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
Gelneren [198K]
2 years ago
11

A lamp draws a current of 20 A when it is connected to a 100 V source? What is the resistance of the lamp?

Physics
1 answer:
S_A_V [24]2 years ago
7 0

Explanation:

R = V / I = 100V / 20A = 5 ohms.

You might be interested in
A 4.00 kg block is pushed along the ceiling with a constant applied force of 85.0 N that acts at an angle of 55.0 degrees with t
steposvetlana [31]

Answer:

0.35

Explanation:

According to Newton's second law;

\sum Fx = ma

Fm - Ff =ma

Fm is the moving force = Wsin theta

Fm = 4(9.8)sin55

Fm = 32.1N

Ff is the frictional force = nmgcos theta

Ff = n(4)(9.8)cos55

Ff = 22.48n

Acceleration a = 6.0m/s²

Substitute the given values into the formula and get the coefficient of friction

32.11-23.48n = 4(6)

32.11-24= 23.48n

8.11 = 23.48

n = 8.11/23.48

n = 0.35

Hence the coefficient of friction is 0.35

6 0
2 years ago
How does the earth orbit the sun?
scoray [572]

Answer:

The Sun's gravity pulls on the planets, just as Earth's gravity pulls down anything that is not held up by some other force and keeps you and me on the ground.

Explanation:

Hope that helps

6 0
3 years ago
Giving a test to a group of students, the grades and gender are summarized belowGrades vs. Gender ABCMale10316Female465If one st
strojnjashka [21]

Answer:

20.45%

Explanation:

The probability that the student got a B is

\frac{total\#of\text{ students that got B}}{\text{total students }}\times100\%

Now, how many students are there in total?

The answer is

10+3+16+4+6+5=44\; \text{students}

How many students got a B?

The answer is

3+6=9\; \text{students}

therefore, the probability that the student has got a B is

\frac{9\text{ students }}{44\text{ students }}\times100\%=20.45\%

Hence, the probability that a student has got a B is 20.45%

5 0
1 year ago
______ studies the blood types and immune factors as a means of identification of the source of the blood.
emmainna [20.7K]
Pretry aute its 2. Serologist
3 0
3 years ago
Mike stands on a scale in an elevator. If the elevator is accelerating upwards with 4.9 m/s2, the scale reading is ____ times Mi
Bas_tet [7]

Answer:

F - M a      force exerted by scales on student

M a = M (9.8 + 4.9) m/s^2      upwards chosen as positive

a = 1.5 g        net acceleration of student  due to force of scales

W =M g       weight of student   (actual weight)

Wapp = M 1.5 * g      apparent weight (on scales) of student

7 0
2 years ago
Other questions:
  • How is the control group and experimental group different
    8·1 answer
  • How does a wildfire impact a population of oak trees?
    10·2 answers
  • At one instant of time, a car and a truck are traveling side by side in adjacent lanes of a highway. The car has a greater veloc
    7·1 answer
  • You are a member of a citizen's committee investigating safety in the high school sports program. You are interested in knee dam
    6·1 answer
  • A body with an initial velocity of 10m/s has an acceleration of 8m/s^2. Determine graphically the velocity after 5 seconds, &amp
    9·1 answer
  • A horse runs 350 meters in 23 seconds. What was the average speed of the horse? Round your answer to a tenth ​
    5·1 answer
  • Calculate the potential energy stored in an object of mass 50 kg at a height of 20 m from the ground.
    10·2 answers
  • Help please
    15·1 answer
  • How does inertia explain why it is difficult to stop a moving<br> skateboard?
    10·1 answer
  • A thermal reservoir can be characterized as a thermal body that is large enough that when energy is dumped into it or taken out
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!