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
Mekhanik [1.2K]
3 years ago
14

Dona rolls a marble with a speed of 5.0/m/s across a level table that is 1.6m above the floor. Upon reaching the edge of the tab

le it follows a parabolic path to the floor . How far does the marble travel in the x direction
Physics
1 answer:
san4es73 [151]3 years ago
5 0

Answer:

2.9 m

Explanation:

First find the time it takes to reach the floor.

y = y₀ + v₀ t + ½ at²

(0 m) = (1.6 m) + (0 m/s) t + ½ (-9.8 m/s²) t²

t = 0.571 s

Next, find the distance it travels in that time.

x = x₀ + v₀ t + ½ at²

x = (0 m) + (5.0 m/s) (0.571 s) + ½ (0 m/s²) (0.571 s)²

x = 2.86 m

Rounded to two significant figures, the marble travels 2.9 meters in the x direction.

You might be interested in
Why it is advise to clean the ends of connecting wires before connecting them?
Svetradugi [14.3K]
If dirt and grease were good conductors of electrical current, then we could make wire
out of dirt and grease instead of expensive copper.  Sadly, they're not. So a coating of
dirt and grease on the wire can have a substantial impact on the connection, and can
even block the flow of current across the connection completely.  Moreover, in the case
where the ends of the wires are to be soldered, solder does not adhere to dirty wire.
5 0
3 years ago
Read 2 more answers
A loaded barge has a mass of 1 500 000 kg and is traveling at 3 m/s. If a tugboat applies an opposing force of 12 000 N for 10 s
yan [13]

Answer:

Explanation:

Initial momentum is 1.5e6(3) = 4.5e6 kg•m/s

An impulse results in a change of momentum

The tug applied impulse is 12000(10) = 120000 N•s or 0.12e6 kg•m/s

The remaining momentum is 4.5e6 - 0.12e6 =  4.38e6 kg•m/s

The barge velocity is now 4.38e6 / 1.5e6 = 2.92 m/s

The tug applies 0.012e6 N•s of impulse each second.

The initial barge momentum will be zero in

t = 4.5e6 / 0.012e6 = 375 s or 6 minutes and 15 seconds

To stop the barge in one minute(60 s), the tug would have to apply

4.5e6 / 60 = 75000 N•s /s or 75 000 N

5 0
2 years ago
Kayla draws the image shown as part of her physical science homework.
AnnZ [28]
What the question for this assessment
8 0
2 years ago
Help me with this???
Vikentia [17]

Yo sup??

Average velocity=total distance covered/total time taken

total distance covered=4 + 8=12 miles

total time taken=6 hours

Therefore

average velocity=12/6

=2 miles/hour

Hope this helps

8 0
3 years ago
46. Nuclear generating plants use the potential
nydimaria [60]

Answer:

nuclear battery to generate energy

4 0
3 years ago
Other questions:
  • Pions have a half-life of 1.8 x 10^-8 s. A pion beam leaves an accelerator at a speed of 0.8c. What is the expected distance ove
    10·1 answer
  • Explain the difference between temperature and heat also state what determines the direction
    15·2 answers
  • What is the usual time ice takes to evaporate above a Bunsen burner?
    13·1 answer
  • 1) What describes the unusually large release of plasma from the sun's corona?
    12·1 answer
  • Suppose you want to move a big rock in your yard. It is about waist high and 4 feet long, has a volume of 1.2 m3 and a density o
    9·1 answer
  • The source of heat for a (an) _____ system is electricity
    7·1 answer
  • The longest cave system in the world is the
    7·2 answers
  • g Two planets are in circular orbits around a star of with unknown mass. One planet is orbiting at a distance r1=150×106 km and
    5·2 answers
  • An object is placed at 1.5 m from a convex lens with a focal length of 1.0 m.
    8·1 answer
  • A periodic wave of frequency f and speed v travel what distance in one period?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!