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3 years ago

I WILL GIVE BRAINLIEST!!!!!

Physics

2 answers:

Lilit [14]3 years ago

7 0

The first one 10 ft-lbs I think

kumpel [21]3 years ago

6 0

Answer:

It's 10 ft-lbs

Explanation:

In that case work done is not associated with time.

We will consider only Force aplied and the distance covered in the direction of force.

Therefore, Work done = Force × distance

= 2 lbs × 5 ft

= 10 ft-lbs

But in most cases answers are written in SI units.

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What can a human still do better and faster than any machine learning solution<br>

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Answer:

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3 years ago

In the steady state 1.2 ✕ 1018 electrons per second enter bulb 1. There are 6.3 ✕ 1028 mobile electrons per cubic meter in tungs

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Answer:

E=12.2V/m

Explanation:

To solve this problem we must address the concepts of drift velocity. A drift velocity is the average velocity attained by charged particles, such as electrons, in a material due to an electric field.

The equation is given by,

$V=\frac{I}{nAq}$

Where,

V= Drift Velocity

I= Flow of current

n= number of electrons

q = charge of electron

A = cross-section area.

For this problem we know that there is a rate of 1.8*10^{18} electrons per second, that is

$\frac{I}{q} = 1.2*10^{18}$

$A= 1.3*10^{-8}m^2$

$n=6.3*10^{28} e/m^3$

$\omicron{O} = 1.2*10^{-4}(m/s)(N/c)$ Mobility

We can find the drift velocity replacing,

$V = \frac{1.2*10^{18}}{(1.3*10^{-8})(6.3*10^{28})}$

$V= 1.465*10^-3m/s$

The electric field is given by,

$E= \frac{V}{\omicron{O}}$

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4 years ago

An unknown fluid flows at a speed of 31 m/s. Suppose the fluid has a mass of 47 kg runs at this speed. What is the fluid’s kinet

Leya [2.2K]

Answer:

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Explanation:

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2 years ago

A rock displaces 1.65 L of water. The volume of the rock is:

Oksanka [162]

Answer:

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Explanation:

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3 years ago

Which type of graph is best suited to show the breakdown of how this teacher weights each category ?

MArishka [77]

Answer:

pie graph?

Explanation:

6 0

4 years ago

Read 2 more answers