PHYSICS HIGH SCHOOL

In a transverse wave that travels through a medium, the molecules of the medium vibrateA. at right angles to the direction in which the wave travels.
B. at twice the velocity of the molecules in a longitudinal wave.
C. with smaller amplitudes than the molecules in a longitudinal wave.
D. in the direction in which the wave travels

Answers

Answer 1
Answer: So we wan't to know how the molecules of the medium vibrate when a transverse wave propagates trough that medium. A transverse wave is a wave whos oscilations are perpendicular to the direction of it's propagation. So the molecules in a medium will vibrate perpendicular to the direction of propagation of the wave. So if the wave is moving in the x-direction, the molecules will vibrate in the y-z plane. The correct answer is A. at right angles to the direction in which the wave propagates.

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A snail travels at a rate of 2.37 feet per minute. a. Write a rule to describe the function. b. How far will the snail travel in 6 minutes?

Answers

  a. 
distance = rate*time 
d = 2.37t 

b. 
d = 2.37*6 = 14.22 ft

Answer:

b

Explanation:

A. When changing lanes, what are the safety steps to follow? B. What are the additional steps to follow when passing?

Answers

A. check your mirrors and blindspots carefully for any potential hazards
B. Scan for hazards, e.g., oncoming vehicles, vehicles approaching from rear, merging vehicles;
Check for blind spots;
Signal your intention and accelerate into passing lane;
Accelerate quickly to an appropriate speed

The strength of the force of gravity depends ona. the masses of the objects and their speeds.
b. the masses of the objects and the distance between them.
c. the weight of the objects and their speeds.
d. the masses of the objects and their weights.

Answers

The correct answer to the question is : B) The masses of the objects and the distance between them.

EXPLANATION :

Before going to answer this question, first we have to understand Newton's law of gravitation.

As per Newton's law of gravitation, everybody in the universe attracts every other body with a force called gravitational force or force of gravity which is directly proportional to the product of masses of the two bodies, and inversely proportional to the square of separation distance between them.

Let us consider two bodies of masses M and M' which are separated by a distance R.

The gravitational force acting between them is calculated as -

                           Gravitational force F=\ G(MM')/(R^2)

Here, G is known as universal gravitational force constant.          

From above, we see that force of gravity depends on the masses of the objects and the distance between them.
The strength of the forces of gravity between two objects is completely
determined by their masses and the distance between them.

Their speeds have no effect on the gravitational force, and their weight
IS the gravitational force.

What is the best temperature for a refrigerator?

Answers

the best temperature for a refrigerator is 40 degrees F (4 degrees C)

The best temperature for your refrigerator should be 40 degrees F, 40 degrees C in this case. (: Hope this helped!

Air trapped in the fur of the caribou’s coat functions as _____.

Answers

Answer:

insulation

Explanation:

Conductivity represents the degree of ease through which heat is transmitted through a material.

Any substance that has a high conductivity i.e., can pass heat easily is called a conductor of heat.

Any substance that has a low conductivity i.e., cannot pass heat easily is called a insulator of heat.

Air does not conduct heat well. So, it acts an insulator and traps heat.
it functions as insulation, to keep it warm 

Describes how a simple machine can make work easier?

Answers

simple machines such as ramps lessen the moment required to do work. if a triangle has a base of 5 and the height  is 7, a ramp would make the hypotenuse of this triangle lessoning the total distance. using a²+b²=c² 25+49=c² 74≈8.6 and it is obvious that 8.6 is less than 12 in every unit. other simple machines such as pulleys make it lighter making it simply easier for an object to be lifted.
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