1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nirvana33 [79]
3 years ago
7

A young diver is practicing his skills before an important team competition. Use the diagram below in order to analyze the energ

ies of the diver and complete the statements below.
Where m = mass (kg), g = 9.8 m/s2, v = velocity (m/s), h = height (m), KE = kinetic energy (J), and GPE = gravitational potential energy (J).
Use the equations above to answer the following questions.

A diver with a mass of 90 kg is at a height of 10 m, and he has not jumped off of the board yet (v = 0 m/s). When the diver reaches a height of 5 m (Point C), his gravitational potential energy is

A. 1350 J

B. 8820 J

C. 4410 J

D. 0 J

and his velocity is

E. 4.5 m/s

F. 0 m/s

G. 3.2 m/s

H. 9.9 m/s

Please help will mark brainliest

Physics
2 answers:
Butoxors [25]3 years ago
6 0
The answer of a young diver is practicing his skills before an important team competition use the diagram below in order to analyze thee energies of the D
xxTIMURxx [149]3 years ago
6 0

Answer: The potential energy is C 4410 J and the Velocity is 4.5 m/s

Explanation:

I hope this helps:)

You might be interested in
A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30° relative to the normal. If the index of
son4ous [18]

Answer:

<h2>35</h2>

Explanation:

According to snell's law which states that the ratio of the sin of incidence (i) to the angle of refraction(n) is a constant for a given pair of media.

sini/sinr = n

n is the constant = refractive index

Since the diver shines light up to the surface of a flat glass-bottomed boat, the refractive index n = nw/ng

nw is the refractive index of water and ng is that of glass

sini/sinr = nw/ng

given i = 30°, nw = 1.33, ng = 1.5, r = angle the light leave the glass

On substitution;

sin 30/sinr = 1.33/1.5

1.5sin30 = 1.33sinr

sinr = 1.5sin30/1.33

sinr = 0.75/1.33

sinr = 0.5639

r = arcsin0.5639

r ≈35°

angle the light leave the glass is 35°

7 0
3 years ago
Coal burns in a furnace, producing light and heat. This reaction is
olasank [31]

The reaction is Exothermic

8 0
3 years ago
Read 2 more answers
Imani stirs a cup of hot sencha tea with a cool silver spoon. She notices that the silver spoon becomes warmer. What energy chan
Lina20 [59]

Answer:

D. The tea loses heat to the spoon causing the spoon to become warmer

Explanation:

When the silver spoon at a lower temperature than the tea, is added to the tea, it makes thermal contact. Hence, the heat transfer starts between the two until the equilibrium is reached. We know that the heat transfer takes place from the body with a higher temperature to a body with a lower temperature. As a result, the body with higher temperature loses heat and its temperature lowers down. While the body with a lower temperature gains heat and its temperature rises.

Therefore, the correct option is:

<u>D. The tea loses heat to the spoon causing the spoon to become warmer</u>

7 0
3 years ago
The sum of kinetic energy and potential energy within a system is called
SashulF [63]

Answer:

mechanical energy.

Explanation:

7 0
3 years ago
Read 2 more answers
What you filling your heart with <br>oxygen and blood
svlad2 [7]

Answer:

Explanation:

                    The right side of your heart receives oxygen-poor blood from your veins and pumps it to your lungs, where it picks up oxygen and gets rid of carbon dioxide. The left side of your heart receives oxygen-rich blood from your lungs and pumps it through your arteries to the rest of your body.

        #I AM ILLITERATE

5 0
3 years ago
Read 2 more answers
Other questions:
  • the ratio of kinetic energy to the potential energy of a certain object of mass m at a height of 40 m above ground level is 2:1.
    13·1 answer
  • Watt, which is a unit of power, is equal to ____ a) a joule divided by a second b) a joule times a meter c) a joule times a seco
    7·2 answers
  • A string fixed at both ends has a length of 1 m. With a frequency of 44 kHz (fourth overtone), standing waves are produced. Whic
    13·1 answer
  • Which resistors in the circuit must have the same amount of charge passing through each second?
    12·1 answer
  • All of the following are true for slow-motion sequences EXCEPT a. slow motion ritualizes movement. b. slow motion brings gracefu
    10·2 answers
  • When an objects total mechanical energy is conserved and it is dropped from rest how does the objects initial potential energy c
    13·1 answer
  • Can someone please tell me how to solve the question below. Thank you!! If 550-nm light is incident normally on a diffraction gr
    10·1 answer
  • Table B:Convection (Cold Water) Time (minutes : seconds) Food Coloring Movement 0:30 1:00 1:30 2:00 2:30 3:00
    15·1 answer
  • Help please :)<br><br> Infrared waves are transmitted by ....... ?
    7·2 answers
  • A skateboarder is moving at the speed of 3 m/s2. while traveling, the skateboard comes to a complete stop. The skateboarder howe
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!