Would you rather drink a hot beverage from a metal cup or a ceramic cup
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I would personally drink a hot beverage from a ceramic cup than a metal cup for various reasons.
Firstly, ceramic cups do not change the taste of the beverage, while in some cases, metal cups do.
Secondly, since metal conducts heat, it would be wise to drink a hot beverage from a ceramic cup. Heated metal can burn your fingers if touched.
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Gold at 100.0°C is placed in 2.00×10^2 g of water at 20.0°C. The mixture reaches equilibrium at 21.2°C. the specific heat of gold is 0.129 (J/g°C) What is the mass of the gold? Specific heat of water is 4.18 (J/g°C) .
The National Grid supplied a house with 18,000,000 J of energy in 1 hour. What was the average current supplied to the house during that hour?
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(way 1) determine acceleration using force
only force act on skier is mg vertically. spilt vector we get force along the incline = mgsin(10) and f= ma so
ma = mgsin(10) or a = gsin(10)
a (along the incline)= gsin(10) = 10sin(10) = 1.74
v^2 = u^2 + 2as
15^2 = 3^2 + 2(1.74)s
s = 62.06 m
(way 2) using conservation of energy
energy (KE+PE) on top = energy at bottom
0.5m3^2 + mgh = 0.5m15^2 +0
h (height of incline) = (112.5 - 4.5)/10 = 19.8 m
length of incline = h/sin(10) = 62.2 m ; trigonometry
... find time
s = (u+v)t/2
t = 2s/(u+v) = 2(62.2)/(3+15) = 6.91 s
c. drawing
b. sketching
d. acting
Answers
Answer:
D
Explanation:
Right on edge2020
-amplitude
-polarization
-wavelength
Suppose two waves collide, and the temporary combined wave that results is smaller than the original waves. What term best describes this interaction?
-diffraction
-destructive interfernce
-standing wave formation
-constructive interfernce
The formation of a standing wave requires
-the traveling of a wave for a long distance
-constructive interference between two waves of slightly different frequencies
-that refraction and diffraction occur at the same time in a wave
-interference between incoming and reflected waves
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2) B-destructive interference
3)D -interference between incoming and reflective waves
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Answers
Its not a because Only coral and produce
Its not C because not all eat plants, some may eat meat like great white sharks
Its not D because not all of them are carnivores
It is B) Consumers because they all will consume *eat* another organism.
*plus im in k12- usatestprep, so i know*
the energy needed to split the nucleus into separate protons and neutrons
the energy needed to remove an electron from an atom
the energy needed to add an electron to an atom
Answers
Answer;
-The energy needed to split an atom into separate protons, neutrons, and electrons
Explanation;
E = mc² The equation is derived directly from Einstein’s Special Theory of Relativity .
Each of the letters of E = mc2 stands for a particular physical quantity. Writing them out in full we get:
Energy = mass × the speed of light squared
In other words: E = energy (measured in joules, J), m = mass (measured in kilograms, kg), c = the speed of light (measured in metres per second, ms-1), but this needs to be squared.
Explanation :
Einstein's equation is given by :
..............(1)
m is the mass
c is the speed of light
The energy needed to split an atom into separate protons, neutrons, and electrons can be calculated by using equation (1).
The energy needed to split the nucleus into separate protons and neutrons is called nuclear binding energy.
The energy needed to remove an electron from an atom is called ionization energy.
The energy needed to add an electron to an atom is called electron affinity.
So, the correct option is (A).