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
Colt1911 [192]
3 years ago
12

Com que rapidez estará sendo feito trabalho elétrico num resistor de 10 ohms, percorrido por uma corrente elétrica de 5 A? Qual

a energia gasta no mesmo em 2 horas?
Physics
1 answer:
34kurt3 years ago
7 0

Poder = (resistencia) x (corrente)²

Poder = (10 ohms) x (5 A)²

<em>Poder = 250 watts </em>(250 Joule por segundo)

2 horas = 7,200 segundos

Energia = (250 joule/seg) x (7,200 seg)

<em>Energia = 1,800,000 Joules</em>

You might be interested in
Indicate whether a change in the value of each of the following determinants of demand leads to a movement along the demand curv
Inessa05 [86]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
Change in market price is m<span>ovement along the demand curve. </span>

4 0
3 years ago
The sport with the fastest moving ball is jai alai, where measured speeds can be 286 km/h. If a professional jai alai player fac
cricket20 [7]

Answer:

d= 794.4 cmExplanation:

Given that

Speed ,V= 286 km/h

=286\times \dfrac{1000}{3600}\ m/s

V=79.44 m/s

Given that time ,t= 100 ms

t= 0.1 s

We know that ( if acceleration is zero)

Distance = Speed x time

d= V t

Now by putting the values in the above equation

d = 79.44 x 0.1 m

d= 7.944 m

We know that 1 m = 100 cm

d= 794.4 cm

5 0
3 years ago
A car is traveling at 21m/s. It accelerates at 1.4m/s2 for 11s. How fast is the car moving after the acceleration?
nata0808 [166]

Answer:

v=u+at

v=21+1.4(11)

v=21+15.4

v=36.4

3 0
3 years ago
10. As a spaceship is moving toward Earth, an Earthling measures its length to be 325 m, while the captain on board radios that
Oliga [24]

Answer:

Explanation:

10. As a spaceship is moving toward Earth, an Earthling measures its length to be 325 m, while the captain on board radios that her spaceship's length is 1150 m. (c = 3.00 × 108 m/s) (a) How fast is the rocket moving relative to Earth? (b) What is the TOTAL energy of a 75.0-kg crewman as measured by (i) the captain in the rocket and (ii) the Earthling?

3 0
2 years ago
find the velocity of the object for all relevent times find the position of the object for all relevent times a softball is popp
KATRIN_1 [288]

Answer:

whats the formula

Explanation:

4 0
2 years ago
Other questions:
  • A uniform brick of length 21 m is placed over
    13·1 answer
  • Compare the benefits of wildfires to grasslands, northern forests, and deciduous forests.
    7·2 answers
  • The radius of a sphere is increasing at a rate of 9 cm/ sec. Find the radius of the sphere when the volume and the radius of the
    11·1 answer
  • How is acceleration related to the force with mass is constant according to newtons second law of motion motion
    10·1 answer
  • NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A 60-kg pilot flies
    11·1 answer
  • Which of the following best represents a decomposition reaction?
    8·1 answer
  • Based on their colors, which of the following stars is hottest? Which is coolest? Archenar (blue), Betelgeuse (red), Capella (ye
    12·2 answers
  • Two cars collide inelastically and stick together after the collision. Before the collision, the magnitudes of their momenta are
    11·1 answer
  • Multiply.<br> (2x + 4)(x - 4)
    6·1 answer
  • a standby generator is connected to 1540 w lamps and a musicians 600w amplifying system how much energy is used if the generator
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!