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Lilit [14]
3 years ago
8

When a ball is being lifted work is being done to it, giving it ______ energy.

Physics
1 answer:
Mrac [35]3 years ago
6 0
Kinetic or Potential energy?

Kinetic energy is energy expended
Potential energy of energy stored










***Potential***
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• Why do some earthquakes cause more damage than others?
Anit [1.1K]
Because each fault line has different types of pressure being held, and some fault lines can hold more pressure before being released, resulting a larger eq, and some other lines hold less pressure resulting in a smaller eq... hope I was helpful :)
4 0
3 years ago
In your research lab, a very thin, flat piece of glass with refractive index 1.20 and uniform thickness covers the opening of a
liraira [26]

Answer:

(a). The thickness of the glass is 868 nm.

(b). The wavelength is 3472 nm.

Explanation:

Given that,

Refractive index = 1.20

Wavelength = 496 nm

Next wavelength = 386 nm

We need to calculate the thickness of the glass

Using formula for constructive interference

2nt=(m+\dfrac{1}{2})\lambda

Put the value into the formula

In first case,

2nt=(m+\dfrac{1}{2})496.....(I)

In second case,

2nt=(m+1+\dfrac{1}{2})386

2nt=(m+\dfrac{3}{2})386.....(II)

From equation (I) and (II)

(m+\dfrac{1}{2})496=(m+\dfrac{3}{2})386

110m=336

m=3.0

Put the value of m in equation (I)

2nt=(2+\dfrac{1}{2})496

t=\dfrac{(3+\dfrac{1}{2})496}{2\times1}

t=868\ nm

The thickness of the glass is 868 nm.

(b). We need to calculate the wavelength

Using formula of constructive interference

2nt=(m+\dfrac{1}{2})\lambda

\lambda=\dfrac{2nt}{(m+\dfrac{1}{2})}

Put the value into the formula

\lambda=\dfrac{2\times1\times868}{\dfrac{1}{2}}

\lambda=3472\ nm

Hence, (a). The thickness of the glass is 868 nm.

(b). The wavelength is 3472 nm.

8 0
4 years ago
A wave has 25 wavelengths in 5 secs. The frequency of the wave is _.
kati45 [8]
Heyyyy I wish I could help but I don’t know
7 0
3 years ago
NHT0015
poizon [28]

Answer:

(1) 1×10⁻⁴

Explanation:

From the question,

α = (ΔL/L)/(ΔT)............. Equation 1

Where α = linear expansivity of the metal plate, ΔL/L = Fractional change in Length, ΔT = Rise in temperature.

Given: ΔL/L = 1×10⁻⁴, ΔT = 10°C

Substitute these values into equation 1

α  = 1×10⁻⁴/10

α = 1×10⁻⁵ °C⁻¹ .

β = (ΔA/A)/ΔT................... Equation 2

Where β = Coefficient of Area expansivity, ΔA/A = Fractional change in area.

make ΔA/A the subject of the equation

ΔA/A = β×ΔT.......................... Equation 3

But,

β = 2α.......................... Equation 4

Substitute equation 4 into equation 3

ΔA/A = 2α×ΔT................ Equation 5

Given: ΔT = 5°C, α = 1×10⁻⁵ °C⁻¹

Substitute into equation 5

ΔA/A = ( 2)×(1×10⁻⁵)×(5)

ΔA/A  = 10×10⁻⁵

ΔA/A  = 1×10⁻⁴

Hence the right option is (1) 1×10⁻⁴

3 0
3 years ago
Is lateral shift or lateral displacement same ?
xxMikexx [17]

Answer:

When a ray of light passes through a glass slab of a certain thickness, the ray gets displaced or shifted from the original path. This is called lateral shift/displacement.

Explanation:

.

7 0
4 years ago
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