Number of turns in the primary Np = 600
Number of turns in the secondary Ns = 300
Output voltage Es = 320 volts
Input voltage Ep = ?
Assuming the transformer to be ideal,
Np/Ns = Ep/Es
Ep/Es = 600/300 = 2
<span>Ep = 320*2 = 640 volts </span>
Answer:
The problem with her grandfather's eye can be long sightedness and short sightedness
Explanation:
Given that,
Mona's grandfather had been complaining of poor vision for many days.
We know that,
Refractive eye surgery is small surgery.
We need to find the problem with her grandfather's eye
Using given data,
Mona's grandfather had been complaining of poor vision for many days.
So, the doctor did refractive eye surgery of her grandfather's eye.
Due to this surgery, Mona's grandfather can see things clearly.
Refractive eye surgery is a method for correcting vision.
This surgery used for better vision.
This surgery is possible for long sightedness and short sightedness.
Hence, The problem with her grandfather's eye can be long sightedness and short sightedness
Answer:
Q =843780 J
Explanation:
Given that,
The specific heat of a certain type of cooking oil is, 
Mass of the oil, m = 2.87 kg = 2870 g
Initial temperature, 
Final temperature, 
To find,
Heat energy needed to raise the temperature.
Solution,
The heat energy needed to raise the temperature in terms of specific heat is given by :
So, the heat energy needed to raise the temperature is 843780 J.
Answer:
47391.8 J
Explanation:
Q = m c Δt
For melting, Δt = (962-22)°C
Heat required to attain melting point = 145 x 10 ⁻³ x 236 x 940 =
= 32166.8 J
Heat required to melt at melting point = m L , L is latent heat of fusion.
= 145 x 10⁻³ x 105 x 10³ = 15225 J
Total energy required = 47391.8 J
Answer:
Physical fitness can be defined as the “ability to carry out daily tasks with vigor and alertness, without undue fatigue, and with ample energy to enjoy leisure-time pursuits and to meet unforeseen emergencies” (Park 1989).
Explanation:
