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
ser-zykov [4K]
3 years ago
12

Which force requires contact?

Physics
2 answers:
Minchanka [31]3 years ago
8 0

Answer:

A

Explanation: A is a example of Air resistance force, which is a contact force.

rosijanka [135]3 years ago
6 0
Answer is A. The force exerted by air as an object moves through it.
You might be interested in
A cat walks along a plank with mass M= 7.00 kg. The plank is supported by two sawhorses. The center of mass of the plank is a di
solong [7]

Answer:

Before the plank will tip cat will walk 1.652 m

Explanation:

Mass of the cat along with plank m_1=7kg

Center of mass of the plank d_1=0.850m

Mass of cat m_2=3.6kg

We have to find how far right of sawhorse B.

Plank will tip when weight of the cat about B is greater than the torque by the weight of the plank.

Balancing the the torque

m_1gd_1=m_1gd_2

7\times 9.8\times 0.850=3.6\times 9.8\times d_2

d_2=1.652m

5 0
3 years ago
A miner develops cancer of the esophagus. Ten years before, he had been exposed to radiation when he worked for a year in a mine
slamgirl [31]

D.) It is unlikely that a specific cause can be determined, but the treatment would likely be the same in either case.

3 0
3 years ago
Read 2 more answers
10 points
grandymaker [24]
The answer is B tell me if I am wrong.
6 0
2 years ago
If an object has a mass of 20 grams and a volume of 40 cm3, what is its density in g/cm3?
sattari [20]
Density = Mass/Volume 
So, given mass = 20 g and volume = 40 cm^3 
By substituting in above equation, Density = 20/40 = 0.5 g/cm^3
Hope it helps.

3 0
3 years ago
A 3 kg rubber block is resting on wet concrete. The coefficient of static friction is 0.3. What is the minimum force that must b
mrs_skeptik [129]

Answer:

You would have to find the friction force of the rubber block which would be found with the equation of Normal force (mass*gravity) times cooeficient of friction which would give 8.82 N for the amount of friction and because you need more force than 8.82 N (assuming gravity is 9.8)

8 0
2 years ago
Other questions:
  • 1.(16 pts.) Find the volume of the solid obtained by revolving the region enclosed by y = xex , y = 0 and x = 1 about the x-axis
    15·1 answer
  • Can some one pls give me the knowns and unknowns , formula and answer for question 4,5,6
    12·1 answer
  • Late one night on a highway, a car speeds by you and fadesinto the distance. Under these conditions the pupils of your eyes(aver
    8·1 answer
  • For an isothermal process, the work done by or on a system of ideal gas is equal to the change in what?
    15·1 answer
  • After leaving the end of a ski ramp, a ski jumper lands downhill at a point that is displaced 68.3 m horizontally from the end o
    5·1 answer
  • If you wanna make it easier you can number them going down 1,2,3, or 4 & just tell me the number
    13·1 answer
  • A force of 1000N is used to kick a football of mass 0.8kg find the velocity with which the ball moves if it takes 0.8 sec to be
    5·2 answers
  • Would you classify petroleum as a renewable or nonrenewable resource? Justify your answer in two or more complete sentences.
    12·1 answer
  • The achilles tendon is subjected to a large tension stress that results in a strain of 6%. if the unloaded tendon is 10 cm long,
    5·1 answer
  • The physics of wind instruments is based on the concept of standing waves. When the player blows into the mouthpiece, the column
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!