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rosijanka [135]
3 years ago
14

When an object reflects all the light waves that strike it looks white or black?

Physics
1 answer:
egoroff_w [7]3 years ago
3 0
Light waves can be from any color, depends on what it is bouncing no or reflecting off of.
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Must new substances be formed when you observe a chemical property? Explain
castortr0y [4]
Yes. It is rather a natural phenomenon. If you search and understand the process of chemical change or reaction that results to its chemical property outcome, it has a new formed substance. Unlike physical change or reaction it only changes in shape or form but the substance, compound or element in the matter is till the same. Furthermore, when chemical change is undergoing you notice the change in shape, size and from like the physical change but there is a change in the element, compound or substance. When you lit a fire on a paper the fire disorients, disorganizes and disturb the former positions of the atoms and because of the fire as catalyzer the atoms did its behavior –changing both intrinsic and extrinsic.



5 0
3 years ago
A ball is hurled straight up at a speed of 15 m/s, leaving the hand of the thrower 2.00 m above the ground. Compute the times an
SVETLANKA909090 [29]

Answer:

5.37 m/s

0.98 seconds

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity

s = Displacement

a = Acceleration due to gravity = 9.81 m/s²

v^2-u^2=2as\\\Rightarrow v=\sqrt{2as+u^2}\\\Rightarrow v=\sqrt{2\times -9.81\times 10+15^2}\\\Rightarrow v=5.37\ m/s

Velocity of the ball when it passes an observer sitting at a window is 5.37 m/s

v=u+at\\\Rightarrow t=\frac{v-u}{a}\\\Rightarrow t=\frac{5.37-15}{-9.81}\\\Rightarrow t=0.98\ s

Time taken by the ball to pass the observer sitting at a window is 0.98 seconds

3 0
3 years ago
Compared to yellow light, orange light has
pychu [463]
C. a longer wavelength; if you look at the electro magnetic spectrum of light you will see why
5 0
3 years ago
Read 2 more answers
You and your bicycle have combined mass 80.0 kg. When you reach the base of a bridge, you are travelling along the road at 7.50
Sonja [21]

We have that K.E and work done is

  • K.E=-1890J
  • W=2186J

From the Question we are told that

mass= 80.0 kg

Velocity= 7.50 m/s.

vertical distance of 5.20 m

Slowed to 3.00 m/s.

Generally the equation for Kinetic energy   is mathematically given as

K.E=\frac{mv^2}{2}-\frac{mv^2}{2}\\\\K.E=\frac{80*3^2}{2}-\frac{80*7.5^2}{2}

K.E=-1890J

B)

P.E=mgh\\\\P.E=80*9.8*5.2\\\\P.E=4076

Therefore

W=4076-1890J

W=2186J

For more information on this visit

brainly.com/question/12669551?referrer=searchResults

4 0
3 years ago
Oak trees make many acorns that can become new oak trees what is this an example of
Kisachek [45]
Reproduction! hope this helps u.
4 0
3 years ago
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