PHYSICS HIGH SCHOOL

Which
factors will increase the speed of a sound wave in the air?

Answers

Answer 1
Answer: A higher temperature, stiffer materials, and less dense materials increase the speed of sound.
Answer 2
Answer:

Answer:

Temperature

Explanation:

Related Questions

Restate newton's third law of motion
The acceleration due to gravity on Jupiter is greater than that on Earth. On Jupiter, a person will weigh .
a ball is dropped from rest at a height of 80 m above the ground. what is the speed just as it hits the ground?
When driving downhill, your vehicle will accelerate and start moving fast, due to _______________.a. kinetic energy b. gravity c. the amount of pressure you put on the accelerator pedal d. wet pavement
Holden is trying to determine the velocity of his race car. He went 20 meters east, turned around, and went 40 meters west. He turned the car one more time and went 35 meters east. His car was 15 meters from the starting line. This took 5 seconds.What is the car’s velocity? A. 3 m/s west B.3 m/s east C. 19 m/s west D. 19 m/s east

A cat jumps 1m forward, then crawls 0.2m backwards. What is the displacement of the cat?

Answers

I think its 0.8m because 1+(-0.2)=0.8
Displacement refers to how far out of place an object is. So if the cat jumps a meter forward, than crawls back .2 meters, the cat is .8 meters out of place

An object is located 51 millimeters from a diverging lens. The object has a height of 13 millimeters and the image height is 3.5 millimeters. How far in front of the lens is the image located? A. 1.12 millimeters
B. 13.7 millimeters
C. 51 millimeters
D. 189 millimeters

Answers

The correct answer is letter B. 13.7 millimeters. An object is located 51 millimeters from a diverging lens. The object has a height of 13 millimeters and the image height is 3.5 millimeters.

mi / mo = hi / ho
mi / 51 = 3.5 /13
178.5 = 13 mi
mi = 13.7 mm

Which is an example of a wedge?
a. bowl
b. spoon
c. fork
d. knife

Answers

the answer is d.... Knife.

Hope this helped :)

Which force is always directed toward the center of a circle?A. normal force
B. nuclear force
C. centrifugal force
D. centripetal force

Answers

The answer is D. centripetal force
This definition of centripetal force is a force acting towards the center of an object moving in a circular motion. Acceleration is the rate of which velocity changes over a period of time. If you pick a point on say a rotating circle and find the tangential velocity at each point it goes through, the acceleration would be towards the middle. 

One light-hour is the distance that light travels in an hour. How far is this, in kilometers? (Recall that the speed of light is 300,000 km/s.) _______A) 18 million kmB) 1.08 billion kmC) 300,000 kmD) 9.46 trillion kmE) 100 million km

Answers

Answer:

B 1.08 BILLION

Explanation:

SEE ATTACHMENT

A current of 2.0A flows through a light bulb. What is the amount of charge flowing through the light bulb in 40 seconds?

Answers

Answer:

Quantity of charge = 80 Coulombs

Explanation:

Given the following data;

Current = 2 A

Time = 40 seconds

To find the amount of charge flowing through the light bulb;

Mathematically, the quantity of charge passing through a conductor is given by the formula;

Quantity of charge = current * time

Substituting into the formula, we have;

Quantity of charge = 2 * 40

Quantity of charge = 80 Coulombs
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If we want to know the velocity that an object is traveling, we must know thedistance and the time.distance and the speed.time and the direction.direction and speed.
Which "sphere" does an astronomer most directly study?a. biosphere b. exosphere c. geosphere d. cryosphere E. atmosphere F. hydrosphere
A body mass 30 kg is traveling in space at a speed of 10 m/s. Given that the formula for kinetic energyis KE = 0.5 * m * v^2, and m is mass, v is speed
Suppose you are in an elevator. As the elevator starts upward, its speed will increase. During this time when the elevator is moving upward with increasing speed, your weight will be:_______.a) greater than your normal weight at rest.b) equal to your normal weight at rest.c) less than your normal weight at rest.