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
erik [133]
3 years ago
13

True or False? A model train traveling at a constant speed around a circular track has a constant velocity.

Physics
2 answers:
RSB [31]3 years ago
8 0
For both, remember that velocity is a vector force, meaning that it has both a magnitude and direction. Since direction is part of the vector, if the direction changes so does the velocity in general. The changing of velocity is acceleration, so for 1 the answer is False.
For 2 I'm not sure what you meant, but the answer is the acceleration changes but the velocity does not.
disa [49]3 years ago
8 0

1. false

2. accerlation and velocity

You might be interested in
Savanna regions developed during the Triassic period.
stich3 [128]
The answer is : true
5 0
1 year ago
If humans originated in Africa and migrated to other parts of the world some time would be required for this to occur.At the mod
Thepotemich [5.8K]

Answer:

100 years

Explanation:

10,000 divided by 100 equals 100

7 0
3 years ago
Help mee plss its very urgent i need this before 11 pm est
dmitriy555 [2]

Answer:

7. 2 kg

8. 0.5 kg

9. 4 kg

Explanation:

The equation is F=MA

where F is force in Newtons

M is mass in kg

A is acceleration in m/s^2

for each you substitute in the F and A, and you are finding M. Meaning you divide F by A.

M = F/A

6/3 = 2

6/12 = 0.5

20/5 = 4

6 0
3 years ago
Read 2 more answers
How do I convert 200 yards into meters using Dimensional Analysis? Explain thoroughly. Thanks!
shtirl [24]

Explanation:

When doing this calculation manually, the formula of conversion that you need to use is yd / 1.0936 = m and this is the same formula used by the online calculator. For instance, 2yd = 1.83m and 15yd = 13.72m.

So 200 yards is (200 / 1.0936)

which is 182.88 Meters

Hope it helps..

8 0
4 years ago
12. Which of the following accurately describes semiconductor diodes?
salantis [7]

Answer;

D. Junction diodes are preferred over point-contact diodes for most purposes.

Junction diodes are preferred over point-contact diodes for most purposes; accurately describes semiconductor diodes.

Explanation;

-Semiconductor diodes are specialized electronic components with two electrodes called the anode and the cathode, that are made with semiconductor materials such as silicon, germanium, or selenium.

-Point contact diode is formed by touching a metallic wire with an N-type semiconductor to form a small area of contact.

-A p-n junction diode is two-terminal or two-electrode semiconductor device, which allows the electric current in only one direction while blocks the electric current in opposite or reverse direction. Junction diodes are preferred over point-contact diodes for most purposes.

6 0
3 years ago
Other questions:
  • For an independent study project, you design an experiment to measure the speed of light. You propose to bounce laser light off
    15·1 answer
  • How do you close a ripped sandwhich bag?​
    14·1 answer
  • A 100-kg athlete is performing a vertical leap to test his leg strength. He leaves the ground at 3.20 m/s, zooms upward to some
    13·1 answer
  • Rosalinda’s take-home pay is 1700 a month she spends 11% of her take-home pay on her cable bill how much is Rosalinda’s monthly
    13·1 answer
  • What tools can you use for measuring mass?
    15·2 answers
  • Which stars are the youngest?
    12·1 answer
  • 4.5. During a snowball fight, your opponent distracts you by throwing a snowball at you with a high arc. She throws snowballs wi
    5·1 answer
  • What is Physics? How is Physics used in your everyday life? Give at least two examples and explain your answer. You need at leas
    12·1 answer
  • What is the cause of atmospheric pressure.​
    12·1 answer
  • Currents in dc transmission lines can be 100 A or higher. Some people are concerned that the electromagnetic fields from such li
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!