Answer:
Explanation:
Given
Required
Determine the speed of the jet
The speed is calculated as:
Substitute 4800 km for Distance and 6hr for Time
<em>Hence, the speed of the commercial jet is 800km/hr</em>
Resistance ∞ (proportional) length
resistance ∞ 1/ area
therefore,
(the constant that we take is known as the resistivity)
resistance = (resistivity*length )/ area
resistivity = (resistance * area ) / length
= (3 * 45) / 3 = 135/3 = 45 Ωm
in short your answer is 45 Ωm
To find wave speed, you multiply the wavelength by the frequency. This means it is 8 times 11. This gives you 88. That means the answer is 88mm/s
In a rear-end collision, occupants are thrown towards the BACK of the vehicle.
Train has the most momentum if they were all traveling 50 mph
<u>Explanation:</u>
- A train can have the most momentum even if it is moving slowly because it has a large mass if they were all traveling 50 mph.
- In simple words, momentum can be described as the amount of motion of a moving body, estimated as a product of its mass and velocity.
- <u>Momentum= mass x velocity</u>
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