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
aniked [119]
3 years ago
5

The unit used to measure electric current is the ampere (A). Now, assume that the current delivered at a wall socket reaches the

value 3.8 A ten times in a time interval of 0.17 s. What is the period T with which the current at the wall socket changes?
Physics
1 answer:
pav-90 [236]3 years ago
8 0

Answer:

T = 0.017s

Explanation:

period is the time it takes a particle to make one oscillation

An electric current is periodic in nature

The current reaches 3.8A  ten times.  

So there must have been 10 cycles (10 periods) in 0.17s.   let 'T'  be the period:

T=\frac{t}{n}

t is the total time interval

n is the number of oscillations

T=\frac{0.17}{10}

10T = 0.17

T = 0.17/10 = 0.017s

You might be interested in
Explain why a battery causes charge to flow spontaneously when the battery is inserted in a circuit
deff fn [24]
Batteries supply electrons to the circuit by releasing negatively charged atoms or ions. These ions are produced by the batteries through a chemical reaction that spontaneously occurs within the battery. So the negative end of the battery pushes the ions towards the positive end of the circuit with the help of the voltage. This is why eventually, batteries "run out" when the electrode is used up and the chemical reaction can no longer continue.
3 0
3 years ago
A rock at rest falls off a tall cliff and hits the valley below after 3.5s. What is the rocks velocity as it hits the ground
pogonyaev
T = 3.5 secs

Velocity (v) = g * t = 10 m/s^2 * 3.5 sec = 35 m/s
7 0
3 years ago
Read 2 more answers
HELP WILL MEDAL!!!! HELP
steposvetlana [31]
Here try this. The pic is the answer

8 0
3 years ago
When an oxygen atom forms an ion, it gains two electrons. What is the electrical charge of the oxygen ion?
Mashutka [201]
-2. This is because it is gaining electrons. Electrons are negative. Therefore it is a negative charge.
6 0
3 years ago
A small, closed chamber of gas is heated. When the gas in the chamber expands,it does 5 J of work on a piston. The gas has an in
Anestetic [448]

Given:

Work done, W = 5 J

Initial energy = 8J

Final energy = 30J

Let's determine if the work done have a positive or nrgative value.

Appy the equation for the first lae of thermodynamics:

\Delta U=Q-W

Where:

U is the change in internal energy

Q is the added heat

W is the work done

To find the work done here, we have:

Rewrite the formula for W

W=Q-\Delta U

Where:

ΔU = 30J - 8J = 22J

Q = 5J

Thus, we have:

\begin{gathered} W=5J-22J \\  \\ W=-17J \end{gathered}

Therefore, the work done here is -17J.

This means the work done in this scenario has a negative value.

ANSWER:

The work done in this scenario has a negative value

3 0
1 year ago
Other questions:
  • When writing a lab report where do your data tables belong?
    15·2 answers
  • Two large, flat, horizontally oriented plates are parallel to each other, a distance d apart. Half way between the two plates th
    11·1 answer
  • Help me slove this problem 115 divided by 2
    14·2 answers
  • A piston has an area of 4 m2 and needs 20 N of force to push it down. What is the pressure?P=F/A *
    9·1 answer
  • A bicyclist accelerates from a stop to a speed of 12m/s in 3 seconds.what is her acceleration
    5·1 answer
  • A solution of ph 12 ( 3 )
    9·1 answer
  • A monkey pushes a rock horizontally on a frictionless table with a net force of 10 N for 2.0 m. How much kinetic energy does the
    7·1 answer
  • Determine the kinetic energy of a 2000 kg roller coaster car that is moving at the speed of 10 ms
    14·1 answer
  • Un coche de unos 500 kg viaja a 90 km/h. Percibe un obstáculo y debe frenar a tope. Por las marcas del suelo se sabe que el espa
    5·1 answer
  • Write the following as powers of ten with one figure before the decimal point:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!