If u were holding the flashlight above the object the shadow would be a circle on the ground if u were holding the flashlight in front of the object it would make a long slim shadow f the object
Ex: if I was standing near a wall and u held a flashlight in my face, not only I will be blinded by the bright light but it make a shadow of my head on the wall. different angles make different shadows
Answer:
V₂ = 379.80 mL
Explanation:
According to <em>Charles' Law,</em> "<em>At constant pressure the volume of given amount of gas is directly proportional to the absolute temperature"</em>. Mathematically it is given as,
V₁ / T₁ = V₂ / T₂ ----- (1)
Data Given:
V₁ = 185 mL
T₁ = -125 °C = 148.15 K ∴ K = °C + 273.15
V₂ = ?
T₂ = 31.0 °C = 304.15 K
Solving eq. 1 for V₂,
V₂ = V₁ × T₂ / T₁
Putting values,
V₂ = 185 mL × 304.15 K / 148.15 K
V₂ = 379.80 mL
Hence, with increase in temperature the volume has also increased.
Gravitational force is much weaker, because it is the force of gravity, or the force that makes smaller objects be pulled towards a much bigger one with a certain amount of force.
Now strong nuclear force, which is very strong, keeps the atomic particles in an atom from separating, and the reason it is so powerful is because the particles in an atom repel each other and this force keeps them from doing .that
Answer:
1.31x10¹¹ g/cm³
Explanation:
The mass of the proton is equal to the mass of the neutron, which is 1.67x10⁻²⁴ g, so the mass of the alpha particle is 4*1.67x10⁻²⁴ = 6.68x10⁻²⁴ g.
1 fm = 1.0x10⁻²³ cm, thus the radius of the alpha particle is 2.3x10⁻¹² cm. If the particle is a sphere, the volume of it is:
V = (4/3)*π*r³, where r is the radius, so:
V = (4/3)*π*(2.3x10⁻¹²)³
V = 5.1x10⁻³⁵ cm³
The density of the particle is the how mass exists per unit of volume, so, it's the mass divided by the volume:
d = 6.68x10⁻²⁴/5.1x10⁻³⁵
d = 1.31x10¹¹ g/cm³
Glass breaks and shatter easily.
