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
Leno4ka [110]
2 years ago
7

If one 9V battery is used in a circuit with a total resistance of 39Ω, what is the current in the circuit?

Physics
1 answer:
Ket [755]2 years ago
6 0

Answer:

Using V= IR

I= 0.2307 Ampere

You might be interested in
How are mountain ecosystems different from other ecosystems?
Andreyy89

Answer:

They host three or more distinct ecosystems at different elevations.

Explanation:

I checked it, and its right.

3 0
2 years ago
How does unequal solar heating lead to the Gulf Stream?
adoni [48]
Http://earthguide.ucsd.edu/virtualmuseum/virtualmuseum/OriginofGulfStream.shtml this website might help u find ur answer
8 0
2 years ago
Carlos wanted to know how positive and
Iteru [2.4K]

Answer:

it Give only one of them a positive or negative charge

5 0
2 years ago
Read 2 more answers
A car is running at the speed of 45km/hr see a child 25 meter ahead and suddenly apllies a brakes. If the retradation of the car
kenny6666 [7]

Answer:

The car stops in 7.78s and does not spare the child.

Explanation:

In order to know if the car stops before the distance to the child, you take into account the following equation:

x=x_o+v_ot-\frac{1}{2}at^2        (1)

vo: initial speed of the car = 45km/h

a: deceleration of the car = 2 m/s^2

t: time

xo: initial distance to the child = 25m

x: final distance to the child = 0m

It is necessary that the solution of the equation (1) for time t are real.

You first convert the initial speed to m/s, then replace the values of the parameters and solve the quadratic polynomial for t:

45\frac{km}{h}*\frac{1h}{3600s}*\frac{1000m}{1km}=12.5\frac{m}{s}

0=25+12.5t-2t^2\\\\2t^2-12.5t-25=0\\\\t_{1,2}=\frac{-(-12.5)\pm \sqrt{(-12.5)^2-4(2)(-25)}}{2(2)}\\\\t_{1,2}=\frac{12.25\pm 18.87}{4}\\\\t_1=7.78s\\\\t_2=-1.65s

You take the first value t1 because it has physical meaning.

The solution for t is real, then, the car stops in 7.78s and does not spare the child.

4 0
3 years ago
The amount of kinetic energy an object has depends on its.
dalvyx [7]
<span>The amount of kinetic energy an object has
depends on its mass and speed.</span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • A 2.03 cm high insect is 1.39 m from a 131 mm focal-length lens. Where is the image? How high is it?
    8·1 answer
  • What conditions must be met if a man-made satellite is to attain a circular orbit around the earth?(choose as many as apply)
    15·1 answer
  • He goes 12km north 6km east 12km south 3km west what is the distance and displacement
    9·1 answer
  • Need help with 6 , 7 , and 8.
    10·1 answer
  • What is the equivalent resistance in this circuit?<br>What is the current in this circuit?
    10·2 answers
  • Two small metallic spheres with equal mass are suspended as pendulums by strings of length L. The sphereshave the same electric
    8·1 answer
  • Does everything in a black hole contain a singularity?
    12·2 answers
  • The distibution on the condutor​
    11·1 answer
  • A soccer ball is kicked from the top of one building with a height of H1 = 30.2 m to another building with a height of H2 = 12.0
    13·1 answer
  • A car is being driven at a rate of 60 ft/sec when the brakes are applied. The car decelerates at a constant rate of 19
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!