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
OLga [1]
3 years ago
8

5. For the following actions, explainwhether the forces involved are balanced or a. You push a box until it moves.b. You push a

box but it doesn't move.c. You stop pushing a box and it slows down.

Physics
1 answer:
Viktor [21]3 years ago
3 0
The answers for this question are:

a. You push a box until it moves. = unbalanced
b. You push a box but it doesn't move. = balanced
c. <span>You stop pushing a box and it slows down. = unbalanced

As a general explanation for all the items, forces are considered balanced when they cancel each other out. This means that no net force is produced. A and C are unbalanced because one force was able to overcome the force exerted by the object.</span>
You might be interested in
A person must pull a rope 20 meters with a force of 200 N what is the work input?
tatiyna
Work done = force * distance
work done = 200 * 20
work done = 4000J
4 0
3 years ago
How are electric motors and generators similar? 
kotykmax [81]

Answer:

they both produce energy

Explanation:

7 0
3 years ago
A student attaches a block of mass M to a vertical spring so that the block-spring system will oscillate if the block-spring sys
Vlada [557]
WAAAAAAAAAAAAAAAAAAAAAAAAARRRRR
7 0
3 years ago
There is an electric field in the region between the two plates. The magnitude of this electric field is ed. This imposes anothe
krok68 [10]

Answer:

it is essential that the charge on the plates are of the same magnitude, but in the opposite direction

Explanation:

The configuration of parallel plates is called a capacitor and is widely used to create constant electric fields inside.

 To obtain this field it is essential that the charge on the plates are of the same magnitude, but in the opposite direction

This is so that the fields created by each plate can be added inside and subtracted from the outside of the plates

5 0
3 years ago
In a common but dangerous prank, a chair is pulled away as a person is moving downward to sit on it, causing the victim to land
Marina CMI [18]

Answer:

(a) \vec{J}=176.4\frac{kg*m}{s} \hat{j}

(b) F=2125.30N

Explanation:

(a) According to the law of conservation of energy, the potential energy of the person at 0.40 m is equal to its kinetic energy before the colision with the floor:

\Delta U=\Delta K\\mgh=\frac{mv^2}{2}\\v=\sqrt{2gh}\\v=\sqrt{2(9.8\frac{m}{s^2})(0.40m)}\\v=2.8\frac{m}{s}

This is the initial velocity in the negative y-direction. Impulse is given by:

\vec{J}=\Delta \vec{p}\\\vec{J}=m\vec{v_f}-m\vec{v_i}\\\vec{J}=63kg(0 \hat{j})-63kg(-2.8\frac{m}{s} \hat{j})\\\vec{J}=176.4\frac{kg*m}{s} \hat{j}

(b) The average force is:

F=\frac{J}{\Delta t}\\F=\frac{176.4\frac{kg*m}{s}}{0.083s}\\F=2125.30N

6 0
3 years ago
Other questions:
  • why can a liquid change to take the shape of its container but not expand to fill the container itself?
    14·2 answers
  • What product of the greenhouse effect could lead to more extreme weather events?
    8·1 answer
  • Science<br> Write two examples of heating appliances
    5·1 answer
  • Calculating Mass from Potential Energy A skier with a potential energy of 137,200 J waits on top of a ski jump that is 200 m hig
    14·2 answers
  • an eco friendly hotel is under construction. Which strategies will help hotel management reach its goal of being eco friendly
    13·1 answer
  • What is the angle θ in the triangle below? (Hint: Use an inverse trigonometric function.)
    14·1 answer
  • What is the kinetic energy of a 1200 kg roller coaster that is moving with a speed of 24.0 m/s. ?
    14·1 answer
  • All recorded measurements require a number followed by a _______ .
    5·1 answer
  • How long does it take a 5kW shower to use 25000J of energy?
    7·1 answer
  • Why does a block of plastic released under water come up to the surface of water.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!