PHYSICS HIGH SCHOOL

If a particular atom of an element has five protons a neutral atom of this element would have ________ electrons. A. 0 B. 3 C. 5 D. 8

Answers

Answer 1
Answer:

If a particular atom of an element has five protons a neutral atom of this element would have  5 electrons.

What is an atom?

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

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Answer 2
Answer: C. 5

a neutral atom has no electrical charge. protons are positive and electrons are negative, they need to be the same to make it a neutral atom.

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In which situation is the acceleration of the car negative?
A myth that explains the spots on the moon is called

How many lbs are there in 75.0 kg

Answers

There are no lbs in any kg.
'Pound' is a unit of force, and 'Kilogram' is a unit of mass.
There's no direct conversion between the two, because the weight
of any amount of mass depends on where you take it.

-- On the Moon, 75 kg of mass weighs about  27.4 pounds.

-- On Mars, the same 75 kg of mass weighs about  62.6 lbs.

-- On Earth, the same 75 kg of mass weighs about  165.3 lbs.
165.34669663875 this can be shortened to 165 or 165.3 or 165.35

If the contents of a cell have a solute concentration of 0.04 percent which of these solutions would cause it to swell? A.) 10-percent solute concentration B.) 1-percent solute concentration C.) 0.1 percent solute concentration D.) 0.01 percent solute concentration.

Answers

If the contents of a cell have a solute concentration of 0.04 percent, the solution that would cause it to swell is D) 0.01 percent solute concentration.

If an object is NOT accelerating, then one knows for sure that it is ___.A. at rest
B. moving with a constant speed
C. slowing down
D. maintaining a constant velocity

Answers


"Zero acceleration" means "velocity" that's not changing.

Sadly, it seems that both of these words are almost always
misinterpreted and misunderstood. "Acceleration" does NOT
mean "speeding up", and "velocity" does NOT mean speed.

"Velocity" is the speed AND direction of motion.  So, for example,
'30 miles per hour north' and '30 miles per hour west' are the same
speed but different velocities.

"Acceleration" is ANY change in speed OR direction.  Consider three
different families in three different cars.  One car is speeding up, one is
slowing down, and the third is driving around a curve at a steady speed.
ALL three of the cars are accelerating.

Answer:

Zero acceleration means velocity that's not changing.

Explanation:

Four parallel-plate capacitors are constructed using square plates, and each has a dielectric inserted between the plates.?Rank the capacitance of each capacitor in order from highest to lowest.

A = side length (L/2) ; distance between plates (d) ; dielectric current (k)

B = side length (L) ; distance between plates (d/2) ; dielectric current (4k)

C = side length (2L) ; distance between plates (d) ; dielectric current (2k)

D = side length (L) ; distance between plates (2d) ; dielectric current (2k)

Answers

Final answer:

The capacitance of the four capacitors, ranked from highest to lowest, is B = C (they both have equal capacitance), followed by D, and then A.

Explanation:

The capacitance of a parallel-plate capacitor is given by C = εA/d, where ε is the permittivity of the dielectric material (which is equal to the product of the vacuum permittivity and the relative permittivity or dielectric constant k), A is the area of one of the plates, and d is the separation between the plates.

Applying this formula to the four capacitors and simplifying:

  1. Capacitor A: Cap = k(0.5L)^2/d = 0.25kL^2/d
  2. Capacitor B: Cap = 4k(L)^2/(0.5d) = 8kL^2/d
  3. Capacitor C: Cap = 2k(2L)^2/d = 8kL^2/d
  4. Capacitor D: Cap = 2k(L)^2/(2d) = kL^2/d

When ranked from highest to lowest capacitance, the order will be B = C > D > A.

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What is electromagnetic radiation?

Answers

Electromagnetic radiation is a form of energy that is produced by oscillating electric and magnetic disturbance. Visible light is one type of electromagnetic radiation. Like X-rays and infrared lights which are visible to human eyes.

the transfer of energy by electromagnetic waves traveling through matter or across space

Would a tiger be a consumer or producer?

Answers

Tigers don't produce anything useful, but they are the top of their food chain. They would e top predators, and top predators are always consumers.
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