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
svp [43]
2 years ago
13

A block of mass 5 kg is descending with a constant velocity on an inclined plane at 30°. What is the value of the frictional for

ce?
Physics
1 answer:
sattari [20]2 years ago
4 0

Answer:28.9N

Explanation:

F=UR R=mg R=5×10 R=50N

U=tan© U=Tan30 U=1/√(3)

F=UR F=1/√(3) ×50

F=28.9N

You might be interested in
3.
weeeeeb [17]

Answer:

I.72m/s²

II.8m/s²

Explanation:

acceleration equal velocity² divided by length

8 0
2 years ago
A transformer has a 240 V primary and a 60 V secondary. With a 5 ohm load connected, what is the primary current?
musickatia [10]

Answer:primary current is 3A

Explanation:

primary voltage Vp=240V

secondary voltage Vs=60V

resistance 5Ω

primary current in the circuit is

I_{P} =I_{S} \frac{V_{S}}{V_{P}}\\I_{P} =\frac{V_{S}}{R}  \frac{V_{S}}{V_{P}}\\I_{P}=\frac{60\times 60}{5\times 240\\}\\I_{P}=3 A

4 0
3 years ago
A car travels 6 m north for 2 seconds and 8 m south for 5 seconds. What is the car's
Degger [83]
2 m/s. 6+8/2+5 = 14/7 = 2
8 0
1 year ago
Read 2 more answers
What is transferred by all types of waves? A. energy B. electrons C. heat D. matter
djyliett [7]
<span>The question is what do all types of waves transfer. Waves, both mechanical and electromagnetic are disturbances that transfer energy without transporting matter. It doesnt matter wether they are propagating trough a medium or trough vacuum. Therefore the correct answer is A. energy.</span>
3 0
3 years ago
Read 2 more answers
What can you conclude about x-rays compared to microwaves?
Alinara [238K]
It is D. X rays have a shorter wavelength than microwaves.
6 0
2 years ago
Read 2 more answers
Other questions:
  • Let at time t1 means?
    6·1 answer
  • Is loudness affected by change in frequency? Explain<br><br><br> I will mark you the brainliest
    11·1 answer
  • Your classmate states that only precious minerals, such as diamonds, are valuable. Based on your lesson on the rock cycle, you _
    6·2 answers
  • Arrange the following kinds of electromagnetic radiation in order of increasing wavelength: infrared, green light, red light, ra
    6·1 answer
  • A homeowner is trying to move a stubborn rock from his yard. By using a a metal rod as a lever arm and a fulcrum (or pivot point
    10·1 answer
  • How high has a 45 g golf ball been driven if it has a potential energy of 2.06 J?
    7·2 answers
  • I need help ASAP.
    7·2 answers
  • A car slows down uniformly from a speed of 21.0m/s to rest in 6.00s. How far did it travel in that time?
    5·1 answer
  • 5. Use of geothermal energy is not is not possible to generate electricity in Nepal​
    9·1 answer
  • An electron moves in a circular path in a region os space filled with a uniform magnetic field B= 0.4 T. to double the radius of
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!