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3 years ago

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Environmental degradation is when natural resources are_____________.

1 answer:

Romashka [77]3 years ago

3 0

Answer:

used more quicklk

then replaced i think it is right

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PLEASE HELP!<br> QUESTION 2A,B and C. PLEASE HELP. 50 points

Greeley [361]

Answer:

first

Explanation:

7 0

3 years ago

"A proton is placed in a uniform electric field of 2750 N/C. You may want to review (Page) . For related problem-solving tips an

tekilochka [14]

To solve this problem we will start from the definition of Force, as the product between the electric field and the proton charge. Once the force is found, it will be possible to apply Newton's second law, and find the proton acceleration, knowing its mass. Finally, through the linear motion kinematic equation we will find the speed of the proton.

PART A ) For the electrostatic force we have that is equal to

$F=qE$

Here

q= Charge

E = Electric Force

$F=(1.6*10^{-19}C)(2750N/C)$

$F = 4.4*10^{-16}N$

PART B) Rearrange the expression F=ma for the acceleration

$a = \frac{F}{m}$

Here,

a = Acceleration

F = Force

m = Mass

Replacing,

$a = \frac{4.4*10^{-16}N}{1.67*10^{-27}kg}$

$a = 2.635*10^{11}m/s^2$

PART C) Acceleration can be described as the speed change in an instant of time,

$a = \frac{v_f-v_i}{t}$

There is not $v_i$ then

$a = \frac{v_f}{t}$

Rearranging to find the velocity,

$v_f = at$

$v_f = (2.635*10^{11})(1.4*10^{-6})$

$v_f = 3.689*10^{5}m/s$

7 0

3 years ago

WHAT DOES THE INCREASE IN TEMPERATURE INDICATE

KATRIN_1 [288]

Increase in temperature means:
- The substance is getting hotter
- It's internal energy is rising

8 0

3 years ago

Read 2 more answers

if a man hits a golf ball (0.2 kg) which accelerates at a rate of 20 m/s squared. what amount of force acted on the ball?

kkurt [141]

F = ma

We have mass = 0.2kg

and acceleration = 20 m/s^2

So..

F = (0.2)(20)

F = 4 N

6 0

3 years ago

Scientist who discovered that the nucleus contains neutrons in addition to protons.

ZanzabumX [31]

Answer: James Chadwick

:)

5 0

3 years ago