Answer:
1) as far as I remember
Let's take 20 as vf (final velocity) and 11 as (initial velocity) and 4 as time
So we would use this formula a=vf-vi/t
So 20-11/4
Asnwer 2.25
Answer:
527 ° C
Explanation:
For black body radiation, the power emitted per unit area is directly proportional to the absolute temperature raised to the fourth power:
j = k T⁴
First, convert 127° C to Kelvins:
127° C + 273.15 = 400.15 K
Now find the constant of variation:
2×10⁵ = k (400.15)⁴
k = 7.80×10⁻⁶
Finally, solve for the temperature at the new rate of radiation:
32×10⁵ = (7.80×10⁻⁶) T⁴
T = 800.3
The temperature is 800 K, or about 527 ° C.
Answer:
Albert Einstein was from Germany he was born theoritical physicist, from childhood only he loved mechanical toys, he was highly gifted in Mathematics, He was a world citizen and a scientific genius too. His contribution were:
1) he developed the theory of relativity
2) he also discovered the process of nuclear fission
3)he developed the quantum theory of specific heat
4)theory of stimulated emission, on which laser device technology is based
5) law of photoelectric effect
hope it helped you :)
Answer: A. water within a pan is heated and flows in a circular path.
Explanation: Convection is a type of heat transfer that occurs in liquids and gases. Convection occurs when there is a contrast in temperature between two parts of a liquid or gas. The hot part of a fluid rises above, and the cooler part sinks to the bottom resulting to circular motion of the fluid.
