Which type of seismic waves produces the most severe ground movement?

Answers

Answer 1

Answer: The surface waves are the type of seismic waves that produce the most severe ground movement. This wave is slow in nature and so produces a rolling effect similar to a surface wave in a pond. This kind of wave is far more devastating than the P waves and the S waves. The surface waves have the capacity to shake a building from side to side until it collapses. This kind of wave moves in a pattern similar to a circle. It actually originates at a point and then start moving outwards in a circle.

Answer:

The scientist is E. Thomson.

Explanation:

In the late nineteenth century, physicist J.J. Thomson started trying different things with cathode beam tubes. Cathode beam cylinders are fixed glass tubes from which the greater part of the air has been emptied. A high voltage is applied crosswise over two terminals toward one side of the cylinder, which makes a light emission stream from the cathode (the contrarily charged anode) to the anode (the emphatically charged cathode).

The cylinders are called cathode beam tubes on the grounds that the molecule bars or “cathode beam” begins at the cathode. The beam can be distinguished by painting a material known as phosphors onto the most distant finish of the cylinder past the anode. The phosphors sparkles, or produces light, when affected by the cathode beam.

A 250 ml flask contains He at a pressure of 700 torr and a temperature of 25 degrees c. What is the mass of He present?

Answers

Answer:

0.038 g He

Explanation:

From the question we are given;

Volume of the flask, V = 250 mL

Pressure of He, P = 700 torr

Temperature, T = 25°C, but K = 273 + °C

= 298 K

We are required to calculate the mass of Helium present in the flask.

We are going to use the ideal gas equation to first get the number of moles of He present in the flask.

Ideal gas equation, PV = nRT, where n is the number of moles and R is the ideal gas constant.

In this case, R will be 62.364 L.Torr/mol.K, since the pressure is in torr.

Rearranging the equation;

n = PV ÷ RT

= (0.25 L × 700 torr) ÷ (62.364 × 298 K)

= 0.00942 moles

With the number of moles, we can calculate the mass of He.

Mass = Number of moles × molar mass

Molar mass of He = 4.0 g/mol

Therefore,

Mass = 0.00942 moles × 4.0 g/mol

= 0.03768 g

= 0.038 g He

One balloon was only partly filled when put on the plane. During the flight, the balloon volumeincreased from 7 L at 1.0 atm to 9 L. What was the cabin pressure on the airplane during the flight?
(Assume the balloon stretched very easily and the temperature was constant.)

Answers

Answer:

P₂ = 0.8 atm

Explanation:

Given data:

Initial pressure = 1 atm

Initial volume = 7 L

Final volume = 9 L

Final pressure = ?

Solution:

P₁V₁ = P₂V₂

P₁ = Initial pressure

V₁ = Initial volume

P₂ = Final pressure

V₂ = Final volume

Now we will put the vales in formula.

P₁V₁ = P₂V₂

P₂ = P₁V₁ /V₂

P₂ = 1 atm × 7 L / 9 L

P₂ = 7 atm. L / 9 L

P₂ = 0.8 atm

Is bro2 polar or nonpolar

Answers

Bro2 is polar because the rules for overall polarity of Neutral Species Arrangement of Group Linear Trigonal Planar Tetrahedral Trigonal Bipyramidal Octahedral Polarity if atoms on either side of the center atom are different, the species is polar if any group around the central atom is different.

What factors of nuclear reactors cause it to be so complex? Select all that apply.A) the chain reaction must be controlled at all times
B) without proper cooling the reactor will overheat
C) requires multiple different types of materials for the fuel rods
D) radiation can leak if not properly contained and cause death and destruction to nearby life