b. blue, yellow, and white are primary colors.
c. they are complementary colors of light.
d. they are both primary colors of light.
Answer: The correct answer is c.
Explanation: According the RGB color model, the light of the two complementary colors will combine to form a white light. This happens because the complementary colors combine at full intensity.
Complementary colors according to RBG color model is:
From the above information, we conclude that blue light and yellow light are complementary colors of light and hence, the combination of two will produce white light.
Fourteen billion years represents the approximate age of Universe.
Explanation:
The age of the universe is that the time advance since the massive Bang. this measurement of the age of the universe.T he universe cannot be younger than the objects contained inside it. By deciding the ages of the oldest stars, scientists are ready to place a limit on the age.
The life cycle of a star relies on its mass. additional large stars burn quicker than their lower-mass siblings. A star ten times as large because the sun can burn through its fuel provide in twenty million years, whereas a star with 0.5 the sun's mass can last quite twenty billion years.
B. When scientist decide to change their theories and ideas in response to societal pressure.
C. Scientific knowledge does not change. Once and idea or theory is established it is permanent.
Answer:
b
Explanation:it is correct
How fast would Keesha say the ball is traveling toward her?
Answer:
B
Explanation:
Answer:
0.432kg or 432g
Explanation:
Copper block is removed from 310C oven.
Mass of water = 1.10kg
Initial temperature of water (θ1) = 23.0C
Final temperature of water (θ2 ) = 33.0C
Specific heat of copper= 385
Specific heat of water = 4190
Let M (copper) be the mass of copper
The amount of heat lost will be absorbed by water
Q (net) = Q(water) + Q(copper) = 0 …………………(1)
Q = MCθ
For water,
Q(water) = M(water) * C(water) * (θ2-θ1)...........(2)
= 1.1 * 4190 * (33.0 -23.0)
= 1.1 *4190 * 10
= 46090J
For copper,
Q(copper) = M(copper) * C(copper) * (33.0 - 310)...........(3)
from equation 1,
Q(copper) = -Q(water)
M(copper) * C(copper) * (33.0 - 310) = - 46090
M(copper) * 385 * (-277) = -46090
M(copper) * 106645 = -46090
M(copper) = -46090 / -106645
M(copper) = 0.432kg
M(copper) = 432g
The mass of copper =432g
The mass of the copper block is 3.69kg.
To find the mass of the copper block, we can use the equation q1 = q2. The heat gained by the water is given by q1 = mcΔT, where m is the mass of the water, c is the specific heat of water, and ΔT is the change in temperature. The heat lost by the copper block is given by q2 = mcΔT, where m is the mass of the copper block, c is the specific heat of copper, and ΔT is the change in temperature. Since the water reaches a final temperature of 33.0°C, the change in temperature is ΔT = 33.0°C - 23.0°C = 10.0°C.
Using the equation q1 = q2, we have mcΔT = mcΔT. Rearranging the equation to solve for the mass of the copper block, we get m = (m1c1ΔT2) / (c2ΔT1), where m1 is the mass of the water, c1 is the specific heat of water, ΔT2 is the change in temperature of the copper block, c2 is the specific heat of copper, and ΔT1 is the change in temperature of the water. Substituting the given values, we have m = (1.10kg * 4190 J/(kg?K) * 10.0°C) / (385 J/(kg?K) * 10.0°C), which simplifies to m = 3.69kg.
#SPJ11
The relative size of earth and moon are a little bit of close in astronomical world.One can find unique relationship between two planetary systems i.e the earth and moon.
In astrophysics the term binary planet system refers to two planets.Here both the planets are of planetary masses.Two planetary bodies will be considered as the binary system if their sizes are proportional to each other and comparable.
Moon is the one satellite in the entire solar system which is larger than other satellites.The weight of the earth is 81 times more than the weight of earth and it is just 384000 km away from earth .Ideally it can not be considered as binary planet system.But it is considered as a binary planet system as their relative size are so close.
Hence the answer of this question is binary planet system.