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
Rudiy27
3 years ago
11

a train has an initial velocity of 30 m/s. If the train accelerates uniformly at a rate of 6.3 m/s ^ for 2.8 seconds what is the

trains final velocity?
Physics
1 answer:
Annette [7]3 years ago
3 0

T

Answer:

the velocity is a second final to initial velocity of 39

You might be interested in
. A toy rocket has a mass of 350 g at launch. The force it produces
nydimaria [60]

Answer:

the acceleration is reduced by gravity

a = (15 / .35) - [9.8 * sin(65º)]

Explanation:

break the launch vector into two components, vertical and horizontal

Force Net Vertical=-9.8*.350+15cos65 N

force net horizonal=15sin65

initial acceleration= force/mass= (-9.8+15/.350*cos65)j+(15/.350*sin65)i

using i,j vectors..

5 0
3 years ago
State examples of a transverse wave. ​
laiz [17]

ripples on the surface of water.

vibrations in a guitar string.

a Mexican wave in a sports stadium.

electromagnetic waves – eg light waves, microwaves, radio waves.

seismic S-waves.

6 0
3 years ago
Read 2 more answers
Transformer is used in rectifier step up and step down voltage?<br>​
tensa zangetsu [6.8K]

Answer:

While the use of the type of transformer in a rectifier depends on the voltage requirement or to meet desired operating conditions, a step-down transformer is used mainly to reduce the voltage. It is used to bring the high AC voltage level to a reasonable value or the desired output voltage.

Explanation:

Hope it helps

Correct me if Im wrong

3 0
2 years ago
In your own words, explain how the red shift in the spectrum of objects in space provide evidence for the Big Bang Theory.
kondaur [170]
The evidence that the universe is expanding comes with something called the red shift<span> of light. Light travels to Earth from other galaxies. As the light from that galaxy gets closer to Earth, the distance between Earth and the galaxy increases, which causes the wavelength of that light to get longer.</span>
6 0
3 years ago
Read 2 more answers
Một tải có điện trở R = 19ohm đấu vào nguồn điện một chiều có E = 100V,
klio [65]

Answer:

Hindi ko alma yam among twang yan

Explanation:

aorry

6 0
3 years ago
Other questions:
  • Free electrons may be transferred between bodies by:
    13·2 answers
  • A rotating fan completes 1200 revolutions every minute. consider the tip of a blade, at a radius of 0.19 m. through what distanc
    11·1 answer
  • What measurement can be used to determine the stability of the atmosphere?
    7·1 answer
  • A metal tool is sharpened by being held against the rim of a wheel on a grinding machine by a force of 180 N. The frictional for
    13·1 answer
  • The rotating nozzle sprays a large circular area and turns with the constant angular rate theta overscript dot endscripts = 2.2
    6·1 answer
  • A lamp draws a current of 0.50 A when it is connected to a 120 V source? What is the resistance of the lamp?
    7·2 answers
  • What is another name for the heat-trapping gases
    7·1 answer
  • The transverse motion of a star can be determined by studying its spectrum. TRUE or FALSE
    14·1 answer
  • The final stages of a star's life depend on its mas. true or false?​
    9·1 answer
  • A metal sphere is neutral because it has an equal number of protons and electrons. Draw how the charges in the sphere are redist
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!