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
Sever21 [200]
3 years ago
12

Andrew skis down a hill.

Physics
1 answer:
IceJOKER [234]3 years ago
5 0

Explanation:

gravitational potential energy at the top of the hill, which transforms into kinetic energy as he moves bottom of the hill

that's mean potential energy transfoms into kinetic energy

You might be interested in
CAN YOU HELP PLZZ & THX
maxonik [38]

Answer:

6.7x10 -7 C

Explanation:

The -7 is like a exponent on top, I think.

6 0
3 years ago
Will Mark BRAINLIEST!!!!!!!!!!!!!!!!!!!
vazorg [7]

3.

a)

r = distance of each mass in each hand from center = 0.6 m

m = mass of each mass in each hand = 2 kg

v = linear speed = 1.1 m/s

L = combined angular momentum of the masses = ?

Combined angular momentum of the masses is given as

L = 2 m v r

L = 2 (2) (1.1) (0.6)

L = 2.64 kg m²/s


b)

v' = linear speed when she pulls her arms = ?

r' = distance of each mass from center after she pulls her arms = 0.15 m

Using conservation of momentum , angular momentum remains same, hence

L = 2 m v' r'

2.64 = 2 (2) (0.15) v'

v' = 4.4 m/s


4 0
4 years ago
What is the sources of error and suggestion on how to overcome it in the hooke's law experiment?
goblinko [34]
In physics, Hooke's law is written in equation as:

F = kx

It states that the force F exerted on the spring is directly proportional to the displacement x by a constant called spring constant k.

In the laboratory, this is done in an experiment through the apparatus shown in the attached figure. The object experimented here is the spring, and you are to find the spring constant. A known mass of object is attached below the spring. That object carries a force in the form of gravitational pull in terms of weight. When the spring stretches, the displacement is measured with the use of the ruler.

There are a number of sources of error for this experiment. First, the reading from the ruler by the reader may be inaccurate. That's why digital balances are much more reliable because it minimizes human error. Reading the measurement on the ruler is subjective especially when you don't read it on eye level. Second, the force of the object might also be inaccurate if you use an unreliable weighing scale. Lastly, the apparatus might not be properly calibrated.

6 0
3 years ago
Aluminum and copper are good ____ because they don't have a strong hold on valence electrons. * a. Insulators b. Transistors c.
SOVA2 [1]

aluminum and copper are C.) conductors

6 0
3 years ago
TRUE OR FALSE. When non-conservative forces are present, the amount of work done increases with the length of the path.
Ymorist [56]

Answer:

True

Explanation:

When non-conservative forces are present, the amount of work done increases with the length of the path, this is true because, when a force is applied, the force does when and the non-conservative forces also do work. Since the non-conservative force work against the force  applied, this tend to increase the net work done by the applied force to compensate for the loss in energy due to the work done by the non-conservative forces.

6 0
3 years ago
Other questions:
  • Jupiter's moon Io has active volcanoes (in fact, it is the most volcanically active body in the solar system) that eject materia
    15·1 answer
  • The combustion of a single molecule of methane produces about 10 ev of energy. a methane molecule has a mass of 16 amu. the fiss
    13·1 answer
  • Find the net force on each box. 60 N 20 N 50 N 25 N​
    9·1 answer
  • An object moved 45 meters in 9 seconds, what is the speed?
    15·2 answers
  • BIOLOGY CLASS LIVE<br><br>meet.google.com/cyh-kzdn-hns​
    15·1 answer
  • 1. In a particular experiment to study the photoelectric effect, the frequency of the incident light and the temperature of the
    9·1 answer
  • What is the reaction force for sky diving?
    6·1 answer
  • Charlie's father built a tree house in their backyard. He constructed a spiral staircase around the tree trunk and installed a l
    5·1 answer
  • imagine that you’re riding in a car. the car suddenly begins to accelerate forward (positive acceleration). what do you feel as
    13·1 answer
  • A racing car has a uniform acceleration of 5 metre per second square what distance will it cover in 10 seconds after the start
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!