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
Lelu [443]
3 years ago
10

If the current in this circuit is 3 A, what must be the value of R3?It's 5 Ω

Physics
2 answers:
Svetllana [295]3 years ago
5 0

Explanation :

It is given that,

In the given figure all the three resistors are in series.

Current flowing in the circuit, I=3\ A

Voltage, V=30\ V

We know that in series circuit the current flowing in all resistors is same.

Using Ohm's law, we get:

V=IR

30\ V=3\ A(2\ \Omega+3\ \Omega+R_3)

R_3=5\ \Omega

Hence, this is the required solution.    

topjm [15]3 years ago
3 0

Answer:

5

Explanation:

You might be interested in
If two proton approach each other with speed of 400m\s and 450m\s respectively what is the total momentum of the two particle sy
lilavasa [31]

Answer: 83.65\times 10^{-27}\ kg.m/s

Explanation:

Given

The velocities of the protons are 400 m/s and 450 m/s

Mass of the Proton is m=1.673\times 10^{-27}\ kg

Since they travel in the opposite direction, therefore, their momentum cancels out each other.

Momentum is the product of mass and velocity

\therefore m(450-400)\\\Rightarrow 1.673\times 10^{-27}\times 50\\\Rightarrow 83.65\times 10^{-27}\ kg.m/s

The direction of momentum is in the direction of proton having 450 m/s velocity.

7 0
2 years ago
Seyed made a chart to compare Einstein's and Newton's ideas about time and space.
TEA [102]

Answer:

space is three dimensional

5 0
3 years ago
Read 2 more answers
A billiard ball moving at 5 m/s strikes a stationary ball of the same mass. After the collision, the original ball moves at a ve
SIZIF [17.4K]

90 degrees - 30 = 60 degrees

Velocity = (5m/s - 4.35m/s x cos(30)) / cos(60)

Velocity = 2.47 m/s

The answer is D) 2.47 m/s at 61.9 degrees

8 0
3 years ago
An object,moving with a constant velocity,travels 274 m in 23 s.What is its velocity?
Fudgin [204]

Answer:

<h2>11.91 m/s</h2>

Explanation:

The velocity of an object can be found by using the formula

v =  \frac{d}{t}  \\

d is the distance

t is the time taken

From the question we have

v =  \frac{274}{23}  \\  = 11.91304...

We have the final answer as

<h3>11.91 m/s</h3>

Hope this helps you

7 0
3 years ago
HW 5.2.A 5.00-kg chunk of ice is sliding at 12.0 m/s on the floor of an ice-covered valley whenit collides with and sticks to an
Allisa [31]

The concept used to solve this problem is the conservation of momentum and the conservation of energy.

For conservation of the moment we have the definition:

m_1v_1 = (m_1+m_2)v_f

Where,

m = Mass

v_1 = Initial velocity for object 1

v_f = Final velocity

Replacing the values we have to,

m_1v_1 = (m_1+m_2)v_f

5*12=(5+5)v_f

v_f = 6m/s

By conservation of energy we know that the potential energy is equal to the kinetic energy then

mgh = \frac{1}{2} m(v_f^2-v_i^2)

gh = \frac{1}{2} v_f^2

h = \frac{1}{2} g*v_f^2

h = \frac{1}{2} (9.8)(6)^2

h = 1.837m

Therefore after the collision the height when the combined chinks will go is 1.837m

3 0
3 years ago
Other questions:
  • If a 15g irregular shaped object is submerged in a graduated cylinder of water, the level rises from 10 ml to 25 ml, what is the
    7·1 answer
  • A steel pot has a bottom with a cross sectional area of .1m2 and has a thickness of 1cm. The pot is filled with boiling water an
    7·1 answer
  • A whistling sound that is audible when a hearing aid is held in the hand with the power on and the volume high indicates that th
    13·1 answer
  • A star is twice as massive as the sun. How will it's lifespan compare???
    13·2 answers
  • A clay ball with a mass of 0.48kg has an initial speed of 4.08m/s it strikes a 3.04kg clay ball at rest and the two balls stick
    9·1 answer
  • On a nice winter day at the South Pole, the temperature rises to −54°F. What is the approximate temperature in degrees Celsius?
    13·2 answers
  • hi everyone im learning about zodiac signs can u plz share urs and somethings u like to for ex im an aquarius and i sing and lik
    5·2 answers
  • The Mars Curiosity rover was required to land on the surface of Mars with a velocity of 1 m/s. Given the mass of the landing veh
    12·1 answer
  • Body composition refers to:
    15·1 answer
  • What mechanism of energy is transferred by mass motion of fluid from one region of space to another?​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!