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Veseljchak [2.6K]
3 years ago
10

Light from a lamp is shining on a surface. how can you increase the intensity of the light on the surface?

Physics
1 answer:
vlada-n [284]3 years ago
4 0
The intensity of a light in a surface follows the inverse square law formula which can be mathematically expressed as,
                         I = k/d²
where I is intensity, d is distance, and k is the proportionality constant. For us to increase the intensity, we should lower the distance from the source to the surface. 
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This link should help you out!!

http://mszopiak.weebly.com/uploads/5/5/8/1/55815541/p_vtgraphskey_mszopiak.pdf
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Which of the following represents a heterygous genotype? A-YY B-yy C-Y^H Y^H D-Yy
Fofino [41]
The only one with two different alleles is d meaning it is heterozygous

D
3 0
3 years ago
Where do you find electromagnetic waves on earth? what are some everyday uses?
Norma-Jean [14]

Answer:

Radio waves are used for communications and radar. Microwaves are used to cook your food. Infrared waves are used in remote controls and are emitted from all warm objects, allowing them to be used to create heat-sensitive cameras.

Explanation:

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8 0
3 years ago
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From inside to out, describe the components of an atom. What makes one element's atoms differ from another element's atoms?
Vesna [10]
From the outside is it’s shell, and on the inside is the nucleus (on the middle) which is made or protons (positive charge) and neutrons (neutral charge which is negate and positive) and Lastly there are electrons (negative charge) that orbit the nucleus like planets orbiting the Sun. The shell gets made as the electrons orbit the nucleus.
How do atoms differ from eachother?- their atoms might have different elections, neutrons, and/ or protons inside of it. Plus the location of the elections might be different too.
4 0
4 years ago
The displacement of particle moving along on x axis is given by x = 18t + 5.0t^2, where x is in meters and t is in seconds Calcu
Masja [62]

Answer:

38 m/s

43 m/s

Explanation:

x = 18t + 5.0t²

The instantaneous velocity is the first derivative:

v = 18 + 10.t

At t = 2.0:

v = 18 + 10.(2.0)

v = 38 m/s

The average velocity is the change in position over change in time.

v = Δx / Δt

v = [ (18t₂ + 5.0t₂²) − (18t₁ + 5.0t₁²) ] / (t₂ − t₁)

Between t = 2.0 and t = 3.0:

v = [ (18(3.0) + 5.0(3.0)²) − (18(2.0) + 5.0(2.0)²) ] / (3.0 − 2.0)

v = [ (54 + 45) − (36 + 20.) ] / 1.0

v = 99 − 56

v = 43 m/s

6 0
3 years ago
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