=> $\alpha = \frac{ w_{max}}{t}$

substituting values

$\alpha = \frac{40950.73}{2.8}$

$\alpha = 14625 .3 \ rad/s^2$

converting to $rev/s^2$

We have

$\alpha = 14625 .3 * 0.159155 \ rev/s^2$

$\alpha = 2327.7 \ rev/s^2$

According to the first equation of motion the angular displacement is mathematically represented as

$\theta = w_{min} * t + \frac{1}{2} * \alpha * t^2$

substituting values

$\theta = 0 * 2.8 + 0.5 * 14625.3 * 2.8^2$

$\theta = 57331.2 \ radian$

converting to revolutions

$revolution = 57331.2 * 0.159155$

$\theta = 9124.5 \ rev$

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3 years ago

A plastic tube placed from the ventricles of the brain to the peritoneal cavity in order to continuously remove excess cerebrosp

irina1246 [14]

Answer:

ventriculoperitoneal

Explanation:

A VP or ventriculoperitoneal shunt is a medical equipment or a device which is used to relieve pressure from the brain that is caused by the accumulation of fluid in the brain. Ventriculoperitoneal shunting is a medical procedure that is primarily used to treat a condition known as hydrocephalus. This condition occurs when the more cerebrospinal fluid (CSF) gets collected in the ventricles of the brain than required.

Hence the answer is ---

ventriculoperitoneal

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3 years ago

Which statement explains the similarity between momentum and kinetic energy of an object?

brilliants [131]

The correct answer is B. Both are directly proportional to the mass and velocity of the object.

Hope this helps

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3 years ago

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