When the pitch of a sound rises, what is true for amplitude, wavlength, and frequency?

Answers

Answer 1

Answer: both frequency and wavelength changes

Related Questions

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What happens to a mirror when a ray is directed at it
Which nucleus would be least likely to undergo radioactive decay?
Grass obtains 10% of the energy of the Sun. When a mouse eats the grass, it gets only _____ of the Sun's energy while _____ is lost as heat. 0.1%; 0.9% 1%; 0.9% 0.01%; 0.009%
When evaporation occurs in a dish of water, the molecules left behind in the water: a) Are larger in size. b) Are more concentrated. c) Are less dense. d) Are transformed into gas.

Which factor does not affect the resistance of a material?A. thickness

B. weight

C. length

D. temperature

Answers

Answer: The correct answer is option B.

Explanation:

Resistance is the property of the material which resists the flow of current.

The expression for the resistance is as follows:

$R=(\rho l)/(A)$

Here, $\rho$ is the density of the wire, l is the length of the wire and A is the area of the cross section of the wire.

The resistance of the wire depends on the length of the wire, area of the cross section of the wire and the temperature.

The thicker wire has less resistance. The thinner wire has more resistance.

The longer wire has more resistance in comparison to the shorter wire in length. The resistance of the wire increases with increase in temperature.

The resistance does not depend on the weight of the wire.

Therefore, the correct option is weight.

the best answer is b

Objects on the moon's surface have an acceleration due to gravity one-sixth that on the earth's. What would the 40 kg boy weigh on the moon? (Round answer to nearest tenth.)

Answers

acceleration is the same as the gravitational force. On earth that is 9.81 m/s^2. F=ma so if the acceleration is 1/6, then so if the force (weight). 40/6 N is your answer.

Which statements describe characteristics of all liquids? Check all that apply. Liquids have the ability to change shape. Liquids flow, even with some resistance. Liquids have definite volume. Liquids expand to fill containers. Liquids have molecules that slip past each other.

Answers

Answer;

Liquids have the ability to change shape.
Liquids flow, even with some resistance.
Liquids have definite volume
Liquids have molecules that slip past each other.

Explanation;

Liquids are one of the three states of matter, others being solids and gases.
Liquids are characterized by particles that are apart as compared to solid particles which are very closely packed, however they are still in contact unlike the case of gaseous particles.
Liquids have a definite volume but an indefinite shape, thus they occupy the volume of the container they are put.
Additionally, they are capable of flowing and take any shape. This is due to the presence of inter-molecular forces which allow the molecules to slide past each other freely.

answer:

liquids have he ability to change shape

liquids flow even with some resistance

liquids have a definite volume

liquids have molecules that slip past each other

There is a flashing yellow light at the intersection you are approaching. What does the flashing yellow light indicate, and what should you do to safely navigate this intersection?

Answers

A flashing yellow light mean emanate with caution.

A 25-gram paper cup falls from rest off the edgeof a tabletop 0.90 meter above the floor. If the
cup has 0.20 joule of kinetic energy when it hits
the floor, what is the total amount of energy
converted into internal (thermal) energy during
the cup’s fall?
(1) 0.02 J (3) 2.2 J
(2) 0.22 J (4) 220 J

Answers

So a cup falls from the table top to the ground and acquires 0.20 J of kinetic energy in the moment it hits the ground and we want to know what is the total amount of energy converted into thermal energy. While it is on the table, the cup has potential energy and the kinetic energy is 0. The potential energy of the cup is Ep=m*g*h where m=mass of the cup, g= gravitational acceleration of 9.81m/s^2 and h=height of the table. So Ep=0.025*9.81*0.9=0.220725 J. That potential energy converts into kinetic energy and into thermal energy via friction that the air is causing. So Ep=Ek+Efriction. From here: Efriction=Ep-Ek=0.220725 J-0.20J=0.020725J So the correct answer is (1) 0.02J

What is the frequency between two turning forks if one has a frequency of 520 Hz and 528 Hz?

Answers

Answer:

Two tunnig fork of frequency 520 Hz and 524Hz are vibrated together. It means beats form due to it .

f₁ = 524 Hz

f₂ = 520 Hz

Beat period = 1/number of Bea are formed per unit time

= 1/(f₁ - f₂)

= 1/(524 - 520)

= 1/4 sec

Now, time inveral between successive maximum and minimum intensities = beat period= 1/4 sec

Explanation:

Other Questions

How much energy is used when 100w light bulb is on for 1 minute?

A scientist told his student assistants that he had sorted groups of mice by their intelligence and asked the assistants to assess the groups’ maze-solving abilities. The scientist had not actually sorted the mice by intelligence. The students rated the “highest intelligence” group of mice as the best maze solvers and the “lowest intelligence” group as the worst maze solvers. What was the scientist trying to demonstrate by doing this experiment?Experimental subjects should never be put into groups. Mice should not be judged by their intelligence. Higher intelligence mice are better maze solvers. People can introduce their own biases into an experiment.

In 1911, Ernest Rutherford and his assistants Geiger and Marsden conducted an experiment in which they scattered alpha particles (nuclei of helium atoms) from thin sheets of gold. An alpha particle, having charge 2e and mass 6.64 10-27 kg, is a product of certain radioactive decays. The results of the experiment led Rutherford to the idea that most of an atom's mass is in a very small nucleus, with electrons in orbit around it. Assume an alpha particle, initially very far from a stationary gold nucleus, is fired with a velocity of 1.50 107 m/s directly toward the nucleus (charge 79e). What is the smallest distance between the alpha particle and the nucleus before the alpha particle reverses direction?

One light beam has wavelength, λ1, and frequency, f1. Another light beam has wavelength, λ2, andfrequency, f2. Write a proportion that shows how the ratio of the wavelengths of these two light beams is related to the ratio of their frequencies.