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
TEA [102]
4 years ago
14

A __________ is a device designed to open and close a circuit by non-automatic means and to open the circuit automatically on a

predetermined overcurrent without damage to itself when properly applied within its rating.
Physics
1 answer:
strojnjashka [21]4 years ago
6 0

Answer:

Circuit breaker

Explanation:

Circuit breaker is the devise designed to protect the circuit from over current by opening the circuit automatically. Breaker can also be off manually by toggle switch. Earlier fuses were used but circuit breakers have replaced them. Fuse and circuit breakers operates differently. in case of overloading fuses blown off and opens the circuit while circuit breaker opens the circuit automatically without being blown off.

You might be interested in
Which of the following devices could be used to create a position--time graph for an object? 
pickupchik [31]
D none of the above

all of them is related to energy and motion , not to positioning.
6 0
4 years ago
What medical technique uses sound wave pulses and their reflections to map structures and organs inside the body?
garri49 [273]

The correct answer is “C” ultrasound. Hope this helps!

7 0
4 years ago
Read 2 more answers
Given that o.2i+bj+o.4k is a unit vector,what is the value of b?
pishuonlain [190]

Answer:

b = 0.89

Explanation:

The given vector is, A=0.2i+bj+0.4k

A is a unit vector

We need to find the value of b.

For a unit vector, |A| = 1

So,

0.2^2+b^2+0.4^2=1\\\\0.04+b^2+0.16=1\\\\0.2+b^2=1\\\\b^2=1-0.2\\\\b=0.89

So, th value of b is 0.89.

6 0
3 years ago
A bicycle tire is spinning counterclockwise at 2.70 rad/s. During a time period At 1.90 s, the tire is stopped and spun in the o
Naddik [55]

Answer:

a) -5.40 rad/s

b) -2.842 rad/s²

Explanation:

The direction is important in dealing with such questions. Clockwise is considered negative and counterclockwise is considered positive

a) Δω = final angular velocity - initial angular velocity

          = -2.70 rad/s - 2.70 rad/s

          = -5.40 rad/s

b) ∝ = Δω/Δt = (-5.40 rad/s)/1.90s = -2.842 rad/s²

7 0
4 years ago
Here is a graph of speed vs time. If the object is moving to the east, which BEST describes the speed and velocity of the graph?
san4es73 [151]

Answer: A JUST DID IT ON USA TESTPREP

Explanation:

5 0
3 years ago
Other questions:
  • I s w a t e r w e t ?
    8·1 answer
  • If the space station is 190 m in diameter, what angular velocity would produce an "artificial gravity" of 9.80 m/s2 at the rim?
    15·1 answer
  • If an object starts at rest and moves 60 meters north along a straight line for 2 seconds, what is its average velocity?
    6·1 answer
  • If a kestrel eats a mouse that eats grass the kestrel is a
    11·2 answers
  • Which topic are you most likely to find in a physics textbook?
    9·2 answers
  • If the pig can move the car 30 meters in 10 seconds then what is the speed for the car
    9·2 answers
  • 40 POINTS!! please answer the question completely and with full sentences
    5·2 answers
  • What does gravity, electricity, and magnesium have in common?
    7·1 answer
  • A barber Wants to set up a salon in a measuring Length of 3m by 3m. He has a simple Woden Chair, 3 large mirror and one bulb. a)
    14·1 answer
  • A block of aluminum has a volume of 15.0 ml and a mass of 50.5 g. the density is ___________. group of answer choices
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!