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4 years ago

The following is current scientific evidence supporting the nebular theory on the formation of the solar system.

Physics

2 answers:

tatyana61 [14]4 years ago

7 0

A the answer
hope it helps

Feliz [49]4 years ago

4 0

A.the composition of the inner and outer planets, current observations of star formation, and the motion of the solar system I hope this helps

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Around what year can Carbon-14 dating be used up to and why?

Fofino [41]

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3 years ago

Use the drop-down menus to order the steps for writing chemical names.

jekas [21]

Answer:3,2,4,5,1

Explanation:

I just did it on edgenuity

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3 years ago

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Which graph shows the relationship between temperature, X, and kinetic energy, Y?

alexandr1967 [171]

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4 years ago

a ballon filled with nitrogen gas has a small leak. Another ballon filled with hydrogen gas has an identical leak. How much fast

VashaNatasha [74]

Answer:

4 times that of nitrogen gas, N2.

Explanation:

Let R1 be the rate of diffusion of nitrogen gas, N2.

Let R2 be the rate of diffusion of Hydrogen gas, H2.

Let M1 be the molar mass N2

Let M2 be the molar mass of H2.

Next, we shall determine the molar mass of N2 and H2.

This is illustrated below below:

Molar mass of N2 (M1) = 2 x 14 = 28 g/mol

Molar mass of H2 (M2) = 2 x 1 = 2 g/mol

Finally, we shall determine the rate of diffusion of Hydrogen gas, H2 as follow:

R1/R2 = √(M2/M1)

M1 = 28

M2 = 2

R1/R2 = √(M2/M1)

R1/R2 = √(2/28)

R1/R2 = √(1/14)

R1/R2 = 0.27

Cross multiply

R1 = R2 × 0.27

Divide both side by 0.27

R2 = R1/0.27

R2 = R1 × 1/0.27

R2 = R1 × 4

R2 = 4R1

Therefore, the rate of diffusion of H2 (R2) is 4 times that of N2 (R1)

6 0

3 years ago

The brake in most cars makes use of a hydraulic system. This system consists of a fluid filled tube connected at each end to a p

Maksim231197 [3]

Answer:

The force at the brake pad = 250 N

Explanation:

The hydraulic brake system works on the Pascal's Principle for pressure transmission in fluids; the pressure applied to a fluid is transmitted undiminished in all directions.

For hydraulic systems, the pressure applied to the brake pedal is transmitted undiminished through the fluid filled tube, connected at each end to a piston, to the brake pad.

Hence, mathematically,

P(brake pedal) = P(break pad)

Pressure is given as the force applied divided by the cross sectional Area perpendicular to the direction of applied force.

P(brake pedal) = (Force applied on the brake pedal) ÷ (Cross Sectional Area of the brake pedal)

Force applied on the brake pedal = 50 N

Cross Sectional Area of the brake pedal = 3 cm²

P(brake pedal) = (50/3) = 16.67 N/cm²

P(brake pad) = P(brake pedal) = 16.67 N/cm²

P(brake pad) = (Force applied on the brake pad) ÷ (Cross Sectional Area of the brake pad)

Force applied on the brake pad = F = ?

Cross Sectional Area of the brake pad = 15 cm²

16.67 = (F/15)

F = 16.67 × 15 = 250 N

Hence, the force at the brake pad = 250 N

Hope this Helps!!!

7 0

4 years ago