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
Fantom [35]
3 years ago
11

If the current in a wire is 2.0 amperes and the potential difference across the wire is 10.0 volts, what is the resistance of th

e wire
Physics
2 answers:
avanturin [10]3 years ago
4 0

Answer:

v=IR

10÷2 =R

R=5 Ohm

.. .

Elden [556K]3 years ago
4 0

Answer:

5.0 ohms

Explanation:

I just took the test this is the right answer

You might be interested in
A 12.0-kg package in a mail-sorting room slides 2.00 m down a chute that is inclined at 53.0° below the horizontal. The coeffici
zvonat [6]

Answer

given,

mass of the package = 12 kg

slides down distance = 2 m

angle of inclination = 53.0°

coefficient of kinetic friction = 0.4

a) work done on the package by friction is

              W_f = -μk R d

                   = -μk (mg cos 53°)(2.0)

                   =-(0.4)(8.0 )(9.8)(cos 53°)(2.0)

                   = -37.75 J

b)

work done on the package by gravity is

             W_g = m (g sin 53°) d

                   = (8.0 )(9.8 )(sin 53°)(2.0 )

                   =125.23 J

c)

the work done on the package by the normal force is

             W_n = 0

d)

the net work done on the package is

           W = -37.75 + 125.23 + 0

           W = 87.84 J

7 0
3 years ago
A 1500-kg car accelerates from 0 to 25 m/s in 7.0 s. What is the average power delivered by the engine? (1 hp = 746 W) A) 50 hp
sergeinik [125]

Answer:

power, P = 90 hp

Explanation:

It is given that,

Mass of the car, m = 1500 kg

Initial velocity of car, u = 0

Final velocity of car, v = 25 m/s

Time taken, t = 7 s

We need to find the average power delivered by the engine. Work done divided by total time taken is called power delivered by the engine. It is given by :

P=\dfrac{W}{t}

According to work- energy theorem, the change in kinetic energy of the energy is equal to work done i.e.

W=\Delta E=\dfrac{1}{2}m(v^2-u^2)

P=\dfrac{\dfrac{1}{2}m(v^2-u^2)}{t}

P=\dfrac{\dfrac{1}{2}\times 1500\ kg\times (25\ m/s)^2}{7\ s}

P = 66964.28 watts

Since, 1 hp = 746 W

So, P = 89.76 hp

or

P = 90 hp

So, the average power delivered by the engine is 90 hp. Hence, the correct option is (E) " 90 hp".                                                                                                  

6 0
4 years ago
When Earth’s Northern Hemisphere is tilted toward the Sun during June, some would argue that the cause of our seasons is that th
Ludmilka [50]

Answer:

Distance of Earth from the Sun has nothing to do with the seasons only the tilt is responsible for the change in seasons.

Explanation:

The Earth's tilt does cause the seasons but the distance from the sun and has nothing to do with the change in seasons. In June, when the Northern Hemisphere is tilted in the direction of the Sun during the Northern Hemisphere summer the Earth is actually farthest from the Sun. In January, when the Southern Hemisphere is tilted in the direction of the Sun during the Northern Hemisphere winter the Earth is actually closest to the Sun. This is caused due to the elliptical orbit of the Earth. So, distance of Earth from the Sun has nothing to do with the seasons.

4 0
3 years ago
Plz plz help ...i really need steps for this answer
bija089 [108]

Answer:

3.9 seconds

Explanation:

Use constant acceleration equation:

y = y₀ + v₀ t + ½ at²

where y is the final position,

y₀ is the initial position,

v₀ is the initial velocity,

a is the acceleration,

and t is time.

Given:

y = 0 m

y₀ = 15 m

v₀ = 15 m/s

a = -9.8 m/s²

Substituting values:

0 = 15 + 15t + ½ (-9.8) t²

0 = 15 + 15t − 4.9t²

0 = 4.9t² − 15t − 15

Solve with quadratic formula:

t = [ -b ± √(b² − 4ac) ] / 2a

t = [ 15 ± √((-15)² − 4(4.9)(-15)) ] / 2(4.9)

t = [ 15 ± √(225 + 294) ] / 9.8

t = (15 ± √519) / 9.8

t = -0.79 or 3.9

It takes 3.9 seconds for the stone to reach the bottom of the well.

The negative answer is the time it takes the stone to travel from the bottom of the well up to the top of the well.

6 0
3 years ago
Read 2 more answers
How much force would it would be required to stop a 950kg car traveling at 30 M/S in 1.5 seconds
gavmur [86]

Answer:

28500

Explanation:

Force equation - F = m * a

F = 950 * 30

F = 28500

7 0
3 years ago
Other questions:
  • How does the law of inertia relate to passengers on a train that is slowing down suddenly.
    9·2 answers
  • Which of the following planets most likely has the coldest surface temperature?
    9·1 answer
  • Describe the method of calculation of area of rectangular body in short?​
    5·1 answer
  • Sea Food is a rich source of ______. *​
    9·2 answers
  • If the moon disappeared, the Earth's tides would a)not happen b)not be as large c)be much larger d)all be extreme just answer pl
    7·2 answers
  • If an object is rolling without slipping, how does its linear speed compare to its rotational speed? If an object is rolling wit
    5·1 answer
  • A ball is thrown directly downward with an initial speed of 7.65 m/s froma height of 29.0 m. After what time interval does it st
    12·1 answer
  • Calculate the maximum absolute uncertainty for R if:
    11·1 answer
  • Genes are located within a cell’s BLANK. Each gene controls the production of one or more specific BLANK. Changes in the structu
    12·1 answer
  • A 500kg car is driven forward with a thrust force of 1500N. Air resistance and friction acts against the motion of the car with
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!