Answer to the fourth one is :
7.7mph
explanation: the total distance covered by the runner(26.2mile) divide by the total time required to finish the race
answer to the 5th one:
49.6mi/h (approximately 50mi/h)
explanation: total distance divide by total time
Answer:
The angle is degrees.
Explanation:
Se the attached drawing if you need a visual aid for the explanation. Let be the angle of elevation of the plante which in itself is the same drop angle that the pilot measures. Let be the horizontal distance from the target and the height of the plane. We know that the package is dropped without any initial vertical speed, that means that it has a y-position equation of the form:
If we set we are setting the condition that the package is in the ground. We can then solve for t and get the flight time of the package.
.
If the flight time is - then the distance b can be found in meters by taking into account that the horizontal speed of the plane is .
The angle is thus
degrees.
Answer:
7.35m/s
Explanation:
Kinetic energy = 1/2 MV^2
From the question
Kinetic energy = 6.8x10^3J
Mass = 225kg
V =?
Using the above formula
We have
6.8x10^3 = 1/2 x 225 x v^2
6.8x10^3 = 112.5 x v^2
Divide both sides by 112.5
We have
6.8x10^3 / 112.5 = v^2
v ^2 = 54.04
V = squared root of 54.04
v = 7.35m/s
Answer:
transverse wave, motion in which all points on a wave oscillate along paths at right angles to the direction of the wave's advance. Surface ripples on water, seismic S (secondary) waves, and electromagnetic (e.g., radio and light) waves are examples of transverse waves.