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
Kamila [148]
2 years ago
11

Could I please get some help l, will mark as Brianalist if right....​

Physics
2 answers:
miss Akunina [59]2 years ago
8 0

Answer:

Option 2

Explanation:

Weight of the box is being acted downwards due to gravity

However, based on Newton's third law (for every action (force) in nature there is an equal and opposite reaction), an equal force will act on the box by the table

tresset_1 [31]2 years ago
4 0

Answer:

B.

Explanation:

You might be interested in
For most people, getting 8 to 9 hours of sleep increases concentration, improves physical health, and improves one's mood.
olga2289 [7]
That statement is true
8 0
3 years ago
Read 2 more answers
Which of the following statements is false?
vladimir1956 [14]

An excited atom can return to its ground state by absorbing electromagnetic radiation is false about the electromagnetic radiation.

Option B

<u>Explanation</u>:

In the scope of modern quantum theory, the term Electromagnetic radiation is identified as the movement of photons through space. Almost all the sources of energy that we utilize today such as coal, oil, etc are a product of electromagnetic radiation which was absorbed from the sun millions of years ago.

Various properties of electromagnetic radiations are a directly proportional relationship between the energy and the frequency, Inverse proportionality between frequency and the wavelength, etc. Hence, we can conclude that an "excited atom" can never return to its ground state by assimilating electromagnetic radiation and the 2nd statement is false.

4 0
3 years ago
What is the wave speed of a 6 m wave with a frequency of 20 Hz?
andrew-mc [135]

Answer: Wave speed= frequency x wavelength

=20 x 3

=60 m/s

Explanation:

8 0
3 years ago
Which feature of an object affects its weight? Select three options.
Vadim26 [7]

Answer:mass of the object,how much force earth exerts on the object,and shape of the object

Explanation:

6 0
2 years ago
If the mass of both objects are doubled while the
lutik1710 [3]

Answer:

The force becomes 16 times what it is now.

Explanation:

The formula for gravitational force is

F = G * m1 * m2 / r^2

When you do what you have described, you are setting a stage that not even the USS Enterprise (Star Trek) can get out of. The increase is huge.

If you double m1 and m2 and don't do anything to r, you've already increased the force by 4 times. (2m1 * 2m2 = 4 * m1 * m2)

But you are not finished. If you 1/2 the distance, you are again increasing the Force by 4 times. 1 / (2r) ^2 = 1/ 4* r^2

Because this is in the denominator, the 1/4 is going to flip to the numerator.

So the total increase is going to be 4 * (4 * m1 * m2) = 16 * m1 * m2.

Think about what that means. If you were out golfing, your drives would be roughly 1/16 times as far as they are now. Also you would be lugging around 16 times your weight around the golf course. My feeling is that you would never finish 5 holes at that rate.

3 0
2 years ago
Other questions:
  • The rectangular boat shown below has base dimensions 10.0 cm × 8.0 cm. Each cube has a mass of 40 g, and the liquid in the tank
    11·1 answer
  • A 120 kg hoop rolls along a horizontal floor so that the hoop's center of mass has a speed of 0.220 m/s. How much work must be d
    14·1 answer
  • Which circuit is a series circuit
    14·1 answer
  • When a space shuttle was launched, the astronauts aboard experienced and acceleration of 29.0 m/s. If one of the astronauts had
    9·1 answer
  • WRONG ANSWERS WILL BE REPORTED
    10·1 answer
  • Explain the centripetal force or Newton's second law...
    11·2 answers
  • Which of the following is described here? "Point your skis straight down the fall line with your skis parallel and about a foot
    13·2 answers
  • Fun Fact:
    13·1 answer
  • Need help pls and explain also
    9·1 answer
  • The slower the particles in a substance move,
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!