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
Sladkaya [172]
3 years ago
9

Suppose that you want to move a heavy box with mass 30.0 across a carpeted floor. You try pushing hard on one of the edges, but

the box does not move. Suppose that you are pushing against the box from an angle 30.0 above horizontal with a force of magnitude 240 . What is the magnitude of the friction force acting on the box? ...?
Physics
1 answer:
timurjin [86]3 years ago
7 0
The solution to the problem is as follows:
Normal force is m*g plus 240 N*sin30. 
<span>30 kg*9.8 m/s^2 + 240 N*sin30 = 414 N
</span>
I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
You might be interested in
6kg of cold water at 10°c is added to 6kg of hot water of 100°c what is the value of temp after the water is mixed​
Hunter-Best [27]

Explanation:

so sorry

☹☹☹

don't know but please mark me as brainliest please

5 0
3 years ago
If you add air to a flat tire through a single small entry hole, why does the air spread out to fill the tire
Natali [406]
The tire fills up just like any thing else that holds air when u pump a ball or tire up it fills all the way up cause it is a small confined space and after filling it with air the atoms of the air fill the tire up
7 0
3 years ago
Read 2 more answers
True or false conceptual physics 2 questions from chapter 25.
Arlecino [84]

Answer:

Explanation:

1) TRUE; potential difference can be calculated using path integral. Since the electric field is a conservative, the potential difference can be calculated using any path.

2) TRUE; since potential due to a charge is inversely dependent on distance, at infinity the potential will be almost zero.

3) TRUE, W = q.VBA.

4) FALSE; eV is a unit for work (or) energy.

5) TRUE; since the electric force is conservative force. There will be no loss in energy, the decreased potential energy will be coverted to kinetic energy.

6) FALSE; in the direction of electric field the potential decreases.

7) FALSE; equipotential surface is perpendicular to the electric field lines.

8) FALSE; electrostatic potential is scalar quantity. It depends only on the charge and distance from it.

9) FALSE; Inside a conductor the electric field is zero but the electric potential is constant at the value that is at the surface of the conductor.

10) TRUE; as long as the field is being measured outiside the body the bodies act as point charges. So electric fields due to all types of bodies charged identically will be equal.

3 0
3 years ago
A generator has a square coil consisting of 269 turns. The coil rotates at 113 rad/s in a 0.222-T magnetic field. The peak outpu
Natalka [10]

Answer:

length of one side of the coil is 0.1083 m

Explanation:

given data

no of turn = 269

coil rotates = 113 rad/s

magnetic field = 0.222-T

peak output = 79.2 V

solution

we will apply here formula for maximum emf induced in a coil that is

εo = N × A × B × ω    ........................1

and here Area A = l²

so

l = \sqrt{A}

put here value of A from equation 1

I = \sqrt{\frac{\epsilon _o}{N\times B\times \omega} }  

put here value and we will get

l =  \sqrt{\frac{79.2}{269\times 0.222\times 113}}

l = 0.1083 m

5 0
4 years ago
Read 2 more answers
1) The smallest part of an element that behaves like the element is the atom.
Mandarinka [93]

Here are the answers: 

1. False - Molecules is the smallest part of an element that behaves like the element. 

2. False - The nucleus contains both protons and neutrons

3. True

4. True

5. A. Nucleus 

6. D. Neutron

7. B. Protons and Neutrons

8. C. Electron

9. C. 6

10. C.6

5 0
4 years ago
Other questions:
  • Scientists can use spectral analysis of stars to determine which of the following?
    6·2 answers
  • Please help me. I don’t understand this.
    12·1 answer
  • Why couldn't the Royal Society publish Newton's Principia?
    15·1 answer
  • Question 2 (1 point)<br> The distance traveled by a race car is 7 km in 100 sec. What is its speed?
    15·1 answer
  • One hazard of space travel is debris left by previous missions. There are several thousand objects orbiting Earth that are large
    8·1 answer
  • East-West orbits are best for:
    10·1 answer
  • You have two steel solid spheres. sphere 2 has twice the radius of sphere 1. part a by what factor does the moment of inertia i2
    9·1 answer
  • An object is realsed From rest . how far does it fall during the second second of fall?​
    9·1 answer
  • A 1200 kg car traveling east at 4.5 m/s crashes into the side of a 2100 kg truck that is not moving. During the collision, the v
    8·1 answer
  • Một dây nhôm dài 10 m khi ở 25 độ C. Biết khi nhiệt độ tăng thêm 1 độ C thì chiều dài 1m dây nhôm sẽ tăng thêm 0,024mm.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!