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2 years ago

In what way is a screw similar to an inclined plane?

Physics

2 answers:

ozzi2 years ago

8 0

Answer:

-A screw is an inclined plane wrapped around a cylinder.

Explanation:

zubka84 [21]2 years ago

7 0

Answer:

Explanation:

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You perform a double‑slit experiment in order to measure the wavelength of the new laser that you received for your birthday. Yo

Vitek1552 [10]

Answer:

λ = 5.734 x 10⁻⁷ m = 573.4 nm

Explanation:

The formula of the Young's Double Slit experiment is given as follows:

$\Delta x = \frac{\lambda L}{d}\\\\\lambda = \frac{\Delta x d}{L}$

where,

λ = wavelength = ?

L = distance between screen and slits = 8.61 m

d = slit spacing = 1.09 mm = 0.00109 m

Δx = distance between consecutive bright fringes = $\frac{4.53\ cm}{10}$ = 0.00453 m

Therefore,

$\lambda = \frac{(0.00453\ m)(0.00109\ m)}{8.61\ m}$

6 0

2 years ago

What do the subscript in the formula for ethane repersent

Karolina [17]

The formula for ethane is C2H6. (the 2 and 6 are supposed to be subscripts) they show the number of atoms per element. So there are two carbon atoms and six hydrogen atoms in ethane. The subscript in a chemical formula represents the amount of that atom in that compound's formula. <span>In chemistry, no subscript indicates 1 of that particular atom. HCl contains 1 atom of hydrogen and 1 atom of chlorine, whereas H20 contains 2 atoms of hydrogen and 1 atom of oxygen.It should be noted, however that this does not necessarily hold true for empiracle formulas, since these have been reduced to the simplest whole number ratio and do not necessarily reflect the number of each element present in an actual molecule.

I hope this helps you! Good luck :)</span>

3 0

3 years ago

What is the net force acting on a .15 kg hockey puck accelerating at a rate of 12 m/s2

maw [93]

Answer:

The net force is 1.8N

Explanation:

Given that the formula for force is Force = mass×acceleration. So you have to substitute the values into the formula :

$force = mass \times acceleration$

Let mass = 0.15kg,

Let acceleration = 12m/s²,

$force = 0.15 \times 12$

$force = 1.8$

7 0

2 years ago

Read 2 more answers

A force of 6N is exerted on a cart that is carrying a rock and produces an acceleration of 2 m/s2. If the cart has a mass of 1 k

vaieri [72.5K]

If you use the equation F=ma and re-arrange it to get m = F/a, you'll get the total mass. Then you have to subtract the mass of the cart from the total mass to get the mass of the rock.

Thus, m = 6N over 2m/s^2. The total mass will then be 3kg. Subtracting 1kg from the total mass will then yield you 2kg, which is the mass of the rock. Hope this helps.

6 0

2 years ago

Does a photon emitted by a higher-wattage red light bulb have more energy than a photon emitted by a lower-wattage red bulb

Liono4ka [1.6K]

Answer:

The energy of these two photons would be the same as long as their frequencies are the same (same color, assuming that the two bulbs emit at only one wavelength.)

Explanation:

The energy $E$ of a photon is proportional to its frequency $f$ . The constant of proportionality is Planck's Constant, $h$ . This proportionality is known as the Planck-Einstein Relation.

$E = h\, f$ .

The color of a beam of visible light depends on the frequency of the light. Assume that the two bulbs in this question each emits light of only one frequency (rather than a mix of light of different frequencies and colors.) Let $f_{1}$ and $f_{2}$ denote the frequency of the light from each bulb.

If the color of the red light from the two bulbs is the same, those two bulbs must emit light at the same frequency: $f_{1} = f_{2}$ .

Thus, by the Planck-Einstein Relation, the energy of a photon from each bulb would also be the same:

$h\, f_{1} = h\, f_{2}$ .

Note that among these two bulbs, the brighter one appears brighter soley because it emits more photons per unit area in unit time. While the energy of each photon stays the same, the bulb releases more energy by emitting more of these photons.

6 0

2 years ago