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
bogdanovich [222]
2 years ago
14

When do i know if the acceleration (a) in newtons second law is 0? ​

Physics
1 answer:
alisha [4.7K]2 years ago
3 0

Answer:

When the sum of all forces applied to the object is 0.

Explanation:

N2L states that net force equals an object's mass times its acceleration (F = ma). If the net force is 0, the acceleration of the object is 0.

On the second note, when an object has 0 acceleration (which means it has a constant velocity), it is in equilibrium (N1L).

You might be interested in
Which test was conducted on the skin found under the victim’s nails
DENIUS [597]

. Underclothes; Bedding; Dirty laundry; Fingernail scrapings; Cups/bottles ... A cigarette butt found at a crime scene may contain valuable DNA material in the dried ... DNA evidence from both the victim's blood and the perpetrator's skin cells may ... DNA testing must be conducted in a laboratory with dedicated facilities and ...

5 0
3 years ago
Read 2 more answers
Bob and John are pulling in different directions. If Bob is pulling to the right with a force of 10N, and John is pulling to the
Murljashka [212]

Answer:

The net force on the box is 2 N to the left.

The box will move to the left.

The acceleration on the box is 0.5 m/s^2 to the left.

Explanation:

Let's say movement to the right is positive and left is negative.

Bob: +10 N

John: -12 N

Add those together and you get a net force of -2 N, and the negative sign means that the box is moving to the left.

For the acceleration:

Fnet = ma

-2 = (4 kg)a

a = -0.5 m/s^2

Again, the negative sign in this answer means the box is being accelerated to the left.

4 0
3 years ago
What is in the boron family with 3 valence electrons
olganol [36]
Boron, Aluminum, Gallium, Indium, Thallium
7 0
3 years ago
You are a scientist trying to develop a technology that can be used to power wrist watches. Which type of electromagnetic wave w
Salsk061 [2.6K]
Microwave because they are powerful and available can be d answer
3 0
3 years ago
Read 2 more answers
Two power lines run parallel for a distance of 222 m and are separated by a distance of 40.0 cm. if the current in each of the t
earnstyle [38]
1) Magnitude of the force:

The magnetic field generated by a current-carrying wire is
B= \frac{\mu_0I}{2 \pi r}
where
\mu_0 is the vacuum permeability
I is the current in the wire
r is the distance at which the field is calculated

Using I=135 A, the current flowing in each wire, we can calculate the magnetic field generated by each wire at distance 
r=40.0 cm=0.40 m, 
which is the distance at which the other wire is located:
B= \frac{\mu_0 I}{2 \pi r}= \frac{(4 \pi \cdot 10^{-7} N/A^2)(135 A) }{2 \pi (0.40 m)}=6.75 \cdot 10^{-5} T

Then we can calculate the magnitude of the force exerted on each wire by this magnetic field, which is given by:
F=ILB=(135 A)(222 m)(6.75 \cdot 10^{-5}T)=2.03 N

2) direction of the force: 
The two currents run in opposite direction: this means that the force between them is repulsive. This can be determined by using the right hand rule. Let's apply it to one of the two wires, assuming they are in the horizontal plane, and assuming that the current in the wire on the right is directed northwards:
- the magnetic field produced by the wire on the left at the location of the wire on the right is directed upward (the thumb of the right hand is directed as the current, due south, and the other fingers give the direction of the magnetic field, upward)

Now let's apply the right-hand rule to the wire on the right:
- index finger: current --> northward
- middle finger: magnetic field --> upward
- thumb: force --> due east --> so the force is repulsive

A similar procedure can be used on the wire on the left, finding that the force exerted on it is directed westwards, so the force between the two wires is repulsive.
6 0
3 years ago
Other questions:
  • A proton is released in a uniform electric field, and it experiences an electric force of 2.36×10−14 N toward the south. (a)What
    12·1 answer
  • A shot putter releases the shot some distance above the level ground with a velocity of 12.0 m/s, 51.0 ∘above the horizontal. Th
    9·1 answer
  • Which property remains unaffected during the rock cycle?
    6·2 answers
  • Explain how ozone in the atmosphere affects visible light on earth
    11·1 answer
  • Two coherent sources of radio waves, A and B, are 5.00 metersapart. Each source emits waves with wavelength 6.00 meters.Consider
    12·1 answer
  • Why do we need optics now a days?
    12·1 answer
  • Constants Canada geese migrate essentially along a north-south direction for well over a thousand kilometers in some cases, trav
    10·1 answer
  • It is late and Carlos is sliding down a rope from his third-floor window to meet his friend Juan. As he slides down the rope fas
    6·1 answer
  • A violin has a string of length
    10·2 answers
  • A penny is dropped from the 82nd Floor Observatory of the Empire State Building. The penny will fall for 8.1s before hitting the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!