As current flows through a series circuit, it is diminished by the work it performs in the resistance(s). TRUE or FALSE

Answers

Answer 1

Answer:

The statement “As current flows through a series circuit, it is diminished by the work it performs in the resistance(s)” is true.

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Multiple Choice: A small amplitude transverse wave is travelling on a string. The frequency of the wave is suddenly doubled. Which one of the following is a true statement?a) The period of the wave doubles
b) The wavelength doubles
c) The speed of the wave doubles
d) The wavelength is cut in half
e) The speed of the wave is cut in half

Answers

The wavelength of the string is cut in half. The answer is D. The higher the frequency the shorter the wavelength. They are inversely proportional.

Final answer:

Doubling the frequency of a transverse wave on a string would result in the wavelength of the wave being halved. This is due to the inverse relationship between frequency and wavelength in the context of wave speed remaining constant.

Explanation:

When considering a transverse wave travelling on a string, if the frequency is suddenly doubled, then the wavelength would be cut in half rather than any other given option. This is because the speed of a wave is determined by the medium through which it travels—in this case, the string—rather than its frequency or amplitude. Because the speed remains constant when the frequency doubles, the only factor left to adjust is the wavelength, according to the wave speed equation 'v = fλ', where 'v' is wave speed, 'f' is frequency, and 'λ' is wavelength. Thus, frequency and wavelength have an inverse relationship: if frequency increases (doubles, in this case), wavelength must decrease (halve) to maintain the constant wave speed.

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15. A ball attached to a string is being swung in a clockwise circular path as shown in Figure 3-1. In which directionwill the acceleration on the ball be when the ball passes point A?
a. direction a
b. direction b
c. direction c
d. direction d

Answers

A ball attached to a string is being swung in a clockwise circular path as shown in Figure 3-1. direction will the acceleration on the ball be when the ball passes point A is direction a. Hence option A is correct.

Angular velocity is "rate of change of angular displacement with respect to time". i.e. ω= dθ/dt. it is also defined as angular displacement over time. i.e. ω = angular displacement/Time.

Angular velocity shows how much angle can be covered in unit time. It's SI unit rad/s. direction of the Agular velocity is given by right hand thumb rule.

Angular acceleration is rate of change of Angular velocity with respect to time.

i.e. α = dω/dt if an object changes its angular velocity in short time, we can say that it has greater angular acceleration. It is expressed in rad/s².

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Process of changing a liquid into a gas

Answers

Boiling. The temperature at which a liquid begins to boil is called the boiling point.

Answer:

Evaporation jsut took teST LOL

Explanation:

Will an object with a density of 1.05 g/ml float or sink in water? Explain

Answers

The object will sink, because it is more dense than water.

Let's see this in detail. There are two forces acting on the object:

- its weight, which points downward, given by

$W=mg=\rho_o V_o g$

where $\rho_o$ is the object's density, $V_o$ is its volume, and g is the gravitational acceleration.

- The buoyancy force, which points upward, given by

$B=\rho_w V_w g$

where $\rho_w$ is the water density, $V_w$ is the volume of water displaced by the object.

We see that it is always $W>B$ , so the object will sink. In fact:

$\rho_o > \rho_w$ . We are told the object's density is 1.05 g/mL, while the water density is 1.00 g/mL.

$V_o \geq V_w$ : the two volumes are equal when the object is completely submersed, and the volume of water displaced cannot be greater than the volume of the object.

So, W > B, and the object will sink.

The density of water is very close to 1.0 gm/ml.
The object is more dense than water.
It will sink in water.

What is produced when calcium reacts with fluorine in a synthesis reaction

Answers

Calcium fluoride is produced. It is one Calcium atom bonded to two fluoride atoms. The Calcium atom receives one electron from one fluoride and a second electron from the second fluoride atom. As a result of receiving the two electrons, Calcium will have a negative charge. The two fluorides become positive from losing an electron. The positive and negative charge attraction keeps the atoms close together to form an ionic bond.

All of the following are reasons that psychologists use a systematic method to conduct research except __________.

Answers

Answer: To help eliminate subjectivity

Explanation:

Edgenuity 2020

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