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torisob [31]
2 years ago
8

Helpppp physics plzzzzz

Physics
1 answer:
Kay [80]2 years ago
3 0
Hi!

This is representing constant positive acceleration. We can figure this out by its increasing speed, not a speed that is constant.

If you found this especially helpful, I'd appreciate if you'd vote me Brainliest for your answer. I want to be able to assist more users one-on-one! :)
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Is "A firecracker that has not been lit kinetic, or potential energy?
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A firecracker before been lit has potential energy in it. It is chemical potential energy which is due to the explosives in it.When it is lit, it gets converted into heat,light and kinetic energy.
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3 years ago
RATIO of longest wavelengths corresponding to Lyman and Balmer series in hydrogen spectrum is:
katen-ka-za [31]

Answer:

<h2>3) \:  \:  \frac{5}{27}</h2>

Explanation:

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2 years ago
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A car, starting from the origin, travels
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Answer:

The net displacement of the car is 3 km West

Explanation:

Please see the attached drawing to understand the car's trajectory: First in the East direction for 4 km (indicated by the green arrow that starts at the origin (zero), and stops at position 4 on the right (East).

Then from that position, it moves back towards the West going over its initial path, it goes through the origin and continues for 3 more km completing a moving to the West a total of 7 km. This is indicated in the drawing with an orange trace that end in position 3 to the left (West) of zero.

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8 0
2 years ago
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When Trinity pulls on the rope with her weight, Newton's Third Law of Motion tells us that the rope will _____.
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The power of the kettle was 2.6 kW
faltersainse [42]

Answer:

Cp = 4756 [J/kg*°C]

Explanation:

In order to calculate the specific heat of water, we must use the equation of energy for heat or heat transfer equation.

Q = m*Cp*(T_f - T_i)/t

where:

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Cp = specific heat of water [J/kg*°C]

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T_i = initial temperature of the water = 18 [°C]

t = time = 120 [s]

Now clearing the Cp, we have:

Cp = Q*t/(m*(T_f - T_i))

Now replacing

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Cp = 4756 [J/kg*°C]

7 0
2 years ago
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