Answer:
Volume = 2m³
Explanation:
The pressure of a gas is inversely proportional to its volume when its temperature is constant.
P₁V₁ = P₂V₂
V₂ = (P₁V₁) / P₂
V₂ = (4atm x 0.5m³) / 1atm
V₂ = 2 m³
Answer:
Word for the first blank: gravity
Word for the second blank: matter
Explanation:
The only way debris from the impact with Earth can be held close to Earth is due to a force. The only force that could be acting from Earth is "the force of gravity".
The gravitational pull of this new object being formed, increases proportional to its mass as more and more "matter" accumulates. And the accretion process is now on its way.
B. It reflects a lot of light, transmits almost no light, and absorbs some light.
50. The atomic mass is essentially a tally of all of the atoms in the nucleus, since electrons are essentially negligible in mass.
1. Height of the object is 5 cm
The object distance (u) is 18 cm
The focal length is 10 cm
To calculate the image distance (v) we use;
1/f=1/v+1/u
1/v = 1/10-1/18
= 8/180
Therefore v = 180/8
= 22.5 cm
2. Height of the image
Magnification = v/u = Height of image/height of object
Therefore;
22.5/ 18= x/5
x = (22.5×5)/18
x = 6.25 cm
Therefore; the height of the image is 6.25 cm