A company is creating a new cylindrical container to replace its original cylindrical container.´ The new container will have 4 times the volume of the original container.

´ The height of the new container will remain the same as the height of the original container.

The length of the radius of the new container will be -

f 4 times the length of the radius of the original container
g 8 times the length of the radius of the original container
h 2 times the length of the radius of the original container
j 16 times the length of the radius of the original container

Answers

Answer 1

Answer: The correct option is h. " 2 times the length of the radius of the original container"

Reason:
V(old) = pi r^2 h ... r = old radius
V(new) = 4pi r^2 h = pi R^2 h R = new radius
4pi r^2 h = pi R^2 h ... pi and h cancel
4r^2 = R^2
R = 2r

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White light is shining on a green grape. The grape _____.absorbs green light
reflects green light
reflects all colors of light except green
transmits green light

Answers

The grape absorbs all colors except green, and green light is the
only light that remains to bounce around and enter people's eyes.

This is a big part of the reason why, whenever somebody looks at
the grape, they remark "Oh look ! The grape is green !"

Answer:

reflects green light.

Explanation:

Which statement(s) correctly compare the masses of protons, neutrons, and electrons?

Answers

FULL ANSWER

Neutrons and protons make up a nucleus and they are in the middle of an atom. Electrons surround the nucleus. Opposite charges attract each other. Because of this, protons do not attract other protons and electrons do not attract other electrons. Instead, protons attract electrons and electrons attract protons. When someone looks at the elements on the periodic table, they can see how many protons are present by looking at the atomic number. Since atoms have to have an equal amount of each, if an element contains 36 protons, it also has 36 electrons.

Advantages and disadvantages of nuclear energy

Answers

Answer:

Nuclear energy has some advantages over traditional methods of producing electricity. It has little impact on air quality and is more efficient than traditional methods of producing electricity. It does, however, use a nonrenewable resource, uranium. Uranium must be mined just like coal, which does have detrimental effects on the environment. Nuclear power plants also produce radioactive waste, which leads to difficulties in storage. Also, nuclear power plants use large amounts of water and can contribute to thermal pollution.

Advantages
Incredibly efficient
emmisionless
high energy density

Disadvantages
Non renewable
potential safety hazard
decomissioning of plants and disposal of nuclear waste is expensive and time consuming

An unbalanced force of 40. newtons keeps a5.0-kilogram object traveling in a circle of radius
2.0 meters. What is the speed of the object?
(1) 8.0 m/s (3) 16 m/s
(2) 2.0 m/s (4) 4.0 m/s

Answers

This can be answered using the formula of centripetal force. In the given problem, the centripetal force (40 N), mass (5 kg), radius (2 m) are all named, except for the speed. The formula is shown below:

F = mv^2 / r

Substituting the given values:

40 N = 5kg(v^2) / 2
80 = 5 * v^2
v^2 = 16
v = 4

Therefore, the correct answer is 4.0 m/s (4).

When the engineer first sees the car, the locomotive is 100m from the crossing and its speed is 30m/s. If the engineer reaction time is 0.47 s what should the magnitude of the minimum deceleration to avoid an accident?