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
UkoKoshka [18]
3 years ago
14

An object with a kinetic energy of 1125J has a mass of 250kg. What is its velocity?

Physics
1 answer:
Elena-2011 [213]3 years ago
7 0

Answer:

3 m/s

Explanation:

Kinetic energy of a body is given by the formula K= {1\over2} m v^2. Let's replace everything we have and solve for what's left.

1125J = {1\over2}\cdot 250 kg \cdot v^2

v^2 ={ 1125 \cdot 2 \over 250}} or v= 3 {m \over s}

You might be interested in
If a roller coaster train has a potential energy of 1,500 J and a kinetic energy of 500 J as it starts to travel downhill, its t
Lina20 [59]
E_{total} = KE + PE \\ KE = 500 J \\ PE = 1500 J \\ E_{total} = 500J + 1500J \\ E_{total} = 2000J
4 0
4 years ago
Read 2 more answers
Why the reflected rays for a rough surface do not result in the formation of an image.
Oksana_A [137]

Answer:

this is because the light rays get reflected irregularly

Explanation:

8 0
3 years ago
What are the five practices in scientific inquiry
nata0808 [166]
1. Learners are engaged by scientifically oriented questions.
2. Learners give priority to evidence, allowing them to develop and
evaluate explanations that address scientifically-oriented questions.
3. earners formulate explanations form evidence to address scientifically
oriented question
4. Learners evaluate their explanations in light of alternative explanations,
particularly those reflecting scientific understanding.
5. Learners communicate and justify their proposed explanations.
5 0
3 years ago
On a hot summer day, you and your friends decide to have a picnic at the park. To keep your food fresh you pack your lunch in a
g100num [7]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The <u>Fruit juice </u> should be put in the cooler, because <u>it has the greatest heat capacity</u> and will therefore, <u>absorb the most heat for each degree it increases in temperature.</u>

Explanation:

in order to understand the answer above we need to know what specific heat capacity is

       Specific heat capacity  can be defined as the amount of heat required to raise the temperature of a unit mass of a substance by one degree  

     Looking at the specific heat of each substance suggested we see that the fruit juice has a higher specific heat capacity than others this is because it contains a higher amount of water , generally liquid states of substances have a higher specific heat capacity than other states. The specific heat capacity of fruit juice being the highest among the suggested substances means that it can absorb  more heat for each degree temperature of refrigerator.

8 0
4 years ago
Which watch is used by scientists for correct measurement of time?
timurjin [86]

Answer:

It’s the atomic clock

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • A. Two point charges totaling 7.50 µC exert a repulsive force of 0.100 N on one another when separated by 0.911 m. What is the c
    6·1 answer
  • A small smooth object slides from rest down a smooth inclined plane inclined at 30 degrees to the horizontal. What is (i) the ac
    10·1 answer
  • A single-phase transformer has a turns ratio of 20,000/5,000. If a DC voltage of 50 V is applied to the primary winding, what wi
    10·1 answer
  • How do you find speed of a ball at maximum height
    13·1 answer
  • How can you break open a coconut without ANY tools, only your hands, that means no rocks, no hammers, no special tools, and don'
    13·1 answer
  • When white light is passed through a prism, it will
    6·2 answers
  • Mary has a mass of 40 kg and sprints at 1 m/s. How much kinetic energy does she have?
    11·1 answer
  • If you can't test an explanation through experiment,
    14·1 answer
  • What type of image is formed by the following mirror?
    10·1 answer
  • 10 POINTS!! SPACE QUESTION!!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!