The power rating of the engine is 150000 W.
<h3>What is power?</h3>
Power can be defined as the rate at which energy is used or consumed by a body.
To calculate the power of the engine, we use the formula below.
Formula:
- P = FV............. Equation 1
Where:
- P = Power of rating of the engine
- F = Force of the engine
- V = Velocity of the engine.
From the question,
Given:
Substitute these values into equation 1
Hence, The power rating of the engine is 150000 W.
Learn more about power here: brainly.com/question/1173325
Answer:
It will sink
Explanation:
An object in the water can float only if its density is lower than the density of the water.
In fact, for an object completely immersed in water, there are two forces acting on it:
- Its weight, , downward, where is the density of the object, V its volume and g the gravitational acceleration
- The buoyant force, , upwards, there is the density of the water
We see that when the density of an object is larger than the density of the water, , the weight is greater than the buoyant force, , so the object sinks.
In this case, the rock has a density of 1.73 g/cm3, while water has a density of 1.0 g/cm^3, so the rock will sink.
Answer:
400grams
Explanation:
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<em><u>0</u></em><em><u>.</u></em><em><u>5</u></em><em><u>×</u></em><em><u>8</u></em><em><u>0</u></em><em><u>0</u></em><em><u>=</u></em><em><u> </u></em><em><u>4</u></em><em><u>0</u></em><em><u>0</u></em><em><u> </u></em><em>g</em><em>r</em><em>a</em><em>m</em><em>s</em>
Answer:
15.8 cm
Explanation:
In 20.8 seconds, the number of vibrations = 42
In 1 second, the number of vibrations = 42 / 20.8 = 2.019
Frequency is defined as the number of vibrations in one second.
f = 2.019 Hz
Crest travel 371 cm in 11.6 s
v = 3.71 / 11.6 = 0.319 m / s
Use
v = f x λ
λ = v / f = 0.319 / 2.019 = 0.158 m = 15.8 cm
The SI unit of energy is the Joule .
Any kind of energy ... electrical, mechanical, nuclear, solar,
wind etc. It's easy to change from one form to another ... we
do it every day ... and they all have the same unit.