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
lisov135 [29]
3 years ago
13

What causes a rolling object

Physics
1 answer:
Serjik [45]3 years ago
7 0
Gravity but when it is rolling it has kinetic energy.
You might be interested in
How does urban development affect earths environment
erastovalidia [21]
the polluted urban environment affects the health and quality of life
7 0
3 years ago
A bus travels 30km in 1/2h. What is it's average speed in km/h
Vadim26 [7]
If a bus travels 30 km in 1/2 hr, then in one hr, he can travel twice the distance.
30*2=60 km

Final answer: 60 km per hr
5 0
3 years ago
Which is an example of current electricity? <br>​
VARVARA [1.3K]
A. A child rubs a balloon
5 0
2 years ago
Two trains A and B of length 400 m each are moving on two parallel tracks with
Vinvika [58]

<u>Answer:</u>

<em>The initial distance between the trains is 1450 m. </em>

<u>Explanation:</u>

In the question two trains are of equal length 400 m and moves at a uniform speed of 72 km/h. train A is moving ahead of train B. If the train B has to overtake train A it should accelerate.

Train B’s acceleration  is 1m/s^2   and it accelerated for 50 seconds.

<em>a=1 m/s^2</em>

<em>t=50 s </em>

<em>initial speed u=72km/h </em>

<em>we have to convert this speed into m/s  </em>

<em>u=72 \times 5/18=20 m/s</em>

<em>Distance covered in accelerating phase  S=ut+1/2  at^2  </em>

<em>=20 \times 50+1/2 \times 1 \times 50^2</em>

<em>=1000+1250=2250 m </em>

If  a train is just behind another, the distance covered by the train located behind during overtaking phase will be equal to the sum of the lengths of the trains.

<em>Here length of train A+length of train B=400+400=800 m</em>

<em>Hence the initial distance between the trains = 2250-800=1450 m</em>

6 0
3 years ago
True or False: A cross product is an equation which states that two ratios are equal.
elena-14-01-66 [18.8K]
I think the answer would be false
6 0
2 years ago
Read 2 more answers
Other questions:
  • What is the s. i unit of current​
    15·2 answers
  • The law of reflection states that the angle of reflection is equal to the angle of
    8·1 answer
  • What is the relationship between potential energy and kinetic energy?
    12·1 answer
  • How do invasive species spread? identify three methods.Why do invasive species pose such a threat?
    15·1 answer
  • A hand-held video game is powered by batteries. After playing the game for several minutes, a student notices that the game feel
    6·1 answer
  • The theory that attitudes will be formed and changed according to one’s actual behaviors is the __________ theory. A. learning B
    11·2 answers
  • B) Write the name of the devices<br>which are shown in the given<br>figures and write their uses​
    6·1 answer
  • SOMEONE PLEASE HELP PLEASE PLEASE
    14·1 answer
  • State the law of conversation of momentum​
    13·1 answer
  • A heat engine is used to convert heat into which of the following?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!