Which will have more resistance: 220V, 100W bulb or a 220V, 60W bulb?

Answers

Answer 1

Answer: The power dissipated by something with voltage across it is

(voltage)² / (resistance) .

You can see that resistance is in the denominator of the fraction,
so larger resistances dissipate less power, and smaller resistances
dissipate more power.

Here's an easy way to remember it:
-- Connecting a piece of rubber (high resistance) across the terminals of a battery
uses very little power from the battery.
-- Laying a piece of wire (low resistance) across the terminals of a battery
may draw so much power from the battery that the wire melts.

Since the voltage across both bulbs is expected to be the same, the bulb
designed to dissipate 60 watts has higher resistance than the one designed
to dissipate 100 watts.

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Electrically charged flares that arch up from the Sun are known as _______.

Answers

Electrically charged flares that arch up from the Sun are known as the solar flare or solar prominence. The Solar flare is the sudden brightness of the Sun near its surface. It is mostly accompanied by coronal mass ejection.

Answer:

prominences

Explanation:

Suppose you are looking at a scene that has mountains near the ocean. where do u think the crust should be the thickest?

Answers

the crust is thicker on land so mountains

The psychologist who worked with Peter and helped him associate rabbits with positive things was: a. Mary Covert-Jones
b. Ivan Pavlov
c. Elizabeth Loftus
d. John Watson

Knowing the formula for water and table salt is an example of:_________________memory.
a. episodic
b. procedural
c. semantic
d. echoic

The part of the brain that appears to be involved in the processing of short-term memories into long term is the:
a. hypothalamus
b. hippocampus
c. corpus callosum
d. cerebrum

Answers

1. Mary Cover-Jones

2.Knowing the formula for water and table salt is an example of episodic memory. so d

3.Hippocampus

Answer:

1) Mary Cover-Jones

2) episodic

3) hippocampus

Hope this helped man!

What does the wavelength of visible light waves correspond to?

Answers

The wavelength of the visible range of the electromagnetic spectrum lies between $\boxed{400\,{\text{nm}} - 700\,{\text{nm}}}$ .

Further Explanation:

The Electromagnetic spectrum is the complete range of the electromagnetic radiation which expresses all the radiation starting from the Gamma rays to the radio waves. The electromagnetic spectrum is the detailed spectrum that explains all the electromagnetic radiations.

The electromagnetic radiations are the transverse waves which do not require any medium for their propagation. The electromagnetic waves can easily travel through space. All the electromagnetic radiations travel at the speed of light.

The different radiations in the electromagnetic spectrum are as follows:

Gamma rays

X-rays

Ultraviolet rays

Infrared rays

Micro waves

Radio waves

The wavelength and the frequency ranges for the different electromagnetic radiations is as shown in figure attached.

Therefore, the wavelength of the visible range of the light in the electromagnetic spectrum is $\boxed{400\,{\text{nm}} - 700\,{\text{nm}}}$ .

Learn More:

1. What is the threshold frequency ν0 of cesium brainly.com/question/6953278

2. Calculate the wavelength of an electron (m = 9.11 × 10-28 g) moving at 3.66 × 106 m/s brainly.com/question/1979815

3. What is the kinetic energy of the emitted electrons when cesium is exposed to UV rays brainly.com/question/9059731

Answer Details:

Grade: High School

Subject: Physics

Chapter: Electromagnetic Waves

Keywords:

Electromagnetic spectrum, visible light, EM waves, wavelength, 700nm, 400 nm, 7000 A, frequency, gamma rays, transverse waves.

Explanation:

Visible light is a very part of electromagnetic spectrum. We can see the visible region of the electromagnetic spectrum.

The frequency and the wavelength has an inverse relationship.

For example, the red light has large wavelength and low frequency. Violet has a short wavelength and higher frequency.

The frequency range of visible region is from 400 nm to 700 nm.

a 0.4 kg block rests on a desk. the coefficient of static friction is 0.2. You push the side of the block but do not have a spring scale to measure the force you use. the block does not move. which statement is true about the force of static friction?

Answers

Answer:

D. It is no smaller than $0.78N$

Explanation:

The question is incomplete. These are all the options :

A. It is no larger than $0.78N$

B. It is $0.78N$

C. It is $0.08N$

D. It is no smaller than $0.78N$

To solve this problem, we have the data of :

$m=0.4kg$

Where ''m'' is the mass of the block

μ = 0.2

Where ''μ'' is the coefficient of static friction

If we want to find the magnitude of the force of static friction we need to use the following equation :

$F_(sf)=$ μ. $F_(N)$ (I)

Where '' $F_(N)$ '' is the normal force that the desk exerts on the block. Its magnitude is equal to the weight (because we suppose that the block rests horizontally on the desk).

The weight '' $W$ '' can be calculated as :

$W=m.g$

Where ''m'' is the mass and ''g'' is the acceleration due to gravity.

The value of ''g'' is

$g=9.81(m)/(s^(2))$

The weight of the block is

$W=(0.4kg).(9.81(m)/(s^(2)))$

$W=3.924N$

Now, the weight is equal to the normal force ⇒

$W=F_(N)=3.924N$

Using the equation (I) :

$F_(sf)=(0.2).(3.924N)$

$F_(sf)=0.7848N$

The correct option is D. It is no smaller than $0.78N$

Static friction is greater than Applied force

Plz I need the answer quick!!!
What is the definition of law of conservation of energy

Answers

Answer:

The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. This means that a system always has the same amount of energy, unless it's added from the outside. This is particularly confusing in the case of non-conservative forces, where energy is converted from mechanical energy into thermal energy, but the overall energy does remain the same. The only way to use energy is to transform energy from one form to another.

Explanation:

Hope this helps!

Answer:

means that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another.

Explanation: this is a shorter answer.

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