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
WINSTONCH [101]
2 years ago
6

A 2kg ball is rolled along the floor for 0.8 m at a constant speed of 6 m/s. What is the work done by gravity?

Physics
2 answers:
riadik2000 [5.3K]2 years ago
3 0

=F×s×cosa=2×g×0,8×cos90°= 0

natulia [17]2 years ago
3 0

Answer:

work done=force×distance

=(2×10)×0.8

=16J

I hope this helps

You might be interested in
Four wires meet at a junction. In two of the wires, currents and enter the junction. In one of the wires, current leaves the jun
Vera_Pavlovna [14]

Answer:

Explanation:

Kirchoff's current law: It states that the total current entering at a junction is equal to the total current leaving at the junction. It isbased on conservation of charge.  

As two current i1 and i2 is entering at the junction and i3 is leaving, so the current in forth wire is

i4 = i1 + i2 - i3

4 0
2 years ago
Problem 2: (15 pts) A 10-m high cylindrical container is half-filled at the bottom with water of density =1000 kg/m3 while the t
Step2247 [10]

Answer:

\Delta p = 90.7 kPa

Explanation:

specific gravity of oil is = \frac{\rho_{oil}}{\rho_w}

\rho_{oil} = 0.85*1000 = 850 kg/m3

we know that

change in pressure  for oil is given as

\Delta p = \rho gh

here density and h is for oil

\Delta p = 850*5 *9.81 = 41,692.5 kPa

change in pressure  for WATER is given as

\Delta p = \rho gh

here density is for water and h is for water

\Delta p = 1000*5 *9.81 = 49,050 kPa

pressure change due to both is given as

\Delta p = 41692.3 + 49050 = 90742.5 N/m2

\Delta p = 90.7 kPa

8 0
2 years ago
Read 2 more answers
Parker wound a wire around a large iron nail. He then created an electromagnet by connecting the ends of the wire to different b
padilas [110]
The correct option is C.
From the information given above, one can easily conclude that electromagnetic Y is the strongest because, it produces the higher amount of current compare to the other electromagnets. Electromagnet W is the weakest because it produces the lowest amount of current. 
3 0
2 years ago
Read 2 more answers
Ruthford's theory was identified by
8090 [49]

Answer:

your mom

Explanation:

6 0
3 years ago
Read 2 more answers
The diagram below shows a food web.
Mekhanik [1.2K]
i think it’s B. sorry if i’m wrong
8 0
2 years ago
Read 2 more answers
Other questions:
  • A wave on the ocean has a wavelength of 200 m, the wave is a deep-water wave __________. only if the water is deeper than 200 m
    9·1 answer
  • 5. Your friend tosses a ball into the air. The equation h = -5ť + 30t +10 models the height,
    12·1 answer
  • A ball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. If the ball hits the floor with a speed of
    7·1 answer
  • Is it possible for a stationary object to have a single force acting not it? If your answer is yes, provide and example. If your
    10·2 answers
  • What is 1/2 / 1/4. Please help am getting two answers.idk the correct one.​
    7·1 answer
  • What is kelvin?(scientifically plz)
    10·1 answer
  • Which of the following is true regarding mixtures? a. One substance not combined with any other substances. b. Two or more subst
    15·1 answer
  • Why do we break up angled forces into components? How does that help us solve force problems?
    14·1 answer
  • A child kicks a ball horizontally with a speed of 2.8 m/s from the end of a deck that is 8.5 m high.
    14·1 answer
  • Question is in the pic
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!