1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Shkiper50 [21]
2 years ago
6

Thomas the Tank Engine (a train) is going 80 m/s and slows down to 30 m/s over a period of 30s. What is his deceleration? Accele

ration= (final velocity-initial velocity)/ time A. -1.67 m/s/s B. 0.67 m/s/s C. -50 m/s/s D. 50 m/s/s
Physics
1 answer:
sleet_krkn [62]2 years ago
7 0

Answer: D

Explanation:

You might be interested in
At a rock concert, the sound intensity 1.0 m in front of the bank of loudspeakers is 0.10 W/m2. A fan is 30 m from the loudspeak
aliina [53]

Explanation:

Below is an attachment containing the solution.

5 0
3 years ago
Question 1 (1 point)
IrinaK [193]
  1.  momentum  
  2. Yes, if the elephant is standing still.
  3. Fullback  
  4. impulse acting on it.  
  5. 2.25 N∙s
  6. A cannon firing.
  7. Inelastic  
  8. it stays the same
  9. When the cue ball contacts the other balls, momentum is transferred causing them to gain momentum and speed.
  10. less than 3 m/s      
<h3><u><em>these are all correct i got an 100%</em></u><em><u> </u></em></h3>
8 0
3 years ago
The unusually bright centers found in some galaxies are called ______.
Nimfa-mama [501]
<span>Active Galactic Nuclei.</span>
4 0
3 years ago
Bob has been Springfield's top meteorologist for ten years. He received data from satellite imaging and computer models that a h
djyliett [7]
The correct letter of the answer would be letter b, Bob is using his personal knowledge of the local area to make his forecast. It does not look like he's ignoring the computer for he's been the top meteorologist for ten years, meaning to say, he would use his knowledge about the local area and tell them his knowledge about the weather.
7 0
3 years ago
Read 2 more answers
What is the instantaneous speed at 5 seconds? (remember s=d/t)
TEA [102]
5 seconds is a poor time to ask about, because the speed abruptly changes at exactly 5 seconds.

Up until that time, the speed has been 1 m/s. And then, at exactly 5 seconds, it becomes zero.
_________

It's also a poor question because speed is calculated from the distance covered, but the graph shows displacement, not distance. You can't really tell the distance covered from a displacement graph. For example, if an object happens to be moving in a circle around the place where it started, then the total distance covered keeps increasing, but its displacement is constant.
4 0
3 years ago
Read 2 more answers
Other questions:
  • 1. Which areas of physics deal with the following?
    13·2 answers
  • What must be the acceleration of a train in order for it to stop from 12m/s in a distance of 541m?
    13·2 answers
  • Rasheed runs a football 10 meters east, turns and runs the football 6 meters west. If his velocity during this run is found to b
    9·2 answers
  • considere que o calor específico de um material presente nas cinzas seja c=0,8j/gc. Supondo que esse material entre na turbina a
    7·1 answer
  • Light rays in a material with index of refraction 1.31 can undergo total internal reflection when they strike the interface with
    9·1 answer
  • What does addition of two vectors give you?
    7·1 answer
  • A school bus traveling at 11.1 m/s has a momentum of 152625 kg*m/s what is the mass of the bus
    8·1 answer
  • If you know the answer please answer the following question down in the picture below.
    9·1 answer
  • PLEASE ANSWER IF YOU CAN AND NOT FOR THE SAKE OF GAINING POINTS!
    11·1 answer
  • Ice is put in a cooler to cool the contents. to speed up the cooling process, the ice can be?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!