Answer:d
Explanation:
because the brighter the stars look the bigger they look
250m good luck onnur test
Answer:
Vp = velocity of plane
Vpx = Vp cos 55 = 8 * .57 = 4.59 m/s velocity of plane along x-axis
Vpy = Vp sin 55 = 8 * .82 = 6.55 m/s velocity of plane along y-axis
If Wx = -3 m/s then
Vx = 4.59 - 3 = 1.59 m/s
Vy = 6.55 m/s wind does not affect vertical speed
tan theta = Vy / Vx = 6.55 / 1,59 = 4.12
theta = 76.4 deg above x-axis
V = (1.59^2 + 6.55^2)^1/2 = 6.74 m/s
Answer:
32 seconds
Explanation:
Time is equals to distance divided by speed, so, time is inversely proportional to speed that means as the speed increases the time taken by the sprinter decreases.
Here, Speed is given which is 10 meters per second
Distance is 320 meters
By putting the values of speed and distance in the formula of time we will get the answer of time taken by the sprinter which is 32 seconds.
Answer:
Refracted rays travel through a boundary into a new medium.
Explanation:
Refracted rays travel through a boundary into a new medium. is only true for refraction.
The angle of incidence is the same for angle of refraction, is not true for refraction. Refraction follows Snell's law, states that ratio of the sine of the angle of refraction and the sine of the angle of incidence is always constant and equivalent to the ratio of phase velocities of the two mediums it is passing through.
Refracted rays change direction and go back to the original medium is false for refraction however, it is true for reflection.