PHYSICS HIGH SCHOOL

All nuclear energy results in the rapid release of energy, such as in atomic bombs. a. True
b. False

Answers

Answer 1
Answer: It is true that all nuclear energy results inthe rapid release of energy, such as in atomic bombs. A process wherein the atom’s nucleusis further divided into two nuclei, that is, fission products, is callednuclear fission. This happens when the nuclei of radioactive elements (e.g.Uranium or Plutonium isotopes) are able to attract neutrons. Because theseisotopes’ nuclei are unstable, an addition to their energy causes them todivide into new pieces of neutron. In nuclear reactors, fission occurs when thepower plant gathers heat from a steam in a physical process. Nuclear reactorsare designed to sustain nuclear chain reactions.
Answer 2
Answer:

Answer:

FALSE

Explanation:

verified answer***

Nuclear energy is released from an atom through one of two processes: nuclear fusion or nuclear fission. In nuclear fusion, energy is released when the nuclei of atoms are combined or fused together. But isn't rapidly release

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If continents continue to drift, is it possible that a new supercontinent will form ? Which continents might be next to each other 200 million years from now.

Answers

Yes, it is already happening. About 270 million years ago the continents collided to form Pangea, and now, after the continents separated they continue to drift apart. Attached is a picture of what it may all look like when they recollide. Scientist are still not really sure. 

What is the unit of work? Explain whether the unit of work is a fundamental uintor derived unit
1.
What do you mean by a unit?
2.
unit or a derived unit.
are the fundamental units used in physics?
al Bureau of Weights and Me​

Answers

Answer:

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Bjorn is holding a tennis ball outside a second floor window (3.5 meters from the ground) and billie jean is holding one outside a third floor window (6.25 meters from the ground) how much more GPE does billie jean's tennis ball have? (each tennis ball has a mass of 0.06 kg)

Answers

The answer is 1.01 x 10^(-11) N. I arrived to this answer through calculating the GPEs of both balls. Bjorn's ball has a GPE of 1.402 x 10^(-11) N. Billie Jean's ball has a GPE of 2.503 x 10^(-11) N. I subtracted the two and I found that Billie Jean's tennis ball has a GPE of 1.01 x 10^(-11) more than Bjorn's tennis ball.

A surface wave on the ocean's surface is an example of a(n) _____ wave.A. gravity
B. seismic
C. mechanical
D. electromagnetic

Answers

C. mechanical is the answer

What the unit for electric current

Answers

The unit of electric current is the Ampere.

1 Ampere of current means that if you set up your chair and
stare at the electrons flowing past one point in the circuit, you'll
see 1 coulomb of charge passing that point every second.

How will you recognize 1 coulomb of charge ?
Well, every electron carries the same amount of charge, and
we know how much that is.  (Read about the Millikan oil-drop
experiment in 1909.)  So we know how many electrons it takes
to carry 1 coulomb of charge past the point you're watching.

All you have to do is count the electrons as they zip past.
Every time you count  6,241,509,343,000,000,000 electrons,
you can tick off 1 coulomb of total charge that they're carrying.
If you reach that count every second, you know the current
passing that point is 1 Ampere.

Answer: amps

Explanation:

In 2005, the space probe Deep Impact launched a 370 kg projectile into Comet Temple 1. Observing the collision helped scientists learn about the comet’s characteristics. The comet is estimated to have a mass of about 9.0 x 10^13 kg.a. Assuming the estimated mass of the comet at that time was correct, at what distance from the comet’s centre was the gravitational force between the comet and the projectile 32 N?

b. Deep Impact also released a probe to fly by the comet and record images of the collision. Determine the strength of the comet’s gravitational field at the probe’s distance of 5.0 x 103 km from the comet.

Answers

Parta a.

Equation: F = G*m1*m2/d^2

Where
F = 32 N
G = 6.67*10^-11 N.m^2/kg^2
m1 = 9.0*10^13kg
m2 =370 kg
d = distance that separate the center of the two objects.

d^2 = G*m1*m2 / F = 6.67*10^-11 N.m^2/kg^2 * 9.0*10^13 kg *370 kg / 32N = 69,409.69 m^2

d = √69,409.69m^2 = 263.5 m

Part B.

The gravitational field of the comet is g = G*m1/d^2

Notice that it does not depend on the mass of other objects.

Notice also that I will use a distance of 5.0 * 10^3 km, because I think that that is the number that you intended to write in the part b. If that is not the number you can put the right number instead because the solution is written step by step.

g = (6.67*10^-11 N*m^2/kg^2)*(9.0*10^13kg)/(5.0*10^3*10^3m)^2 = 2.4*10^-4 N/kg = 2.4*10^-4 m/s^2
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