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3 years ago

8

Which scientist did this?

2 answers:

DochEvi [55]3 years ago

8 0

Ernest Rutherford

Known for

Discovery of alphaand beta radioactivity

Discovery of atomic nucleus(Rutherford model)

Rutherford scattering
Rutherford backscattering spectroscopy

Discovery of proton

Rutherford (unit)

Coining the term 'artificial disintegration'

Colt1911 [192]3 years ago

4 0

You answer would be C. Ernest Rutherford.

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If two solutions have unequal concentrations of a solute, the solution with the lower concentration is called

marta [7]

Obviouskly lower concentrstion

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3 years ago

A circuit consists of one 330 ohm resistor in series with two other resistors (470 ohms and 220 ohms) connected in parallel. Wha

umka21 [38]

Answer:

power drain on an ideal battery, P = 0.017 W

Given:

$R_{1} = 330\ohm$

$R_{2} = 470\ohm$

$R_{3} = 220\ohm$

Since, $R_{2} = 470\ohm$ and $R_{3} = 220\ohm$ are in parallel and this combination is in series with $R_{1} = 330\ohm$ , so,

Equivalent resistance of the circuit is given by:

$R_{eq} = \frac{R_{2}R_{3}}{R_{2} + R_{3}} + R_{1}$

$R_{eq} = \frac{470\times 220}{470 + 220} + 330$

$R_{eq} = 149.85 + 330 = 479.85 \ohm$

power drain on an ideal battery, P = $\frac{V^{2}}{R_{eq}}$

P = $\frac{2.9^{2}}{479.85}$

P = 0.017 W

4 0

3 years ago

A mass of 5kg accelerates at 3m/s/s, how much force was put on it?

goldfiish [28.3K]

Answer:

15N

Explanation:

According to Newton's Second Law of Motion

F = m*a

mass = m = 5Kg

acceleration = a = 3m/s^2

=> F = 5kg * 3m/s^2

=> F = 15 N

5 0

3 years ago

Read 2 more answers

A 200-kg boulder is 1000-m above the ground. what is its potential energy?

myrzilka [38]

Explanation:

PE = mgz = 200 * 9.81 *1000 = 1962 KJ

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3 years ago

Can anyone answer this for my friend course I am not sure of what I did I don’t take physics but I did it

kogti [31]

Answer:

the total travled is 2.75

Explanation:

because if you divide 110 by 40 you get 2.75

3 0

3 years ago