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Annette [7]
3 years ago
14

PLEASE HELP ME IF YOU KNOW STUFF ABOUT ENERGY TYSM

Physics
2 answers:
muminat3 years ago
7 0
Answer:
1. Kinetic
2. Joules
3. Temperature

Explanation: I think this is right.
Tomtit [17]3 years ago
5 0

Answer:

  1. Kinetic Energy
  2. Potential energy
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PLEASE HELP ME
sashaice [31]

Given that,

Electrical energy of the motor = 2280 J

Kinetic energy = 1606 J

Wasted energy in thermal and sound energy = 550 J

To find,

The efficiency of the motor in percent.

Solution,

Efficiency is defined as the ratio of useful output energy to the total energy.

Total energy = 2280 J

Useful energy = 1606 J

\eta=\dfrac{1606}{2280}\times 100\\\\=70.43\%

So, the efficiency of the motor is 70.43%.

5 0
3 years ago
PLEASEEEEE HELPPPPPP MEEEEEE I WILL MARK AS BRAINLIST PLEASEEEE
nydimaria [60]
<span>An organism that is being harmed by the parasite is a _________? 
</span><span>
Answer- It is called a host

Hope this helps! :D</span>
3 0
3 years ago
Drivers a and b travel west from boston. driver a leaves three hours earlier traveling at a constant speed of 68mph. driver b fo
Elza [17]

We can answer this using one of the equations of linear motion:

v = d / t

where:

v = velocity

d = distance

t = time

<span>In the problem, we are asked to find for the time in which Driver B will catch up to Driver A. Therefore,  find the time when dA = dB. Rearranging the equation and equation dA and dB will result in:</span>

<span>vA * tA = vB * tB  ---> 1</span>

It was given that:

vA = 68 mph

tA = tB + 3 (since person A was travelling 3 hours earlier)

vB = 85 mph

tB = unknown

Substituting into equation 1:

68 * (tB + 3) = 85 * tB

68 tB + 204 = 85 tB

tB = 12 hrs

Therefore driver B would catch up to driver A after 12 hrs.

 

 

<span> </span>

5 0
3 years ago
Một sóng cơ học có tần số 50hz lan truyền dọc theo một sợi dây rất dài biết rằng sau 5 giây sóng truyền được 1 đoạn 25m dọc theo
Oliga [24]

Answer:

10 cm

Explanation:

Được

Tần số = 50 hertz

Khoảng cách đã đi = 25 m

Thời gian đi quãng đường 25 m = 5 giây

Tốc độ của sóng = 25/5 = 5 mét trên giây

Như chúng ta biết

Bước sóng = Vận tốc / tần số

Bước sóng = 5 mét trên giây / 50 trên giây

Bước sóng = 0,1 m = 10 cm

3 0
3 years ago
At a weightlifting competition two competitors list of the same way to the same height the second competitor accomplished to liv
UNO [17]
One more what ? I’m confused ?
4 0
3 years ago
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