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2 years ago

10

What do Newton's three laws state?

1 answer:

guapka [62]2 years ago

8 0

In the first law, we understand that an object will not change its motion unless a force acts on it. The second law states that the force on an object is equal to its mass times its acceleration. And, finally, the third law states that there is an equal and opposite reaction for every action.

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Carlota does 2000 J of work on a machine. The machine does 500 J of work. What is the efficiency of the machine?

Luden [163]

A. 4% you divide 2000 to 500 and you get 4 which is your answer

3 0

3 years ago

Alcohol poisoning affects what part of our body, which can lead to death?

Vladimir79 [104]

Answer:

the answer is A: voluntary reflexes

Explanation:

because Alcohol poisoning can effect the brain which voluntary is something in the brain

7 0

3 years ago

A sphere of radius 0.03m has a point charge of q= 7.6 micro C located at it’s centre. Find the electric flux through it?

GalinKa [24]

Answer:

The electric flux through the sphere is $8.58 *10^{5} \frac{Nm^2}{C}$

Explanation:

Given

$Radius,\ r = 0.03m\\Charge,\ q =7.6\µC$

Required

Find the electric flux

Electric flux is calculated using the following formula;

Ф = q/ε

Where ε is the electric constant permitivitty

ε $= 8.8542 * 10^{-12}$

Substitute ε $= 8.8542 * 10^{-12}$ and $q =7.6\µC$ ; The formula becomes

Ф = $\frac{7.6\µC}{8.8542 * 10^{-12}}$

Ф = $\frac{7.6 * 10^{-6}}{8.8542 * 10^{-12}}$

Ф = $\frac{7.6}{8.8542} *\frac{10^{-6}}{10^{-12}}$

Ф = $\frac{7.6}{8.8542} *10^{12-6}}$

Ф = $0.85834970974 *10^{12-6}}$

Ф = $0.85834970974 *10^{6}}$

Ф = $8.5834970974 *10^{5}}$

Ф = $8.58 *10^{5} \frac{Nm^2}{C}$

Hence, the electric flux through the sphere is $8.58 *10^{5} \frac{Nm^2}{C}$

7 0

3 years ago

Why is the scientific method described as cyclic?

Troyanec [42]

Because the scientific method can go around in a circle as many times as neccisary to get the results you need

8 0

3 years ago

A powered winch is used to pull a sailboat to shore. The winch uses a 900 W motor. If the motor is used for 30 s, how much work

kolbaska11 [484]

Answer:

they have given us

power = 900W

time = 30s

$p = \frac{wd}{t} \\ p \times t = wd \\ 900 \times 30 = w.d \\ 27000j$

4 0

3 years ago

Read 2 more answers