2 years ago

A 45.2 kg softball player slides across dirt with Uk=0.340. What is her acceleration?

Physics

1 answer:

alisha [4.7K]2 years ago

8 0

Answer:

the ball didnt hit my face so

Explanation:

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Springfield's "classic rock" radio station broadcasts at a frequency of 102.1 mhz. what is the length of the radio wave in meter

Mila [183]

The frequency of the radio wave is:
$f=102.1 MHz = 102.1 \cdot 10^6 Hz$

The wavelength of an electromagnetic wave is related to its frequency by the relationship
$\lambda= \frac{c}{f}$
where c is the speed of light and f the frequency. Plugging numbers into the equation, we find
$\lambda= \frac{3 \cdot 10^8 m/s}{102.1 \cdot 10^6 Hz}= 2.94 m$
and this is the wavelength of the radio waves in the problem.

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3 years ago

________ is a measure of the internal energy that has been absorbed or transferred from one body to another, often due to a diff

stich3 [128]

Answer: Heat

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Heat is transferred from the body with higher temperature to the one with lower tempertature, this is so that in time they end up being at the same temperature.

This means that the one with lower temperature is the one who absorbs the heat, and the one with higher temperature transfer it.

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2 years ago

A 15 cm3 block of gold weighs 2.8 N. It is carefully submerged in a tank of mercury. One cm3 of mercury weighs 0.13 N.

BaLLatris [955]

The density of gold is 2.8 N / 15 = 0.18 units
The density of mercury is 0.13/1 = 0.13 units

Since the density of gold is more than density of mercury, it will sink.
Since the gold will sink, it will displace mercury, but less than its own volume

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2 years ago

3. Calculate the momentum of a 1200kg car with a velocity of 25m/s.

antiseptic1488 [7]

momm=massxvelocity

momm=1200x2.5=120x25=600x5=3000kgm/s

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3 years ago

A _____ map provides information about how and when rocks formed in a particular area.A.contourB.geologicC.topographic

givi [52]

I believe the answer is B

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2 years ago