The tide was high because of the sun just now coming up at noon it when the sun begins to settle causing the ocean to form at low tide .
Answer:
25 feet
Explanation:
Car brakes must stop a car moving at 20m/h within 25 feet
Answer:
V = L A = L pi R^2 volume of wire
V = 50 cm * .01 cm^2 = .5 cm^3
d(density) = 3.5 gm / .5 cm^3 = 7.0 gm/cm^3
A micrometer caliper could measure the diameter of the wire.
Answer:
Average velocity is 0.296 m/s.
Average speed is 4.0 m/s.
Explanation:
Given:
Distance of the circular track is,
Number of laps ran is,
Time taken for the run is,
Now, total distance covered in 5.4 laps =
Also, since the path is a circle, the final position of the athlete after 5.4 laps will be 0.4 of 400 m ahead of the starting point.
Distance covered in 0.4 laps is,
Therefore, the displacement of the athlete will be 160 m as the athlete is 160 m ahead of the starting point and displacement depends on the initial and final points only.
Now, average velocity is given as:
Average speed is the ratio of total distance covered to total time taken.
So, average speed =
A supersonic speed has a Mach number ranging from 1.2 to 5. Supersonic speed tells us that an object's rate of travel is faster than the speed of sound. The Mach number is a dimensionless ratio between velocity and the local speed of sound for an incompressible flow in liquids and gases. It is determined by the equation M = u/c where u is the local flow velocity and c is speed of sound in the medium.