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
motikmotik
3 years ago
13

A mover pushes a 30 kg crate across a level florr with a force of 250 N, but the crate accelerates at a rate of only 5.83 m/s sq

uared because a friction force opposes the crate's motion. What is the magnitude of the force of friction?
Physics
1 answer:
arlik [135]3 years ago
7 0

Force of friction=75 N

Explanation:

we use Newton's second law of motion

F- Ff= ma

F = applied force=250 N

Ff= force of friction

a= acceleration= 5.83 m/s²

m= mass=30 kg

250- Ff= 30 (5.83)

Ff=250-30(5.83)

Ff=250-175

Ff=75 N

You might be interested in
An object is thrown off a cliff with a horizontal speed of 10 m/sec. After 3 seconds the object hits the ground. Find the height
Degger [83]

Answer:

223

Explanation:

1243rrheggqfggqff

4 0
3 years ago
If a spear is jabbeb exactly at that place where the fish appears in water, the fish is not killed
Korvikt [17]

You have learned your lesson well, Suhay. Your statement is correct.

The light rays from the fish BEND when they flow out of the water into the air. But our primitive brain still believes that the light rays flow STRAIGHT from the fish. The result is that the fish does not APPEAR to be at that place where it really is.

7 0
3 years ago
Two resistors A and B are arranged in series in one branch of a parallel arrangement. The other branch contains a single resisto
Ganezh [65]

Answer:

Explanation:

A and B are in series , Total resistance = Ra + Rb

This resistance is in parallel with single resistor C

Equivalent resistance Re = Rc x ( Ra + Rb ) / [Rc + ( Ra + Rb )]

Now this combination is in series in single resistance D .

Total resistance = Rd + Re

= Rd + { Rc x ( Ra + Rb ) / [Rc + ( Ra + Rb )] }

5 0
3 years ago
Football helmets are made with padding that helps reduce head injuries when a player collides with an object. Which bestexplains
Vlad1618 [11]

football hemets have pads that are filled with air and thick foam so when they are hit the foam asorbs the hit and the air keeps the hard outer shell of the helmet from hiting the players head

3 0
3 years ago
Read 2 more answers
Which astronomer supported the belief that earth was at the center fo the universe?
MissTica
B. Ptolemy believed that the earth was the center of the universe
4 0
4 years ago
Read 2 more answers
Other questions:
  • What is the energy (in joules) of an ultraviolet photon with wavelength 110 nm?
    14·1 answer
  • During which two phases would surfer’s most likely benefit
    9·2 answers
  • Angular diameter of the Sun from the Earth orbit is approximately 32′ (arc minutes), and the solar constant is 1.36kWt/m2 . (a)
    5·1 answer
  • How far can a person run in 15 minutes if he or she runs at an average speed of 16 km/hr
    13·1 answer
  • Newton's second law of motion is also known as the law of.......
    10·1 answer
  • What is the mean of the data set 2ml, 4ml, 6ml, 8ml, 8ml, 8ml
    5·1 answer
  • Terry can ride 30 miles in 2 hours. If his riding speed is
    10·2 answers
  • A glacier is eroding the land over which it passes. It moves at a rate of 2 m per day. Currently, the glacier is 80 km from a sm
    11·1 answer
  • A car moved 35 km to the South and Then 10 km to the North. What is its Displacement?
    9·1 answer
  • Which refers to a material that causes a wave to bounce off of it?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!