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Jlenok [28]
3 years ago
9

1. James drives 400 km in 5 hours to his grandmothers. What are the units for speed going to be?

Physics
1 answer:
Airida [17]3 years ago
6 0

Answer:

See the answer below

Explanation:

1. Speed is calculated as the ratio of distance and time. Hence, Jame's speed can be calculated as:

       400/5 km/hr = 80 km/hr

The unit for the speed would be km/hr. This can also be converted to m/s:

80 km = 80,000 m

1 hr = 3,600 s

80 km/hr = 80,000/3600 m/s = 22.22 m/s

2. Since James drove 400 km in 5 hours, the distance he drove is 400 km.

3. The time it took for James to get there is 5 hours.

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Longer wavelengths of light, such as _______, have ________ energy than shorter wavelengths, such as _________
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Answer:

Micro and radio waves.

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Explanation:

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Where,

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8 0
3 years ago
A proton moves perpendicular to a uniform magnetic field B at a speed of 2.30 107 m/s and experiences an acceleration of 1.70 10
anzhelika [568]

Answer:

Explanation:

Given the following :

Speed (V) = speed of 2.30×10^7 m/s

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Using the right hand rule provided by  Lorentz law:

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