Answer Part A: radiation
Part B: conduction
Part C: conduction
Part D: conduction
Part E: conduction
Part F: radiation
Part G::radiation
Part H : convection
Explanation:conduction is heat transfer through direct contact
Convection is through molecules or particles of water or air current
Radiation is heat transfer through empty space .
They will repel each other because they both have positive charges.
Some of those checkered polo
Answer:
W = 354.9 J
Explanation:
Given that,
The mass of a bale of hay, m = 23 kg
The displacement, d = 3.9 m
The horizontal force exerted on the hay, F = 91 N
We need to find the work done. We know that,
We know that,
Work done, W = Fd
So,
W = 91 N × 3.9 m
W = 354.9 J
So, the required work done is 354.9 J.
Answer:
The thermal energy released per gram is 19.2 kJ/g.
(3) is correct option.
Explanation:
Given that,
Weight of hydrocarbon = 2.50 g
Heat capacity
We need to calculate the thermal energy released
Using formula of thermal energy
Heat released =heat absorb by calorimeter+heat absorb by water

Put the value into the formula


Now, The thermal energy released per gram

Put the value into the formula


Hence, The thermal energy released per gram is 19.2 kJ/g.