In an astronomical sense, Hydrogen is not considered ice. Astronomy is the study of celestial bodies (e.g. sun, moon, stars, planets, etc.). In astronomical terms, Hydrogen is an element consisting of one electron and one proton. Hydrogen is the lightest of the elements and is the building block of the universe. Stars form from massive clouds of hydrogen gas.

8 0

3 years ago

Read 2 more answers

May somebody help me in this.

aliina [53]

Answer:

answer c. come easy dear.

7 0

3 years ago

A hot air balloon is filled with 1.45 × 10 6 L of an ideal gas on a cool morning ( 11 ∘ C ) . The air is heated to 109 ∘ C . Wha

just olya [345]

Answer:

The volume of air after the balloon is heated = 1.95 × 10⁶ L

Explanation:

Charles Law: Charles' law states that the volume of a given mass of gas is directly proportional to the temperature in Kelvin, provided that the pressure remains constant.

It can be expressed mathematically as,

V₁/T₁ = V₂/T₂

Making V₂ The subject of the equation

V₂ = (V₁/T₁)T₂.................... Equation 1

Where V₁ = Initial Volume, T₁ = Initial Temperature, V₂ = Final Volume, T₂ = final Temperature

Given: V₁ = 1.45 × 10⁶ L, T₁ = 11 °C = (11 + 273) K = 284 K, T₂ = 109 °C = (109 + 273) = 382 K.

Substituting these values into equation 1 above,

V₂ = (1.45×10⁶)382/284

V₂ = 1.95 × 10⁶ L

Therefore the volume of air after the balloon is heated = 1.95 × 10⁶ L

6 0

3 years ago

A muscle builder holds the ends of a masslessrope. At the

Grace [21]

Answer:

Balancing of forces,

In the X-direction:

-Tcos4.5^o +Tcos4.5^o=0

In the Y-direction:

Tsin4.5^o +Tsin4.5^o-m*g=0

2Tsin4.5^o=15*9.81

T=(15*9.81)/(2sin4.5^o)

=937.75 N

Therefore, tension in the rope is 937.75 N.

7 0

3 years ago