(d) When a = 4 m/s (towards the ground) w m(g-a) = 50 (10 - 4) = 500- 200 = 300 N oun %3D The rope will not break. The re The l A ha Exercise 16.5 1. (a) State Newton's third law of motion. (b) Using examples, differentiate between action and reaction forces. 2. A driver jumps from a plane on an air cushion His speed is 24 m/s. The average force of the cushion on the body while he is being stopped is 9 400 N. If his mass is 70 kg, calculate the distance he will sink into the cushion. Im 3. A man standing in a lift holds a spring balanc with a load of 5 kg suspended from it. Wha is the reading on the spring if the lift descending with an acceleration of 3.8 m/s

(d) When a = 4 m/s (towards the ground) w m(g-a) = 50 (10 - 4) = 500- 200 = 300 N oun %3D The rope will not break. The re The l A ha Exercise 16.5 1. (a) State Newton's third law of motion. (b) Using examples, differentiate between action and reaction forces. 2. A driver jumps from a plane on an air cushion His speed is 24 m/s. The average force of the cushion on the body while he is being stopped is 9 400 N. If his mass is 70 kg, calculate the distance he will sink into the cushion. Im 3. A man standing in a lift holds a spring balanc with a load of 5 kg suspended from it. Wha is the reading on the spring if the lift descending with an acceleration of 3.8 m/s

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter3: Interference

Section: Chapter Questions

Problem 12CQ: An inventor notices that a soap bubble is dark at its thinnest and realizes that destructive...

See similar textbooks

Similar questions

Speculate as to s1at physical process might be responsible for light traveling more slowly in a medium than in a vacuum.
Check Your Understanding For the experiment in Example 4.2, at what angle from the center is the third maximum and what is its intensity relative to the central maximum?
Check Your Understanding In the system used in the preceding examples, at what angles are the first and the second bright fringes formed?
What image will one see if a hologram is recorded using monochromatic light but its image is viewed in white light? Explain.
If bis Brewster’s angle for light reflected from the top of an interface between two substances, and bis Brewster’s angle for light reflected from below, prove that b+b=90.0
If the light source in the preceding problem is changed, the angular position of the third maximum is found to be 0.57°. What is the wavelength of light being used now?
If a hologram is recorded using monochromatic light at one wavelength but its image is viewed at another wavelength, say 10% shorter, what will you see? What if it is viewed using light of exactly half the original wavelength?
When a wave passes from one medium to another, itsfrequenicy remaîns the same but its wavelength chanġes. Derive anexpression for the ratio of the wavelength in medium 1 to that inmedium 2 as a function of the indices of refraction of the two media(λ1/λ2=?)
During the Apollo XI Moon landing, a retroreflecting panelwas erected on the Moon’s surface. The speed of lightcan be found by measuring the time it takes a laser beamto travel from Earth, reflect from the panel, and return toEarth. If this interval is found to be 2.51 s, what is the measuredspeed of light? Take the center - to - center distancefrom Earth to the Moon to be 3.84 x 108 m. Assume theMoon is directly overhead and do not neglect the sizes ofEarth and the Moon.
Discuss the fragility of the film considering the thickness found.
what is polar optical phonon potential? what material does it arise?
If diffraction is observed for some phenomenon, it is evidence that the phenomenon is a wave. Does the reverse hold true? That Is, if diffraction is not observed, does that mean the phenomenon is not a wave?