What causes light to bend when it moves from one transparent medium to another?a change in amplitude
a change in color
a change in frequency
a change in speed
Answers
Answer:
A change in speed
Explanation:
Light bends when it moves at a particular angle into a medium that has a different refractive index than the one it was coming from.
This bending is as a result of the change in speed of light as it enters the medium with a different refractive index.
This action is known as Refraction of light.
Refraction depends on the change in speed of light as it changes media and the angle of refraction depends on the angle of incidence of the ray of light and the refractive index of the material.
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If a ball was thrown upward at 46.3 m/s how long would the ball stay in the air
A piece of a newly synthesized material of mass 25.0 g at 80.0◦C is placed in a calorimeter containing 100.0 g of water at 20.0◦C. If the final temperature of the system is 24.0◦C, what is the specific heat capacity of this new material? 1. 1.20 J/g ◦C 2. 7.46 J/g ◦C 3. 4.76 J/g ◦C 4. 0.30 J/g ◦C 5. 0.84 J/g ◦C
What is less dense region of a compression wave
B) 20 N/m
C) 12 N/m
D) 25 N/m
E) 390 N/m
Answers
Answer: The spring constant is K=392.4N/m
Explanation:
According to hook's law the applied force F will be directly proportional to the extension e produced provided the spring is not distorted
The force F=ke
Where k=spring constant
e= Extention produced
h=2m
Given that
e=20cm to meter 20/100= 0.2m
m=100g to kg m=100/1000= 0.1kg
But F=mg
Ignoring air resistance
assuming g=9.81m/s²
Since the compression causes the plastic ball to poses potential energy hence energy stored in the spring
E=1/2ke²=mgh
Substituting our values to find k
First we make k subject of formula
k=2mgh/e²
k=2*0.1*9.81*2/0.1²
K=3.921/0.01
K=392.4N/m
Answers
Answer:
The answer to your question is: v = 121.46 m/s
Explanation:
Data
h = 30 m
vo = ?
dx = 300 m
Formula
t =
speed = distance / time
Process
t= 2.47 s
speed = 300 / 2.47
speed = v = 121.46 m/s
magnet
B. The north pole of one magnet is far away from the north pole of
the other magnet.
C. The north pole of one magnet is far away from the south pole of
the other magnet.
D. The south pole of one magnet is near the south pole of the other
magnet
Answers
destructive
negligible
interference is not involved in the creation of beats
Answers
Answer: constructive
Explanation:
Two waves having slightly different frequencies when interfere constructively produce beats. Superposition of these two waves results in addition of amplitudes of the two waves. The amplitude of the resultant wave vibrates or beats.
Beat frequency is given by the absolute difference between the frequencies of the two waves.
b = |f₂ - f₁| = f₂ - f₁ or f₂ + f₁
Answers
The correct answer is: +5
Explanation:
An object is placed at 0; it means:
Initial position of the object = 0.
Now it moves to 3 units to right, so keeping the standard cartesian coordinate system in mind (in right right x-axis is positive and left x-axis is right), the new position of the object will be +3.
Object now moves 4 units to the left, it means +3 - 4 = -1; object is at the position -1.
Object then moves 6 units to the right, therefore,
Final position of the object = -1 + 6 = +5.
Displacement = Final position - Initial position
Displacement = +5 - 0 = +5
Answer:
Explanation:
The correct answer is: +5
Explanation:
An object is placed at 0; it means:
Initial position of the object = 0.
Now it moves to 3 units to right, so keeping the standard cartesian coordinate system in mind (in right right x-axis is positive and left x-axis is right), the new position of the object will be +3.
Object now moves 4 units to the left, it means +3 - 4 = -1; object is at the position -1.
Object then moves 6 units to the right, therefore,
Final position of the object = -1 + 6 = +5.
Displacement = Final position - Initial position
Displacement = +5 - 0 = +5
Read more on Brainly.com - brainly.com/question/847612#readmore
Answers
The baby has nice coordination and fine motor control.
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