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
polet [3.4K]
3 years ago
12

A 20 kg box is being pulled across a floor by a horizontal rope. The tension in the rope is 99 Newtons. The coefficient of frict

ion is 0.25. What is the force of friction on the box? What is the acceleration of the box?
Physics
2 answers:
fgiga [73]3 years ago
5 0

Answer:

friction = 49 N, a = 2.5 m/s/s

Explanation:

big brain

Burka [1]3 years ago
4 0
Yeah what that guy said lol
You might be interested in
What wave phenomena best describes the reason for the dark and light bands that
pickupchik [31]

Answer:

Interference

Explanation:

Interference is the phenomenon in which two waves superimpose to form a wave with smaller, larger or same amplitude.

There are two types of interference namely, constructive interference and destructive interference.

Constructive interference occurs when the waves are in phase and destructive interference occurs when the waves are out of phase.

In a double slit experiment, the two slits acts as sources of light and thus the waves combine to produce interference patterns. When the waves are in phase, that is the angle between them is 0°, they form a constructive interference pattern which gives rise to a light band. When the waves are out of phase, that is the angle between them is 180°, they form a destructive interference pattern which gives rise to a dark band.

Note also that diffraction patterns are also observed for wide slits but can be neglected for smaller slits.

4 0
3 years ago
A wire runs left to right and carries a current in the direction shown. What is the direction of the magnetic field at point Z?
Vanyuwa [196]
The correct option is out of the screen.

As the motion of positive charge is the direction of current in the wire. From the right-hand curl rule, the magnetic field direction will be outside the paper or the screen. As the <span>wire runs left to right and carries a current in the direction from left to right, the magnetic field lines will be outside the screen.</span>
5 0
3 years ago
Read 2 more answers
Which has more pressure, FIRST one gets all the points.
SSSSS [86.1K]

<u>Answer:</u>

area of point has more pressure.

<u>Explanation:</u>

formula's : pressure = force ÷ area

1st pressure,

200 ÷ 0.2 = 1000 Pa

2nd pressure,

200 ÷ 0.004 = 50000 Pa

<h3>Therefore the pressure on the area of the point is more.</h3>
8 0
3 years ago
A student analyzes data of the motion of a planet as it orbits a star that is in deep space. The orbit of the planet is consider
Valentin [98]

Explanation:

The orbit of the planet is considered to be stable and does not change over time. This means that the force of gravity and inertia are perfectly balanced. Leading to forward motion of Planet and moons under force of gravity of some other large body(Most probably stars).This is in turns leads to formation of orbit.

8 0
3 years ago
Read 2 more answers
PLEASE HELP
Gennadij [26K]

Answer:

3.675 m

Explanation:

a_{x} =0 v_{xo}=100 a_{y} =-g  v_{yo}=0

X-direction     | Y-direction

R=x_{o}+ v_{xo} t  | y=y_{o}+v_{yo}t+\frac{1}{2}a_{y}t^2

75=100t         |y=0+0+\frac{1}{2} (9.8)(0.75)

\frac{75}{100} =t             | y=3.675 m

0.75s=t              

Hope it helps

3 0
3 years ago
Other questions:
  • During the 1950s, nuclear bombs were tested on islands in the South Pacific. In one test, personnel on a nearby island received
    7·1 answer
  • A scientific law seeks to explain why an event occurred. True or false
    5·2 answers
  • A battery establishes a voltage V on a parallel-plate capacitor. After the battery is disconnected, the distance between the pla
    5·1 answer
  • When sound is created it travels to the car through a
    13·1 answer
  • A man strikes one end of a thin rod with a hammer. The speed of sound in the rod is 15 times the speed of sound in air. A woman,
    15·1 answer
  • The spectrum of Star A has an absorption line of hydrogen at 660.0 nm. The spectrum of Star B has an absorption line at 666 nm.
    15·1 answer
  • A car veers off course and runs straight into a brick wall. This is an example
    13·1 answer
  • Two objects A and B of mass 52.0 kilograms are placed in a line. Object A hits object B at a velocity of 7.25 meters/second. The
    13·1 answer
  • Which sequence lists the water cycle in order? A) condensation, evaporation, runoff/storage, precipitation B) evaporation, conde
    14·2 answers
  • The density of a glass is 2.5 g/cm3. if the glass breaks, what is the density of the smaller pieces​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!