PHYSICS HIGH SCHOOL

A periodic wave has a fixed pattern that is repeated. What is one completion of the wave pattern called?a) period
b) frequency
c) amplitude
d)cycle
e) phase

Answers

Answer 1
Answer: It is called cycle. Letter D
Answer 2
Answer:

Answer:

cycle. d

Explanation:

plato

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A 92.0-kg skydiver falls straight downward with an open parachute through a vertical height of 325 m. The skydiver's velocity remains constant. What is the work done by the nonconservative force of air resistance, which is the only nonconservative force acting? (Assume that up is the positive direction.) a. +2.93 times 10^5 J b. 0J c. Answer is not obtainable, because insufficient information about the skydiver's speed is given. d. -2.93 times 10^5 J

Answers

Answer: Workdone293.02KJ

Explanation: The equation to use to calculate Workdone = Change in KE + Change in PE

Assuming velocity is constant,KE becomes 0

Workdone= Change in PE=mg

W=92×9.8×325=293.02KJ

What is the sequence of the energy transformations that occur in a nuclear reactor

Answers

Nuclear reactors use uranium, consisting of solid ceramic pellets. The uranium atoms split through the process of fission which produces heat energy. Nuclear power plants obtains the heat needed to form steam that rotates the turbine to produce electrical energy which is being distributed to houses wherein electrical energy is utilized to different appliances.

Answer:

the answer is b

Explanation:

Why are x-rays and the radiation emitted by radioisotopes called ionizing radiation?

Answers

Ionizing radiation is any type of particle or electromagnetic wave that carries enough energy to ionize or remove electrons from an atom. There are two types of electromagnetic waves that can ionize atoms: X-rays and gamma-rays, and sometimes they have the same energy. CREDIT: PhysicsCentral.com

The equation E = mc2 relates energy andA. force
B. work
C. gravity
D. mass

Answers

The equation E = mc² relates energy and mass and the correct option is option D.

The equation was formulated by Albert Einstein as part of his theory of special relativity. In this equation, "E" represents energy, "m" represents mass, and "c" represents the speed of light in a vacuum, which is approximately 3 x 10⁸ meters per second. The equation states that energy is equal to the mass of an object multiplied by the square of the speed of light.

This equation demonstrates the equivalence between mass and energy, suggesting that mass can be converted into energy and vice versa. It is a foundational equation in physics and has significant implications in understanding the relationship between matter and energy.

Thus, the ideal selection is option D.

Learn more about Energy, here:

brainly.com/question/1932868

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 E=mc2 is when energy is set equal to mass then it is multiplied by the velocity of light squared. The equation relates to energy and D.Mass

A lithium oxide compound is represented by which formula?

Answers

Li2O is the molecular formula for lithium oxide.

the answer is Li2O

good luck

Water enters a baseboard radiator at 180 °F and at a flow rate of 2.0 gpm. Assuming the radiator releases heat into the room at a rate of 20,000 Btu/ hr., what is the temperature of the water leaving the radiator?

Answers

Answer:

Temperature of water leaving the radiator = 160°F

Explanation:

Heat released = (ṁcΔT)

Heat released = 20000 btu/hr = 5861.42 W

ṁ = mass flowrate = density × volumetric flow rate

Volumetric flowrate = 2 gallons/min = 0.000126 m³/s; density of water = 1000 kg/m³

ṁ = 1000 × 0.000126 = 0.126 kg/s

c = specific heat capacity for water = 4200 J/kg.K

H = ṁcΔT = 5861.42

ΔT = 5861.42/(0.126 × 4200) = 11.08 K = 11.08°C

And in change in temperature terms,

10°C= 18°F

11.08°C = 11.08 × 18/10 = 20°F

ΔT = T₁ - T₂

20 = 180 - T₂

T₂ = 160°F
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