2 years ago

Wefnwiaedfgaeraeoefmwek :

Mathematics

1 answer:

Pavlova-9 [17]2 years ago

7 0

Answer:

whatdoesthatmean

Step-by-step explanation:

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A teacher needs to determine the percentage scores on her students' test. A student reccived a score of 59 points on a 65 point

Nookie1986 [14]

To find what percent a part is of the toal, divide the part by the total and multiply by 100.

percent = part/whole * 100%

percent = 59/65 * 100% = 0.90769... * 100% = 91%

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3 years ago

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A local am radio station broadcasts at a frequency of 764 khz. calculate the energy of the frequency at which it is broadcasting

pentagon [3]

The frequency of the emitted radio waves is:
$f=764 kHz = 7.64 \cdot 10^5 Hz$

The energy of a photon is given by:
$E=hf$
where h is the Planck constant and f is the photon frequency. Using the frequency given by the problem, we can find the energy of each photon of this radiation:
$E=hf=(6.6 \cdot 10^{-34} Js)(7.64 \cdot 10^5 Hz)=5.04 \cdot 10^{-28} J=5.04 \cdot 10^{-31} kJ$

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3 years ago

PLEASE HELP ME I NEED YOU

Temka [501]

Answer:

its c

Step-by-step explanation:

5 0

3 years ago

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