3 years ago

What are two examples of common units for each of the above measurements

Physics

1 answer:

kap26 [50]3 years ago

3 0

Density: g/mL, kg/cubic meter

Volume: L, teaspoon

Mass: g, MeV/sq. C

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A 1800kg car has a velocity of 30 m/s to the east what is the momentum of the car <br> p=m(v)

Anastasy [175]

Answer:

54000 kg*m/s

Explanation:

1800*30= 54000

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1 year ago

How long must a current of 100mA flow so as to transfer a charge of 80 C?

defon

Answer:

800s

Explanation:

Q=It

where,

Q=80c

I =100MA=0.1A

t=?

Q=It

800=0.1×t

t=80×0.1

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3 years ago

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An ideal spring with spring constant k is hung from the ceiling. The initial length of the spring, with nothing attached to the

hram777 [196]

The mass m of the object = 5.25 kg

<h3>Further explanation</h3>

Given

k = spring constant = 3.5 N/cm

Δx= 30 cm - 15 cm = 15 cm

Required

the mass m

Solution

F=m.g

Hooke's Law

F = k.Δx

$\tt m.g=k.\Delta x\\\\m.10=3.5\times 15\\\\m=5.25~kg$

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2 years ago

such smut. when he asks how this goal can be accomplished he volunteers to preview every film that will be shown in town. If Ada

juin [17]

What does this all mean sorry ignore me

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2 years ago

If a soap bubble is 115 nm thick, what wavelength is most strongly reflected at the center of the outer surface when illuminated

sp2606 [1]

Answer:

$611.8$ nm

Explanation:

$n_{oil}$ = Index of refraction of soap bubble = 1.33

$t$ = thickness of the soap bubble = 115 nm = 115 x 10⁻⁹ m

$\lambda$ = wavelength of light = ?

$m$ = order = 0

For reflection , the necessary condition is

$2 n_{oil} t = (m + 0.5) \lambda$

$2 (1.33)(115\times 10^{-9})= (0 + 0.5) \lambda$

$\lambda = 6.118\times 10^{-7}$

$\lambda = 611.8$ nm

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2 years ago