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
nekit [7.7K]
3 years ago
10

For the following situations, describe the contact and non-contact forces that are involved.

Physics
2 answers:
Sonja [21]3 years ago
8 0
I think is b not a 100% sure but maybe.
musickatia [10]3 years ago
7 0

Answer:

a. the book is exerting force down on the shelf (due to gravity) while the shelf is exerting force back up at the book.

b. when the soccer player kicks the ball, this is applied force. As the ball soars through the air and lands on the ground, the friction ends the movement of the ball.

c. the compass detects the Earth's natural magnetic feild. This force is non contact, since there is no physical touch between magnetic feilds and the compass.

d. when the child is just sitting on the hill on the sled, this is a contact force. The child is pushing down on the sled and the sled pushes back at the child. When he or she slides off down the hill, this contact force is put to a stop due to friction.

Explanation:

Explanation above for each situation.

You might be interested in
Planets orbit the Sun, while the Moon and other satellites orbit the Earth. Such orbital motion is the result of _______ and eac
Lorico [155]
Gravity ? that is possibly the answer
8 0
4 years ago
Which best describes a similarity between power plants that use water as an energy source and those that use wind as an energy s
disa [49]
The hydropower plant and wind turbines both uses kinetic energy to produce mechanical power and convert the mechanical energy using a generator to an electrical energy. They both have the process to produce energy but they differ in the source the hydropower plant uses water to whit the wind turbines power plant uses wind. Therefore the answer is letter B. 
3 0
3 years ago
Read 2 more answers
As speed increases, how does the potential, kinetic, and total energy levels change?
Anastaziya [24]
Potential equals kenecric at the bottom so potential would also increas
4 0
3 years ago
From the concepts you have learned in this module, how are you going to assess
Daniel [21]

Answer:

Find the explanation below.

Explanation:

Earth is properly designed to support life. This is seen in the favorable temperature that supports life, the water cycle that recycles water for plant and animal life, the atmosphere, energy, and nutrients.

1. Temperature: The temperature which is regulated by the different weather conditions such as the rains, snows, dry seasons all help to maintain a stable condition for life.

2. Water: The water cycle through processes like evaporation, condensation, precipitation, helps to ensure that there is never a lack of water in the earth. The numerous water bodies like the seas, oceans, rivers, lakes, also provide a habitat for some living things. Water makes up 70% of the earth.

3. Atmosphere: The atmosphere is a mixture of gases in the right proportions that are necessary for life. Oxygen, Nitrogen, Carbon, etc are released and inhaled by man and other living things. They are also involved in so many biochemical reactions that help in metabolism and catabolism.

4. Energy: Energy generated from the sun and within the earth is stored in various forms and is always conserved. This energy is converted to different states such as the potential, chemical, kinetic, mechanical forms to get work done and to release heat.

5. Nutrients​: Though cycles such as the carbon, nitrogen, oxygen, and phosphorous cycles, the earth maintains its stock of essential nutrients that help to sustain life.

6 0
4 years ago
Are any rocks that form from another rock as a result of change in blank or blank
charle [14.2K]
The correct answer is rock cycle
3 0
4 years ago
Other questions:
  • you are sitting in a cart at the top of a hill on a roller coaster. you have 10,500 j of gravitational potential energy. if your
    7·1 answer
  • ________ describes the unique sound quality or tone color of a sound.
    8·1 answer
  • A string fixed at both ends has a length of 1 m. With a frequency of 44 kHz (fourth overtone), standing waves are produced. Whic
    13·1 answer
  • Explain why the baking instructions on a box of cake mix are different for high and low elevations. Would you expect to have a l
    14·1 answer
  • Alloys are mixtures of ________.
    9·2 answers
  • Secondary evidence is the basis for drawing scientific conclusions. <br> a. True<br> b. False
    15·2 answers
  • How are engineers creating clothing that can charge your cell phone. Explain the science behind their innovation.
    13·1 answer
  • Calculate the wavelength of light that has a frequency of 5.2 x 1012 1/s.
    13·1 answer
  • What is the mass of a dinosaur that has the weight of 33000 N? Show your work.
    13·1 answer
  • A stone of weight 10N falls from the top of a 250m high cliff. a) Calculate how much work is done by the force of gravity in pul
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!