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2 years ago

8

One of the frequencies used to transmit and receive cellular telephone signals in the United States is 985 MHz. What is the wave

length in meters of these radio waves

1 answer:

tia_tia [17]2 years ago

5 0

Answer:

approximately 304358

Explanation:

wavelength = speed / frequency

speed of an electromagnetic wave is 299,792,458 m/s in a vacuum

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Answer:

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3 years ago

tiny-mole [99]

Answer: 14.5 N

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3 years ago

During a testing process, a worker in a factory mounts a bicycle wheel on a stationary stand and applies a tangential resistive

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Answer:

616.223684211 N

Explanation:

$F_r$ = Resistive force on the wheel = 115 N

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$I=mr_1^2\\\Rightarrow I=1.7\times 0.25^2\\\Rightarrow I=0.10625\ kgm^2$

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Torque is given by

$\tau=Fr_2-F_rr_1\\\Rightarrow F=\dfrac{\tau+F_rr_1}{r_2}\\\Rightarrow F=\dfrac{0.520625+115\times 0.25}{0.0475}\\\Rightarrow F=616.223684211\ N$

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3 years ago

Explain how the situation shown above would be different if the skier experiences friction while traveling downhill. Include the

aleksandrvk [35]

Answer:

The force of friction acts in the direction opposite to the direction of motion. If friction would have been applied to the skier it would have resulted in a lower velocity and less kinetic energy.

Explanation:

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3 years ago

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4 years ago

Read 2 more answers