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
7

If the 50-kg crate starts from rest and achieves a velocity of v = 4 m/s

Physics
1 answer:
Kay [80]3 years ago
6 0

Answer:

P = 227 N

Explanation:

Assuming the crate is on horizontal ground and subject to a horizontal force.

F = ma

P - μmg = ma

P = m(a + μg)

P = m(v²/2s + μg)

P = 50(4²/(2(5))+ 0.3(9.8))

P = 227 N

You might be interested in
What two characteristics do electromagnetic waves vary in?
rosijanka [135]
They size of the wave and the time of a certain wave.
4 0
3 years ago
Read 2 more answers
Help me to answer my questions please
Andrei [34K]
2 is c
3 is a 
4 is b
5 is c
3 0
3 years ago
Some populations have cooperative relationships. This is where:
Ilia_Sergeevich [38]
C. Members of the same species work together for survival
5 0
2 years ago
A car travels 82 meters do North and 14 seconds the car turns around and travels 44 m due south in four seconds what is the magn
Yakvenalex [24]

Answer:

2.11 m/s

Explanation:

Take north to be positive and south to be negative.

Average velocity = displacement / time

v = (82 m + -44 m) / (14 s + 4 s)

v = 2.11 m/s

The velocity is positive, so it is 2.11 m/s north.  The magnitude of the velocity is 2.11 m/s.

8 0
3 years ago
30 points ᖗ☯ ͟ل͜☯ᖘ
Butoxors [25]
1. Magnetic properties of a substance depends on the structure of its valence electrons. It has something to do with orbitals so I suggest you study about molecular geometry of a compound/substance firstIt's the way a substance's atoms fit together, being pulled and pushed from all sides equally. exists in metallic bonds <span>if a substance is said to be magnetic, it is simply attracted by a magnet. if it is paramagnetic, it is repelled by a magnet.

2.</span>The magnetic field will be perpendicular to the electric field and vice versa<span> An electric field is the area which surrounds an electric charge within which it is capable of exerting a perceptible force on another electric charge. A magnetic field is the area of force surrounding a magnetic pole, or a current flowing through a conductor, in which there is a magnetic flux. A magnetic field can be produced when an electric current is passed through an electric circuit wound in a helix or solenoid. The relationship that exists between an electric field and a magnetic field is one of electromagnetic interaction as a consequence of associating elementary particles. The electrostatic force between charged particles is an example of this relationship.</span>
6 0
3 years ago
Other questions:
  • What protists do not have definite shape
    7·1 answer
  • Which measure of central tendency refers to the average of all the scores in a data set?
    12·2 answers
  • Can you answer this question please.
    14·1 answer
  • A 24 volt doorbell carries a current of 1/2 ampere. Calculate the resistance in the bell
    14·1 answer
  • Magnesium is an alkaline earth metal with an atomic number of 12. It’s in the third row in the periodic table. Which expression
    13·2 answers
  • An 8 Ω resistor is connected to a battery. The current that flows in the circuit is 2 A. Calculate the voltage of the battery.
    6·1 answer
  • What do we call the region around a magnet where it exerts its magnetic force?
    14·2 answers
  • Is it true or false that it is never sensible to calculate more than 100% of a number​
    8·1 answer
  • Can someone please help, ty!!<br> (Will mark brainliest)
    15·1 answer
  • Are you an antisocial person. Me honestly am
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!