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
katrin [286]
3 years ago
14

2. If the efficiency of a device is 64 %, what is the amount of Energy lost/ wasted by this device?

Physics
1 answer:
Inessa05 [86]3 years ago
3 0
It would be 78 becuase the 2 percent of 64 is many of energy lost
You might be interested in
A clam dropped by a seagull takes 3.0 seconds to hit the ground. What is the seagull's approximate height above the ground at th
ankoles [38]
<h2>The seagull's approximate height above the ground at the time the clam was dropped is 4 m</h2>

Explanation:

We have equation of motion s = ut + 0.5 at²

        Initial velocity, u = 0 m/s

        Acceleration, a = 9.81 m/s²  

        Time, t = 3 s      

     Substituting

                      s = ut + 0.5 at²

                      s = 0 x 3 + 0.5 x 9.81 x 3²

                      s = 44.145 m

The seagull's approximate height above the ground at the time the clam was dropped is 4 m

4 0
4 years ago
3. Magnitude of a physical quantity is the number of times a standard quantity is present in it.
Nady [450]
The number of times a standard quantity is present in the given physical quantity is called magnitude of a physical quantity
4 0
3 years ago
A car moves at 45 kilometers per hour.
AnnyKZ [126]

Answer:

4

Explanation:

7 0
3 years ago
Read 2 more answers
A. What evidence have you discovered to explain how
svp [43]

Answer:

Well if it gets warmer the ice will weaken and if it gets hot enough will melt. Of course if the weather gets colder the ice will thicken.

Explanation:

3 0
3 years ago
Read 2 more answers
Four point charges are placed at the corners of a square. Each charge has the identical value +Q. The length of the diagonal of
kvv77 [185]

Answer:V_{net}=4\frac{kQ}{a}    

Explanation:

Given

charge on each Particle is Q

Length of diagonal of the square is 2a

therefore distance between center and each charge is \frac{2a}{2}=a

Electric Potential of charged Particle is given by

For First Charge

V_1=\frac{kQ}{a}

V_2=\frac{kQ}{a}

V_3=\frac{kQ}{a}

V_4=\frac{kQ}{a}

total Electric Potential At center is given by

V_{net}=V_1+V_2+V_3+V_4

V_{net}=4\times \frac{kQ}{a}

V_{net}=4\frac{kQ}{a}            

7 0
3 years ago
Other questions:
  • 10. A worker uses a pulley system to raise a 24.0 kg carton 16.5 m. A force of 129 N is exerted and the rope is pulled 33.0 m. a
    8·1 answer
  • By using_______you can determine your exact position and altitude on earth?
    7·1 answer
  • The slope of a linear velocity-time graph tells us the _____ of the object.
    7·1 answer
  • Alex is standing still and throws a football with a speed of 10 m/s to his friend, who is also standing still. The two friends a
    12·2 answers
  • Please help me this is important!
    7·1 answer
  • For the first challenge, Lex demands that Superman use the weight of a small stone to lift a boulder. Understanding the principl
    13·1 answer
  • A block slides forward 4.73 m while being pulled back by a 39.7 N force at 142° from the direction of motion. How much work does
    13·1 answer
  • What is the difference between solar minimum and solar maximum
    6·1 answer
  • I cant solve this problem, and our teacher said that this would be in the test we'll have tomorrow, can someone help me?
    14·1 answer
  • I'LL MARK U BRAINLIST!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!