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torisob [31]
3 years ago
14

3. A difference between copper and plastic is that copper has a much higher

Physics
2 answers:
Fofino [41]3 years ago
8 0
The answer is d. ; )
Neko [114]3 years ago
6 0

Answer:

d ............................

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You swing a 2.2 kg stone in a circle with radius 75 cm. At what speed do you need to swing it so its centripetal acceleration wi
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if I'm not wrong it

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should be 2.7 m/s don't trust me though

4 0
3 years ago
A student uses a spring to launch a marble vertically in the air. The mass of the marble is
Fed [463]

Answer:

the maximum height reached by the marble is 11.84 m.

Explanation:

Given;

mass of the marble, m = 0.02 kg

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force applied to the string, F = 58 N

Apply the principle of conservation of energy;

elastic potential energy = gravitational potential energy

¹/₂fx = mgh

h = \frac{Fx}{2mg} \\\\h = \frac{58 \ \times \ 0.08}{2 \ \times \ 0.02 \ \times \ 9.8} \\\\h = 11.84 \ m

Therefore, the maximum height reached by the marble is 11.84 m.

5 0
3 years ago
I have the mass but I can't find (b) or (c)
Solnce55 [7]

Answer:

i only wrote this for points

Explanation:

5 0
3 years ago
5. An ion consist of 12 electrons and 11 proton. What is the charge<br> on the ion?
sammy [17]

Answer:

-1

Explanation:

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5 0
3 years ago
When a machine is used to perform a task, work output is always more than work input. please select the best answer from the cho
Maurinko [17]
Properly input current above 40 voltage or 100 for example elecrical fan machine is used to perform a task, work output is always more than work
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