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
Mekhanik [1.2K]
3 years ago
14

If a battery-operated car has a resistance of 3 Ohms and the current moving through it is 2 amps, what is the voltage of the bat

tery?
A) 6V
B) 1.5 V
C) 1 V
D) 0.67 V
Physics
2 answers:
aivan3 [116]3 years ago
6 0

Answer:

A) 6V

Explanation:

To solve this problem we need to use ohm's law

We have the resistance

Resistance=R=3ohms

and the current:

Current=I=2A

To find the voltage we use the following formula from ohm's law:

Voltage=(Current)(Resistance)

so

V=I*R

substituting the known values:

V=(2A)(3ohms)=6volts

the voltage of the battery is 6V which is option A.

Leno4ka [110]3 years ago
5 0

Answer:

For me I think it is A

Explanation:

You might be interested in
How does it do? this photo ​
vova2212 [387]

Answer: Its A because i had the same question and it was a

5 0
3 years ago
Read 2 more answers
ΑΣ Sign A. keeping everything grounded on Earth. C. planes not being able to fly into space. B. making tall skyscrapers safe, D.
stepladder [879]

Answer:

i think that it is c because it not only tells us about what the moon does to the earth it also tells us what the earth does to the moon.

Explanation:

3 0
2 years ago
Read 2 more answers
Suppose I have a vector that is 7 units long and that makes an angle of +30 degrees from the positive x-axis. I want to add to t
Vinil7 [7]

Answer:

sum of these two vectors is 6.06i+3.5j-3.5i+6.06j = 2.56i+9.56j

Explanation:

We have given first vector which has length of 7 units and makes an angle of 30° with positive x-axis

So x component of the vector =7cos30^{\circ}=7\times 0.866=6.06

y component of the vector =7sin30^{\circ}=7\times 0.5=3.5

So vector will be 6.06i+3.5j

Now other vector of length of 7 units and makes an angle of 120° with positive x-axis

So x component of vector  =7cos120^{\circ}=7\times -0.5=-3.5i

y component of the vector =7sin120^{\circ}=7\times 0.866=6.06j

Now sum of these two vectors is 6.06i+3.5j-3.5i+6.06j = 2.56i+9.56j

5 0
3 years ago
A 50.-kilogram rock rolls off the edge of a cliff. if it is traveling at a speed of 24.2 m/s when it hits the ground, what is th
ElenaW [278]

The correct answer to the question is : 29.88 m.

EXPLANATION :

As per the question, the mass of the rock m = 50 Kg.

The rock is rolling off the edges of the cliff.

The final velocity of the rock when it hits the ground v = 24 .2 m/s.

Let the height of the cliff is h.

The potential energy gained by the rock at the top of the cliff = mgh.

Here, g is known as acceleration due to gravity, and g = 9.8\ m/s^2

When the rock rolls off the edge of the cliff, the potential energy is converted into kinetic energy.

When the rock hits the ground, whole of its potential energy is converted into its kinetic energy.

The kinetic energy of the rock when it touches the ground is given as -

                Kinetic energy K.E = \frac{1}{2}mv^2.

From above we know that -

   Kinetic energy at the bottom of the cliff = potential energy at a height h

                 \frac{1}{2}mv^2=\ mgh

                ⇒ v^2=\ 2gh

                ⇒ h=\ \frac{v^2}{2g}

                ⇒ h=\ \frac{(24.2)^2}{2\times 9.8}

                ⇒ h=\ 29.88\ m

Hence, the height of the cliff is 29.88 m

             


5 0
3 years ago
A shopper pushes a 5.32 kg grocery cart with a 12.7 N force directed at -28.7° below horizontal. A friction force of 8.33 N push
atroni [7]

Answer:

0.8214 m/s^2

Explanation:

Fnet= Fpushed - Ffriction

Fpushed = 12.7N      Ffriction = 8.33N

Fnet = 12.7N - 8.33N = 4.37N

Fnet= mass(acceleration)

Fnet = 4.37N    mass = 5.32 kg

4.37N = 5.32 kg(acceleration)

acceleration= 0.8214 m/s^2

3 0
3 years ago
Other questions:
  • Permeability is the condition of being capable of having materials flow into and out of a membrane. The permeability of a cell m
    6·2 answers
  • Which statement best describes resistance? Resistance is
    7·2 answers
  • A wire is stretched between two posts. Another wire is stretched between two posts that are four times as far apart. The tension
    9·1 answer
  • A diamond is cut such that the angle between its top surface and its bottom surface is α. For α=45∘, find the largest possible v
    14·1 answer
  • Alkaline batteries have the advantage of putting out constant voltage until very nearly the end of their life. How long will an
    8·1 answer
  • What is the impulse of a 3 kg object that starts from rest and moves to 20 m/s?
    11·1 answer
  • Explain the difference between mass and weight for objects on earth and on the moon
    7·2 answers
  • What is the difference between sounds that have the same pitch and loudness?
    7·2 answers
  • PLEASE HELP ILL MARK BRAINLIEST
    12·1 answer
  • HOW DO U FEEL WHEN U PLAY OR WATCH BADMINTON?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!