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Elis [28]
3 years ago
9

Janelle is exploring the relationship between the brightness of a light bulb and the current that powers it. When applying these

currents to the same bulb, the bulb is brighter when the current is greater. Which lists the currents in the order of the bulb brightness they cause from most bright to least bright?
a) WYXZb) YWZXc) WYZXd) XZWY
Physics
1 answer:
Vlada [557]3 years ago
7 0

Answer:B

Explanation:

Y is the brightest bulb

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If water is leaking from a certain tank at a constant rate, is it leaking at a rate that is greater than 12 liters per hour?(1 l
Margarita [4]

Answer:

Yes  it is possible because 3.33 is greater than 2.

Explanation:

Given that,

1 liter = 1000 milliliters

Suppose water is leaking from the tank at a rate that is greater than 2 milliliters per second.

We need to change the unit in ml/s

12 lit/hr=\dfrac{12000}{3600}

12 lit/hr=3.33\ ml/s

Hence, Yes  it is possible because 3.33 is greater than 2.

5 0
3 years ago
What is the triboelectric effect?
SSSSS [86.1K]

Answer:

The triboelectric effect is an electrical phenomenon where certain materials become electrically charged after coming into contact with another, different, material. The polarity and strength of the charges produced differ according to material and surface smoothness.

Explanation:

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6 0
2 years ago
The tomato is dropped. What is the velocity, v, of the tomato when it hits the ground? Assume 85.6 % of the work done in Part A
IRISSAK [1]

Answer:

v = 4.1 \sqrt{h}

Explanation:

Let the mass of tomato is m and the height from which it falls is h.

Let the tomato its the ground with velocity v.

The potential energy of the tomato at height h

U = m x g x h

The kinetic energy of tomato as it hits the ground

K = 1/2 mv^2

According to the question,

85.6 % of Potential energy = Kinetic energy

\frac{85.6}{100}\times m\times g\times h = \frac{1}{2}\times m\times v^{2}

v = 4.1 \sqrt{h}

7 0
4 years ago
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A tank is full of oil weighing 40 lb/ft^3. The tank is an inverted right circular cone (with the base at the top) with a height
krok68 [10]

Answer:

26945.6 ft⋅lbf

Explanation:

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Pi*(4)*(5/3) = 20.94 ft^3

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Mass = (40)*(20.94)

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Work = Force*Height

Force = Mass*Acceleration

Acceleration will be gravitational acceleration

Work = (837.6)*(32.17)*(1)

Work = 26945.6 ft⋅lbf

8 0
3 years ago
Does Newton’s 1st Law of Motion apply to sports
Ksenya-84 [330]

Answer: Yes indeed it does.

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3 years ago
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