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
77julia77 [94]
3 years ago
8

Pablo and Charles were conducting an investigation where they were measuring the energy of a glass marble as it rolled down a ra

mp. According to their calculations, the total energy of the marble decreased.
Which statement below is the best explanation for the decrease in total energy?
Physics
2 answers:
JulsSmile [24]3 years ago
5 0

Answer:

The energy decreased because heat resulted from the friction between the marble and the ramp.

Explanation:

I think its this answer because i think is has somthing to do with friction

Fantom [35]3 years ago
3 0

Answer:

it will be B

Explanation:

You might be interested in
Two cars leave Calgary at the same time, travelling in opposite directions. Their average speeds differ by 5 km/h. After 2 h, th
dimulka [17.4K]
Let the first car's average speed be x

The second car's speed would be x+5

2(x+(x+5))=210

2x+5=105

2x=100

x=50

So the speed of the slower car is 50mph, and the speed of the faster car is 55mph


8 0
3 years ago
Read 2 more answers
A boy pulls his toy on a smooth horizontal surface with a rope inclined at 60 degrees to the horizontal. If the effective force
lana66690 [7]
I'm thinking that you're supposed to divide. So you would divide 5 into 60 and get 12
6 0
3 years ago
Read 2 more answers
What exerts a centripetal force on a person running around a curve?
Eduardwww [97]

Answer:

The inertial force of the body

Explanation:

Everybody that is moving in a curved path has an inertial force called centrifugal force.

The counterforce of the centrifugal force is called the centripetal force. It also acts on every rotating body.

This force is always directed towards the center of the origin of the curve.

The velocity of the object changes its direction and magnitude at any instant of time. But the speed and angular velocity of the object remains the same for uniform circular motion.

So, according to the Newtonian mechanics, it is the inertial force of the body responsible for the centripetal force.

5 0
3 years ago
Can an element be a molecule
Serga [27]

an element can make a molecule. so technically yes.

6 0
3 years ago
Read 2 more answers
What is being done about emission controls?
Licemer1 [7]
The original Clean Air Act of 1970 gave the US EPA board authority to regulate motor vehicle pollution and the agencies emission control policies and requirements have become progressively more stringent since then
5 0
3 years ago
Other questions:
  • What two elements are named after Dimitri Mendeleev?
    10·2 answers
  • Is it possible for an object moving with a constant speed to accelerate? explain?
    11·1 answer
  • A 200g particle oscillating in SHM travels 66cm between the two extreme points in its motion with an average speed of 110cm/s. F
    9·1 answer
  • Displacement vectors of 4 km north, 2 km south, 5 km north, and 5 km south combine total displacement of
    12·2 answers
  • Earth's core is composed primarily of _____. -iron oxides and magnesium -silicon and iron -iron and nickel -magnesium and nickel
    11·1 answer
  • Could anyone help me with this question?
    15·2 answers
  • Why should people pay attention to scientists when making decisions?
    5·1 answer
  • A 1.35 kg block is pulled across a
    6·1 answer
  • If there were no dark energy in the universe, the value of __________ would solely determine the evolution and fate of the unive
    7·1 answer
  • What units are associated with unit vectors i , j and k
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!