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Andrews [41]
2 years ago
10

Which statement best defines work? A. Work is the time it takes to move an object once acted upon by a force. B. Work occurs whe

n balanced forces act on an object and cause movement in the direction of these forces. C. Work occurs when a force causes motion of an object, and this motion is in the same direction of the applied force. D. Work is the distance over time that an object moves once acted on by a force.
Physics
2 answers:
BigorU [14]2 years ago
4 0

a. work is the time it takes to move an object once acted upon by a force


Nitella [24]2 years ago
4 0
Work is best defined as occurring when a <span>force causes the motion of an object, and this motion is in the same direction of the applied force. Work can be calculated by the following formula: w = fxd or work equals force times distance.</span>
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I know that 4. Is wave 2 and 5. Is wave 3.
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3 years ago
If a FM radio station broadcasts at 80. 3 MHz (megahertz), what is its wavelength in m (speed of light 3. 0 x 108 m/s)
hammer [34]

Answer:

Wavelength = 3.74 m

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In order to find wavelength in "metres", we must first convert megahertz to hertz.

1 MHz = 1 × 10⁶ Hz

80.3 Mhz = <em>x</em>

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The formula between wave speed, frequency and wavelength is:

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DochEvi [55]

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\eta = \frac{0.051}{0.22} = 0.23

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