Answer:
It's an Angle of incidence that provides a 90° angle but is also refracted at the same time. it's used to find the water-air boundary (which is 48.6 degrees). in addition, its an angle of incidence value.
The mass of an object on Earth is the same as its mass on the Moon. The weight is different.
Weight = m * g
Weight ( Moon ) = 40 kg * 1.6 m/s² = 64 N
If the mass of an object on Earth is 40 kg, its mass on the Moon is 40 kg and its weight on the Moon is 64 N.
The power require to keep the car traveling is 6,666 W.
The power of the engine at the given efficiency is 3,999.6 W.
<h3>What is Instantaneous power?</h3>
This the product of force and velocity of the given object.
The power require to keep the car traveling is calculated as follows;
P = Fv
![P = 300\ N \ \times \ \frac{80 \ kmh^{-1}}{3.6 \ km h^{-1}/m/s} \\\\ P = 300 \ N \times 22.22 \ m/s\\\\ P = 6,666 \ W](https://tex.z-dn.net/?f=P%20%3D%20300%5C%20N%20%5C%20%5Ctimes%20%20%5C%20%5Cfrac%7B80%20%5C%20kmh%5E%7B-1%7D%7D%7B3.6%20%5C%20km%20h%5E%7B-1%7D%2Fm%2Fs%7D%20%5C%5C%5C%5C%0AP%20%3D%20300%20%5C%20N%20%5Ctimes%2022.22%20%5C%20m%2Fs%5C%5C%5C%5C%0AP%20%3D%206%2C666%20%5C%20W)
The power of the engine at the given efficiency is calculated as follows;
![E = \frac{P_{out}}{P _{in}} \times 100\%\\\\ 60\% = \frac{P_{out}}{6,666} \times 100\%\\\\ 0.6 = \frac{P_{out}}{6,666} \\\\ P_{out} = 3,999.6 \ W](https://tex.z-dn.net/?f=E%20%3D%20%5Cfrac%7BP_%7Bout%7D%7D%7BP%20_%7Bin%7D%7D%20%5Ctimes%20100%5C%25%5C%5C%5C%5C%0A60%5C%25%20%3D%20%5Cfrac%7BP_%7Bout%7D%7D%7B6%2C666%7D%20%5Ctimes%20100%5C%25%5C%5C%5C%5C%0A0.6%20%3D%20%5Cfrac%7BP_%7Bout%7D%7D%7B6%2C666%7D%20%5C%5C%5C%5C%0AP_%7Bout%7D%20%3D%203%2C999.6%20%5C%20W)
Learn more about efficiency here: brainly.com/question/15418098
People who have been struck by lightning do not carry an electrical charge and can be touched is True.
heat lightning is lightning flashes in the sky that do not have the accompanying sound of thunder so false just like the others
Answer:
pressure, stress pascal N/m2
energy, work, quantity of heat joule N·m
power, radiant flux watt J/s
electric charge, quantity of electricity coulomb -