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
AnnyKZ [126]
3 years ago
13

What potential difference is required across a 8Ω resistor to cause 2.0 A to flow through it?

Physics
1 answer:
dalvyx [7]3 years ago
7 0

Answer:

16 V

Explanation:

You might be interested in
IF YOUR GOOD AT SCIENCE THEN PLEASE ANSWER THIS ASAP I WILL MARK YOU THE BRAINLIEST
MakcuM [25]

Answer:

A: Copper is a good conductor

Explanation:

For an electrical current to flow through something, the main power source has to fight against the resistivity. Copper wire has a very low level of resistivity making it an excellent conductor. Basically, copper is super bendy and flexible, electricity.

Fun fact, sinc humans are also super bendy and essentially big sacs of all things wet and watery, we're considered to also be excellent conductors. We also have very intricate circuitry and a lot of natural electricity so basically, we were made for it, especially since the body already used little bits of electricity to function.

3 0
2 years ago
A water skier is pulled by a boat traveling with a constant velocity. Which one of the following statements is false concerning
ycow [4]

Answer:

C. There is a net horizontal force on the skier in the direction the ​boat’s velocity.

Explanation:

This is because, according to Newton's First law of motion, when an object which in this case is the skier tends to be in equilibrium because it travels at a constant velocity, there is no net acceleration of the skier, and this causes the net force on the skier to be equal to zero.

Therefore in this question, option C which states that "There is a net horizontal force on the skier in the direction the ​boat’s velocity" is a false statement.

6 0
3 years ago
What is the kinetic energy of a 1700 kg car traveling at a speed of 30 m/s (â65 mph)? does your answer to part b depend on the c
MArishka [77]
The kinetic energy of an object is given by
K= \frac{1}{2} mv^2
where m is the mass of the object and v its velocity.

For the car in the problem, m=1700 kg and v=30 m/s, so the kinetic energy of the car is
K= \frac{1}{2}mv^2= \frac{1}{2}(1700 kg)(30 m/s)^2=7.65\cdot 10^5 J

and as we can see, yes, the answer depends on the car's mass.
6 0
3 years ago
Local environmental change have no effect on the global climate true or false
Otrada [13]

Answer:

false

Explanation:

Even small environmental changes have large effects because small things become bigger

5 0
3 years ago
A spotlight on the ground shines on a wall 12 m away. If a man 2 m tall walks from the spotlight toward the building at a speed
mafiozo [28]

Answer:

0.6375 m/s

Explanation:

Let x be the distance of the man from the building

from the figure attached

initially the value of x=12

Given:

\frac{dx}{dt}=-1.7m/s

where the negative sign depicts that the distance of the man from the building is decreasing.

Now, Let The length of the shadow be = y

we have to calculate \frac{dy}{dt} when x=4

from the similar triangles

we have,

\frac{2}{12-x}=\frac{y}{12}    

or

y=\frac{24}{12-x}

Differentiating with respect to time 't' we get

\frac{dy}{dt}=-\frac{24}{12-x}^2\frac{-dx}{dt}

or

\frac{dy}{dt}=\frac{24}{12-x}^2\frac{dx}{dt}

Now for x = 4, and \frac{dx}{dt}=-1.7m/s  we have,

\frac{dy}{dt}=\frac{24}{12-4}^2\times (-1.7)

or

\frac{dy}{dt}=-0.6375m/s

<u>here, the negative sign depicts the decrease in length and in the question it is asked the decreasing rate  thus, the answer is </u><u>0.6375m/s</u>

4 0
3 years ago
Other questions:
  • A certain material has a high melting point and is malleable and shiny. It is most likely a _____.
    6·2 answers
  • You start driving north for 9 miles, turn right , and drive East for another 40 miles. At the end of driving, what is your staig
    6·1 answer
  • Which statement best describes an isolated system?
    5·2 answers
  • Water ia boled at 1 at pressure in a coffe aker equpped with an immension-type electric heating element. The coffee maker intial
    10·1 answer
  • Give one advantage and one disadvantage of physical models
    15·1 answer
  • Within visible light, violet has the lowest frequency. <br> a. True <br> b. False
    12·1 answer
  • A car accelerates from rest. It reaches a velocity of 25m/s in 10 seconds. What was the cars acceleration?
    7·1 answer
  • When two plates of the same density collide, what will most likely happen?
    7·1 answer
  • What current is required in the windings of a long solenoid that has 1580 turns uniformly distributed over a length of 0.44 m in
    14·1 answer
  • Rannan wants to perform a scientific experiment. he writes out a systematic process that involves him making observations and th
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!