Answer:
(b) 32.2°
Explanation:
Using Snell's law as:
Where,
is the angle of incidence ( 30.0° )
is the angle of refraction ( ? )
is the refractive index of the refraction medium (Material B, n=5 / 4)
is the refractive index of the incidence medium (Material A, n=4 / 3)
Hence,
Angle of refraction =
= 32.2°
Another example of sportsmanship is playing equally with other opponents and treated appropriately.
Water freezes at zero degrees Celsius (32 degrees Fahrenheit). The solid ice particles absorb heat energy from the warmer air, giving the particles energy and enabling them to move away from one another. ... This is what happens when the ice cube (a solid) turns into water (a liquid)
Answer:
Terminal velocity is achieved, therefore, when the speed of a moving object is no longer increasing or decreasing; the object's acceleration (or deceleration) is zero.
Explanation:
hope it helps you
Answer:
42 minutes
Explanation:
First, let us find out the time required by the roommate, who is driving the truck, to reach the city.
We know that,

Now, you are planning to rest a bit after traveling for an hour. So,
distance covered in that 1 hour = 
time required by you to cover the total distance = 
If you wish reach at the destination half an hour (0.5 h) before your roommate, you can expend a total of
throughout your journey.
Hence, you can rest for 