An empty semi-truck sits on the scale of a weighing station. it is then loaded with 100 irritated pigeons. these two events then happen in sequence. a) first, the super irritated pigeons just stand on the floor of the truck. b) second, they take flight inside the truck. they all fly in the enclosed space such that they do not collide with each other or the walls/ceiling/floor. is the reading on the scale different in a) versus b)? does the reading on the scale change during the transition of these events?
Solved
Show answers
More tips
- F Family and Home How to Get Rid of Your Neighbors?...
- S Society and Politics How Could Nobody Know About the Dead Mountaineers?...
- H Health and Medicine How to Cure Adenoids?...
- H Health and Medicine Why Wearing a Back Brace Can Be Beneficial During Back Strain?...
- S Sport When and Where Will the 2014 World Cup be Held?...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- C Computers and Internet How to Learn to Type Fast?...
Answers on questions: Physics
- P Physics Jennifer hits a stationary 0.04-kg ball, and it leaves her racket at 41.3 m/s. Time-lapse photography shows that the ball was in contact with the racket for 26.5 ms. What...
- P Physics A train that is 268.7 m long undergoes constant acceleration the moment the last car (end of the train) is outside of the station, how far is the front of the train from...
- P Physics If we decrease our the time it takes for a car to travel over the same distance this will a. increase speed b. have no effect on velocity or speed c. decrease the speed...
- P Physics In some states the highway patrol uses planes carrying radar devices to monitor traffic. as the plane files over traffic, the radar device can tell the officers how fast...
- P Physics Define heat, sound, light and potential energy. can i get a short definition for each energy and i need the answer now . by the way, the subject i want to choose was science...
- P Physics Would it be possible for a small man running fast to have the same kinetic energy as a large man who runs slowly?...
- E English Which likely had the greatest influence on Whittier s opinions about slavery?...
- M Mathematics NEED HELP ASAP, I WILL GIVE BRAINLIEST Which diagram shows the parallelogram method for vector addition?...
- M Mathematics PLEASE I NEED HELP ASAP!! Ignore the answer I already put......
- M Mathematics Please help and show work...
Ответ:
The reading in the scale is going to be the same, or if it experiences some change it would be minimum. The reason is because the truck will act as a big closed cage, therefore, when the pigeons fly, the air they move with their wings in order to keep flying, exerts the same force on the closed cage, that if they were standing on the ground.
If the truck however, allows the air flow, the weight might change, because under this scenario, the air flowing could represent less force exerted on the balance.
Explanation:
Ответ:
magnetic force is 1.56 ×
N
Explanation:
given data
length = 1.5 m
current I = 6.4 A
angle = 38.0 degrees
earth magnetic field = 5.5 x 10^-5 T
to find out
magnetic force
solution
we know the magnetic force formula that is
magnetic force = E × I × L × sin(θ) ..................1
here E =earth magnetic field
and I = current
and L = Length and (θ) is angle
so put all value here in equation 1
magnetic force = 5.5 x 10^-5 × 1.5 × 6.4 × sin(38)
magnetic force = 0.000156
magnetic force is 1.56 ×
N