Which electromagnetic waves have the shortest wavelength and the highest frequency?

Physics

1 answer:

ra1l [238]3 years ago

5 0

It’s supposed to be gamma, what are your other options

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a 10kg box car rolls at 6m/s and crashes into a 20kg box car that is at rest. After the crash, both cars are stuck together. wha

Goshia [24]

Answer:

Their velocity is 0m/s because the first box was only 10 kg and the second box was double the weight

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3 years ago

Sarah wanted to know the velocity of an airplane traveling from Houston to Dallas. After recording the distance (in miles) and t

Mazyrski [523]

Answer:

Option B is the correct answer.

Explanation:

Velocity of a body = Displacement of the body/Time taken

Displacement and velocity are a vector. Both have direction and magnitude.

Displacement is generally distance with direction.

If we divide distance with time taken we will get speed of the airplane. Speed with direction is called velocity. So we need distance between Houston and Dallas, time taken by plane to travel from Houston to Dallas and direction of displacement from Houston to Dallas.

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Option B is the correct answer.

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3 years ago

A uniform steel girder of weight 22KN and of length 12m is lifted off the ground at one end by means of a crane. When the raised

Keith_Richards [23]

Answer:

Explanation:

For free body diagram see attached sheet .

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OB = √ ( 12² - 2² )

= 11.83 m .