Galileo's contributions to the solar system model include: Data indicating that planets reflect sunlight like the Moon, and his observations of Jupiter's moons orbiting the gas giant. With the assistance of an early telescope that he constructed, Galileo made these two significant discoveries.
Answer:
Refer to the explanation.
Explanation:
To grasp the concept, start with the fundamental idea of meniscus in a graduated cylinder.
"The meniscus refers to the curve noticed at the surface of a liquid due to its container. Depending on liquid surface tension and its adherence to the container’s walls, this meniscus may be concave or convex".
Given this definition, when measuring the volume of water, it's crucial to read the measurement at the bottom of the meniscus curve, as water forms a concave shape.
Taking the reading at eye level ensures an accurate volume, as it aligns with this method.
Additionally, this way of reading balances total pressure with atmospheric pressure by adjusting the cylinder's height to match the water level.
Answer:
Explanation:
To convert from gram / centimeter³ to kg / m³
gram / centimeter³
= 10⁻³ kg / centimeter³
= 10⁻³ / (10⁻²)³ kg / m³
= 10⁻³ / 10⁻⁶ kg / m³
= 10⁻³⁺⁶ kg / m³
= 10³ kg / m³
Thus, to convert the quantity in gm / cm³ into kg/m³, you need to multiply by 10³
2.33 gram / cm³
= 2.33 x 10³ kg / m³.
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.
a) 600 nm b) 300 nm. To explain, the path difference can be represented as 2t, where t is the film thickness. The wavelength of light in the film is expressed as L' = L/n, with L being the wavelength in air and n representing the refractive index of glass. For part (a), to achieve destructive interference, the equation is 2t = L'/2 = L/2n, leading to L = 4*t*n, which results in 600 nm when calculated. For part (b), for constructive interference, the relation is 2t = L' = L/1.25, giving L = 2tn, which equates to 300 nm.
