Answer:
The light ray is reflected back into the opposite direction
Explanation:
The law of reflection states that when a light ray hits a reflecting surface, the angle of reflection (measured between the reflected ray and the normal to the surface) is equal to the angle of incidence (measured between the incident ray and the normal to the surface).
In this case, we have a light ray that it is incident along the normal to the surface: this means that the angle of incidence is . As per the law of reflection, the angle of reflection must be the same: . This means that the reflected ray is also along the normal, just in the opposite direction to that of the incident ray.
1. condensation
2. freezing
3. gas particles
4. moth balls
5. leave liquid
6. reacting
7. state of matter
8. sublimation
______________________________
1. temperature
2. increasing heat
3. its temperature begins rising from -20 C
4. it stops rising and stays steady at 0 C; the ice is using the
added heat to change state, melt, and turn to liquid
5. between 0 C and 100 C
6. it stops rising and stays steady at 100 C; it's being absorbed
by the water, and the water is using it to change state, evaporate,
and turn to gas
7. the heat is making the molecules move around easier
Answer:
The horizontal velocity is constant at 16 m/s.
After 1 sec since v = a t then 9.8 m/s^2 * 1 sec = 9.8 m/s for the vertical velocity
V = (Vx^2 + Vy^2)^1/2 = (16^2 + 9.8^2)^1/2 = 18.8 m/s
Explanation:
Momentum = mass × velocity
p = mv
p = (1000 kg) (14 m/s)
p = 14000 kg m/s
Answer:
v = 3.135 m/s
Explanation:
given,
mass of car = 2.1 x 10³ Kg
length of driveway = 5.1 m
angle on inclination, θ = 17°
frictional force, f = 4.0 ✕ 10³ N
The force from the newton's second law
The speed of the car
v = 3.135 m/s
Speed of the car at the bottom of the driveway, v = 3.135 m/s