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Alborosie
3 years ago
6

What is the gravitational potential energy of a 65.7 kg person standing on the roof of a 135 meter building?

Physics
1 answer:
horrorfan [7]3 years ago
8 0
For the purpose we will use the following equation for potential energy:
U = m * g * h
In the above equation, m represents the mass of the object, h represents the height of the object and g represents the gravitational field strength (9.8 N/kg on Earth).
When we plug values into the equation, we get following:
U= 65.7kg * 9.8 N/kg *135m = 86921.1 J = 86.92 kJ

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5 0
3 years ago
Which of the following describes the normal shape of a DNA molecule?
Rudiy27

Answer:

A. Two strands of nucleotides bonded together at their bases,

twisting to form a double helix

Explanation:

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5 0
2 years ago
LIst properties common to many organic compounds
stich3 [128]
Some properties I know are melting point<span>, </span>boiling point<span>, and index of </span>refraction<span>.</span>

7 0
3 years ago
Please help
inysia [295]

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3 0
3 years ago
A trumpet player, using her ear, hears 5 beats per second when she plays a note on her trumpet and simultaneously sounds a 440 H
german

<h2>Frequency of trumpet wire = 445 Hz</h2>

Explanation:

The given  frequency of tuning fork is 440 Hz . It produces 5 beats with trumpet wire . That means , the frequency of wire can be 440 ± 5

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Now the length of wire is increased , by which its frequency decreases . Because frequency is inversely proportional to length of wire .

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3 years ago
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