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
Karo-lina-s [1.5K]
2 years ago
11

8. Il An 8.00 kg package in a mail-sorting room slides 2.00 m down a

Physics
1 answer:
Vitek1552 [10]2 years ago
3 0

Answer:

See below

Explanation:

Normal force = m g cos 53 = 8 kg * 9.8 m/s^2 * cos 53 = 47.1823 N

  no work is done by this force

Force friction = coeff friction * force normal = .4 * 47.1823 = 7.55 N

   work of friction = 7.55 * 2 m = 15.1 j

Force Downplane = mg sin 53 = 62.61  N

    work = 62.61 * 2 = 125.22 j

Net Force downplane =   force downplane - force friction = 55.06 N

net Work = force * distance = 55.06 N * 2 M = 110.12 j

You might be interested in
Meclanical Energy
miss Akunina [59]

Answer:

a jet flying through the air making a paper airplane

7 0
3 years ago
A penguin slides at a constant velocity of 3.57 m/s down an icy incline. The incline slopes above the horizontal at an angle of
igomit [66]

Answer:t=0.81 s

Explanation:

Given

Penguin slides down with constant velocity of 3.57 m/s

as the Penguin Slides with constant velocity therefore F_{net} is zero on Penguin

F_{net}=mg\sin \theta -f_r

f_r=friction Force

f_r=\mu mg

\mu =coefficient of Kinetic friction

mg\sin \theta =\mu mg

\tan \theta =\mu

\mu =\tan 9.85=0.45

after reaching on floor final velocity of penguin will be zero after time t

thus

v=u+at

here a=\mu g

a=0.45\times 9.8=4.41  (deceleration)

0=3.57-4.41\times t

t=\frac{3.57}{4.41}=0.809

t=0.81 s

8 0
3 years ago
An object moves with a constant speed of 20 m/s on a circular track of radius 100 m. What is the tangential acceleration of the
MissTica

Answer:4s^-1

Explanation:Tangential Acceleration=v^2/r=(20)²/100=400/100

4 0
2 years ago
In the reaction C + O2 → CO2, 18 g of carbon react with oxygen to produce 72 g of carbon dioxide. What mass of oxygen would be n
Mazyrski [523]

Answer:

54 g of oxygen ...

4 0
2 years ago
PLEWSE SOMEONE HELP ILL MARK BRAINLIST
Margaret [11]

Answer:

D)

Explanation:

ffhjjxghjjcdddhhgfd

Brainliest pls ❤️

3 0
2 years ago
Read 2 more answers
Other questions:
  • Pasar 26 Segundos a Horas
    8·1 answer
  • Two students walk in the same direction along a straight path, at a constant speedâone at 0.90 m/s and the other at 1.90 m/s.
    5·1 answer
  • Mixtures occur when two or more materials are combined and each material keeps its own properties. All of the following are mixt
    11·2 answers
  • Describe the gases that are emitting from a volcanic eruption. What affect do they have on the atmosphere and planet?
    5·1 answer
  • Atmospheric pressure changes ____.
    15·2 answers
  • How many nanoseconds does it take light to travel 2.50 feet in a vacuum
    15·1 answer
  • Katie designed an experiment to show a water cycle process. The steps of the experiment are shown below.
    13·1 answer
  • A charged capacitor with C = 780 μF is connected in parallel to an inductor that has L = 0.290 H and negligible resistance. At a
    10·1 answer
  • The asteroid belt circles the sun between the orbits of Mars and Jupiter. One asteroid has a period of 5.4 earth years.
    11·1 answer
  • Pushing a baby on a swing is easier than pushing an adult on the same swing.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!