Answer:
Specific heat
Explanation:
The specific heat is the amount of heat, that is energy in transfer to or from a thermodynamic system, required to raise the temperature of 1 g of substance by one degree Celsius or one Kelvin, since one degree on the Celsius scale is equal to one Kelvin.
Answer:
Explanation:
Given that,
Gas central heating was used for 5days
At a rate of 102kWh of energy
Then, 1 kWh = 7p
So,
The total time is 5days
t = 5days
1 day = 24hours
Then, t = 5days = 5 × 24 = 120hours
Given 102kWh, then, they consumers 102 kW in one hour, then, for the 120hours,
The total energy used is 102 × 24
Then, total energy = 2448 kWh
So, 1 kWh = 7p,
Then, 2448 kWh = 7 × 2448
2448 kWh = 17,136 p.
So, the cost of the using central heat is 17,136 p
b. Refraction
Explanation:
Fish in the aquarium are looking much bigger than they are due to refraction.
Refraction causes the path of light to bend and the velocity and wavelength attenuated.
This phenomenon occurs when light travels between two materials of different densities.
- Air has a refractive index of 1
- Water has a refractive index of 1.33
- When light form water comes to air, the their angle changes.
- This causes the magnification of the fish.
Learn more:
Refraction brainly.com/question/12370040
#learnwithBrainly
Venus moves faster than earth because it move with a higher speed as compared to earth.
<h3>Is Venus move faster than earth?</h3>
Venus move with the speed of 35.02 km/s while on the other hand, the earth moves with the speed of 29.78 km/s. So due to more speed of Venus, the Venus completes its revolution earlier than earth.
So we can conclude that Venus moves faster than earth because it move with a higher speed as compared to earth.
Learn more about Venus here: brainly.com/question/2323914
#SPJ1
