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
jek_recluse [69]
3 years ago
14

If you are pushing a box toward your friend with a force of 20 N, and your friend is pushing the box toward you with a force of

30 N, what will happen to the box?
Physics
1 answer:
yan [13]3 years ago
7 0

Answer : the box will move backwards with a force 10 N

Explanation :

F1 = 20 N

F2 = 30 N

F = F2 - F1 = 30 - 20 = 10 N

You might be interested in
Light-rail passenger trains that provide transportation within and between cities speed up and slow down with a nearly constant
Nimfa-mama [501]

Answer:

25 m/s

Explanation:

Given that:

Initial speed, u = 4 m/s

Final velocity, V = 11 m/s

Time, t = 8 seconds

t2, = 16 seconds

Acceleration, a= (change in velocity) / time interval

a = (11 - 4) / 8

a = 7 / 8 = 0.875m/s²

Final velocity, v2 ;

Acceleration * t2

0.875 * 16 = 14

V2 = 14 m/s

Final speed : v + v2 = (11 + 14)m/s = 25m/s

3 0
3 years ago
a body weights 28N at a height of 3200km from the earth surface.What will be the gravitational force on that body if its lies on
alekssr [168]

Answer:

The object would weight 63 N on the Earth surface

Explanation:

We can use the general expression for the gravitational force between two objects to solve this problem, considering that in both cases, the mass of the Earth is the same. Notice as well that we know the gravitational force (weight) of the object at 3200 km from the Earth surface, which is (3200 + 6400 = 9600 km) from the center of the Earth:

F_G=G\,\frac{M_E\,m}{d^2} \\28\,\,N=G\,\frac{M_E\,m}{9600000^2}

Now, if the body is on the surface of the Earth, its weight (w) would be:

F_G=G\,\frac{M_E\,m}{d^2} \\w=G\,\frac{M_E\,m}{6400000^2}

Now we can divide term by term the two equations above, to cancel out common factors and end up with a simple proportion:

\frac{w}{28} =\frac{9600000^2}{6400000^2} \\\frac{w}{28} =\frac{9}{4} \\\\ \\w=\frac{9\,*\,28}{4}\,\,\,N\\w=63\,\,N \\

4 0
3 years ago
The moon is always circling around the earth, in a stable orbit. This movement is the reason we see the different phases of the
Darina [25.2K]
The answer would be B. This is because all planets in our galaxy orbit the sun.
3 0
4 years ago
which of the following is not necessary in a great summary?your investigayltion, your predicatio, excuses, possible errors?
zloy xaker [14]

Excuse are not acceptable


5 0
3 years ago
3. Is the relationship between the gravitational force and the mass directly proportional or
Dmitrij [34]

Answer:

Directly Proportional

Explanation:

Gravitational force can be calculated with the equation F = g(m1 * m2)/ r^2

So if we increase mass, force will also increase because mass is in the numerator.

5 0
3 years ago
Other questions:
  • I need help in my physics class and show me how it’s done
    15·1 answer
  • Calculate the heat energy needed to change the temperature of 2 kg of copper from 10°C to 110°C.
    14·2 answers
  • What is the approximate size of Earth’s magnetic field? Where are Earth’s magnetic poles? Where is the magnet that causes Earth’
    6·2 answers
  • g A 1.45-kg block is pushed against a vertical wall by means of a spring (k = 860 N/m). The coefficient of static friction betwe
    13·1 answer
  • It takes 120 minutes for a man to ride his bicycle up the road to Alpe d'Huez in France. The vertical height of the climb is 1,1
    5·1 answer
  • Two parallel wires are separated by 6.10 cm, each carrying 2.85 A of current in the same direction. (a) What is the magnitude of
    5·1 answer
  • Why do scientists believe that light is made of waves?
    14·1 answer
  • What is work? how do we solve for work?​
    13·2 answers
  • Write the following as powers of ten with one figure before the decimal point:
    7·1 answer
  • Is the process of science described in this lesson similar to your initial ideas about how science is carried out? Explain why o
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!