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
lara [203]
3 years ago
15

Starting from rest, a 5.00 kg steel sphere rolls down a frictionless ramp with a height of 4.00 m. What is the sphere's speed wh

en it reaches the bottom of the ramp? (Use 9.80 for the value of "g.")
Physics
1 answer:
elena-14-01-66 [18.8K]3 years ago
8 0

Answer:

8.85437 m/s

Explanation:

m = Mass of sphere = 5 kg

h = Vertical height = 4 m

g = Acceleration due to gravity = 9.80 m/s²

Applying conservation of energy we get

\dfrac{1}{2}mv^2=mgh

\\\Rightarrow v=\sqrt{2gh}

\\\Rightarrow v=\sqrt{2\times 9.8\times 4}

\\\Rightarrow v=8.85437\ m/s

The sphere's speed when it reaches the bottom of the ramp is 8.85437 m/s

You might be interested in
An example of an insulator is
Blizzard [7]
A, most non metals are insulators
5 0
2 years ago
Goodie morning<br>—————————<br><br>what is nitric acid?​
s344n2d4d5 [400]

Answer:

Nitric acid, also known as aqua fortis and spirit of niter, is a highly corrosive mineral acid. The pure compound is colorless, but older samples tend to acquire a yellow cast due to decomposition into oxides of nitrogen and water. Most commercially available nitric acid has a concentration of 68% in water.

Explanation:

3 0
3 years ago
Read 2 more answers
Which idea would most likely be dangerous for a student to think while entering a lab?
aleksley [76]
Your answer should be a i can figure out how the tools work as i go along
3 0
2 years ago
D. If a dog has a mass of 12 kg, what is its weight on Neptune?<br> 11.7N/kg
steposvetlana [31]

Answer:

133.8 N

Explanation:

Recall that the acceleration of gravity in Neptune is estimated as 11.15 m/s^2

Therefore, the weight of the dog on this planet would be:

Weight = mass x acceleration of gravity = 12 kg x 11.15 m/s^2 = 133.8 N

4 0
3 years ago
Astronomy can best be described as a/an
Alchen [17]
<span>Astronomy is a natural science that studies celestial objects and phenomena. More generally, all astronomical phenomena that originate outside Earth's atmosphere are within the purview of astronomy. Therefore, the correct answer to the question "Astronomy can best be described as a/an" is "study of objects beyond the Earth's atmosphere."</span>
3 0
3 years ago
Other questions:
  • Which is the best predictor of the radioactive nature of an isotope?
    12·2 answers
  • Three forces are exerted on an object placed on a slope in the figure. The forces are measured in Newton (N).
    12·2 answers
  • A term used to describe water that is safe to drink?
    15·1 answer
  • If a car skids 66 ft on wet concrete, how fast was it moving when the brakes were applied? (Round your answer to the nearest who
    10·1 answer
  • Suppose you apply a flame to heat 1 liter of water and its temperature rises by 3 C. If you apply the same flame for the same le
    8·1 answer
  • A substance that will change shape to fit its container but has a definite volume is in a phase of matter.
    8·2 answers
  • What are the characteristics of a gas ?
    12·2 answers
  • Need help on these questions
    8·1 answer
  • Plssss help I need help with this question I need a good grade on the test!!!
    11·2 answers
  • How can you find the area of a regular room?​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!