According to the second law, heat, often called thermal energy, cannot be entirely turned into work.
The second statement is closely tied to this law.
We can conclude that some energy dissipates while some is used for work.
The mass of the block submerged in water measures 1.94 kg. We know the water's density to be 1 gm/cm³, with the initial scale reading at 19 N and a change in this reading amounting to 10 N. To determine the mass of the block when it is immersed in water, we apply the gravitational acceleration g, valued at 9.8.
Answer:
a) f₁ = 3.50 m, b) f₂ = 0.84 m
Explanation:
For this task, we will apply the lens formula
1 / f = 1 / p + 1 / q
where f denotes the focal length, p indicates the object distance and q signifies the image distance
a) The location for the image should be q = 3.50 m, while the object is positioned infinitely far away, p = ∞
1 / f₁ = 1 /∞ + 1 / 3.50
f₁ = 3.50 m
b) Meanwhile, the image is located at q = -0.600 m and the object at p = 0.350 m
1 / f₂ = 1 / 0.350 -1 / 0.600
The negative value denotes that the image is positioned before the object
1 / f₂ = 1.1905
f₂ = 1 / 1.1905
f₂ = 0.84 m
