All categories

3 years ago

Question below in photos!!(there are 2 photos) Please answer! Will mark BRAINLIEST! ⬇⬇⬇⬇⬇⬇⬇

Physics

1 answer:

Angelina_Jolie [31]3 years ago

6 0

Ok so the first answer is reflected and the second answer is absorbed.
So the correct sentence would be “When light strikes a green opaque object, the green wavelength of light is reflected while all other wavelengths of visible light are absorbed.”
This is because an object that is a certain color, like green, reflects that color of wavelength and absorbs all the other wavelengths. This is what allows us to see things in different colors. I hope this helps!

You might be interested in

Lemonade is best described as _______. A. an element B. a compound C. a mixture D. a pure substance

Minchanka [31]

C is the answer because it mix and water combining together

7 0

3 years ago

Read 2 more answers

the acceleration due to gravity on earth is 9.80 m/s2. if the mass of a giraffe is 1,470 kg, what is the weight of the giraffe?

Brrunno [24]

Weight = Mass * gravity

= 1470* 9.8 = 14406 N ≈ 14,400 N

5 0

2 years ago

Read 2 more answers

The range of human hearing is roughly from twenty hertz to twentykilohertz. Based on these limits and a value of 305 m/s for the

AnnyKZ [126]

Answer:

1. $L_s=0.0076\ m$

2. $L_l=7.62\ m$

Explanation:

Given that

f₁= 20 Hz

f₂= 20 KHz

C= 305 m/s

For open pie organ :

$L=\dfrac{C}{2f}$

Shortest length :

$L_s=\dfrac{C}{2f_2}$

$L_s=\dfrac{305}{2\times 20000}$

$L_s=0.0076\ m$

Longest length : 

$L_l=\dfrac{C}{2f_1}$

$L_l=\dfrac{305}{2\times 20}$

$L_l=7.62\ m$

7 0

3 years ago

A car travels 20km West and then 20 km South. What is the magnitude of it's displacement vector

Ludmilka [50]

c. 28.km
11. Cartesian Coordinates.
X Y
S -3.5 4.5
T 0 -6.5
U 3.5 -2.5
what is angle of resultant vector STU measuring from positive x axis.
24 degrees below x

12. Cartesian Coordinates
Cartesian Coordinates.
X Y
S -3.5 4.5
T 0 -6.5
U 3.5 -2.5
what is magnitude of resultant vector STU
a. 4.9 b. 24 c. 16. d. 18
Seems right option is not there. The right one will be 7./2 ie 9.9

6 0

3 years ago

a tiger moving with constant accleration covers the distance between two points 70 meter apart in 7 seconds . its speed as it pa

makvit [3.9K]

Answer:

a = 1.428 [m/s²]

v₀ = 5 [m/s]

Explanation:

To solve this problem we must use the following equation of kinematics.

$x=x_{o}+v_{o}*t+\frac{1}{2}*a*t^{2}$

where:

x = final point [m]

x₀ = initial point [m]

v₀ = initial velocity [m/s]

a = acceleration [m/s²]

t = time [s]

But we need to use this additional equation.

$v_{f}=v_{o}+a*t$

where:

vf = final velocity = 15 [m/s]

Now we can use this equation, replacing it, in the first one. We must bear in mind that the difference among x - x₀ is equal to 70 [m]

$x-x_{o}=v_{o}*t+\frac{1}{2}*a*t^{2} \\x-x_{o}=(v_{f}-a*t)*t+\frac{1}{2} *a*t^{2}\\70=(15-a*t)*t+\frac{1}{2}*a*t^{2}\\70=15*t-a*t^{2} +\frac{1}{2}*a*t^{2} \\70=15*t-\frac{1}{2}*a*t^{2}\\70=15*(7)-\frac{1}{2} *a*(7)^{2}\\105-70=0.5*a*49\\35=24.5*a\\a=1.428[m/s^{2} ]$

Now replacing this value in the second equation, we can find the initial velocity.

$15=v_{o}+1.428*7\\v_{o}=5[m/s]$

3 0

3 years ago