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
ElenaW [278]
3 years ago
15

A dockworker loading crates on a ship finds that a 25-kg crate, initially at rest on a horizontal surface, requires a 72-N horiz

ontal force to set it in motion. However, after the crate is in motion, a horizontal force of 55 N is required to keep it moving with a constant speed. Find the coefficients of static and kinetic friction between crate and floor.
Physics
1 answer:
Gnom [1K]3 years ago
7 0

Answer:

Explanation:

Force of static friction = μs x mg

Given force of static friction = 72 N

μs x mg = 72

μs = 72 / mg

= 72 / 25 x 9.8

= .294

Force of kinetic  friction = μk x mg

Given force of kinetic  friction = 55

μk x mg = 55

μk = 55 / mg

= 55 / 25 x 9.8

= .2245

You might be interested in
Blood type is an example of a trait that's inherited by
kow [346]
I think the answer is B.
7 0
3 years ago
Read 2 more answers
Rank the ten objects from loudest to softest.
frez [133]
Um what are the ten objects..?
5 0
3 years ago
Force multiplied by distance equals what
kenny6666 [7]

Answer:

Torque

Explanation:

Torque is defined as Force*distance, in units mN.

8 0
3 years ago
Can you name three dangers to the environment that some people use everyday in their homes without realizing it?
konstantin123 [22]

Answer:

1 COSMETICS WITH MICROBEADS

2 COFFEE CAPSULES

3 WET WIPES

Explanation:

1.Plastic microbeads began to be introduced in cosmetics, toiletries and cleaning products in the 1970s, but it wasn’t until the 1990s that brands began to incorporate them in a massive way. Toothpastes, creams, lotions, shampoos and detergents began to include microbeads as the great innovation of the time for achieving an abrasive effect, replacing the nature-based materials in use until then.

2 Capsule coffee machines have revolutionized the breakfasts of millions of people, offering a convenient and practical option for preparing an espresso or latte with the same quality one finds in a café. Data from 2017 indicate that 29% of US coffee consumers use these machines, a figure that continues to grow.

3They started off being an invaluable aid for fathers and mothers when facing the messy moment of their baby’s diaper change, but soon they began to be reinvented as deodorants, cleansers, disinfectants and hand soap substitutes, and even as toilet paper for adults. Wet wipes have become a common item in many homes, but with a dramatic consequence: they help to create fatbergs, immense accumulations that block the sewerage networks and that are composed of 93% non-degradable wipes, together with fat, condoms and other similar items thrown into the toilet.

3 0
3 years ago
Would you expect to observe every supernova in our own Galaxy? Why or why not?
Taya2010 [7]

Explanation:

Only few supernova are observed in our galaxy -

Type II supernovae ( i.e. the explosions of the massive stars ) occurred in the Milky Way, and they might be hidden by the intervening dust if they are located in the more distant parts of our Galaxy .

Type Ia supernovae , which need a white dwarf star in the binary star system , are brighter than the type II supernovae , but some of them could also happen in the older parts of Galaxy which are hidden due to the buildup of the dust and gas .

3 0
3 years ago
Other questions:
  • What are the formulas to calculate acceleration
    10·2 answers
  • Michael threw a football and it traveled for 8 seconds at a velocity of 3 meters per second. How far did the football travel?
    6·1 answer
  • C is wrong ( currently failing ) Please Help
    6·2 answers
  • A meter stick is free to rotate about an axis through one of its end. Find the force F needed to balance this meter stick if the
    5·1 answer
  • Which of these factors is pushing elephant species toward extinction?
    14·2 answers
  • Figure 2 shows the junction of three wires, F, G and H, in a circuit. The current in wire F is 6.0A.
    5·1 answer
  • Label each of the following as either an acid (A) or base (B)
    12·1 answer
  • Where is kinetic energy at its greatest
    14·1 answer
  • 4. Mr. G has found two rocks which he needs to classify. Classify both rocks correctly based on the knowledge stated below
    14·1 answer
  • Which organ system do blood cells and blood vessels belong to
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!