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
Katen [24]
2 years ago
9

Since the coefficient of friction is less than 1, what does that mean about the normal force and the force of friction?

Physics
1 answer:
ludmilkaskok [199]2 years ago
7 0

Answer:

there is friction between the two things

Explanation:

You might be interested in
A swimmer is capable of swimming at 1.4m/s in still water. a. How far downstream will he land if he swims directly across a 180m
ozzi

Answer:

t = 180 / 1.4 = 129 sec   (time to swim horizontally across river)

S = 129 sec * V     where V is speed of current and S is the distance he will be carried downstream

The problem does not specify V the speed of the river

8 0
3 years ago
Read 2 more answers
Sally and Susie are astronauts. They went outside the space station to fix something.
rodikova [14]

Answer:

Because sound doesn't move in vacuum (of space)

8 0
3 years ago
A 6 kilogram block in outer space is moving at -100 m/s (to the left). It suddenly experiences three forces as shown below (in t
Blizzard [7]

Answer:

x = 1474.9 [m]

Explanation:

To solve this problem we must use Newton's second law, which tells us that the sum of forces must be equal to the product of mass by acceleration.

We must understand that when forces are applied on the body, they tend to slow the body down to stop it.

So as the body continues to move to the left, it is slowing down. Therefore we must calculate this deceleration value using Newton's second law. We must perform a sum of forces on the x-axis equal to the product of mass by acceleration. With leftward movement as negative and rightward forces as positive.

ΣF = m*a

10 +12*sin(60)= - 6*a\\a = - 3.39[m/s^{2}]

Now using the following equation of kinematics, we can calculate the distance of the block, before stopping completely. The initial speed must be 100 [m/s].

v_{f}^{2} =v_{o}^{2}-2*a*x

where:

Vf = final velocity = 0 (the block stops)

Vo = initial velocity = 100 [m/s]

a = - 3.39 [m/s²]

x = displacement [m]

0 = 100^{2}-2*3.39*x\\x=\frac{10000}{2*3.39}\\x=1474.9[m]

4 0
3 years ago
The Cosmo Clock 21 Ferris wheel in Yokohama, Japan, has a diameter of 100 m. Its name comes from its 60 arms, each of which can
Sonja [21]

Answer:

Explanation:

a ) speed of passenger = circumference / time

= 2π R / Time

= 2 x 3.14 x 50 / 60

= 5.23 m /s

b )

centrifugal force = m v² /R

= (882 /9.8 ) x 5.23² / 50

= 77.47 N

Apparent weight at the highest point

real weight  - centrifugal force

= 882 - 77.47

= 804.53 N

Apparent weight at the lowest point

real weight  + centrifugal force

= 882 +77.47

= 959.47 N

c )  if the passenger’s apparent weight at the highest point were zero

centrifugal force = weight

mv² /R = mg

v² = gR

= 9.8 X 50

v = 22.13 m /s

d )

apparent weight

mg - mv² / R

= 882 - (882 / 9.8 )x 22.13²/50

= 882 +  882

= 1764 N  

=

6 0
3 years ago
Which of these events is an example of resonance?
vodka [1.7K]
An opera singer breaks a thin glass with only the use of her high frequency voice
8 0
3 years ago
Read 2 more answers
Other questions:
  • A metal disk of radius 4.0 cm is mounted on a frictionless axle. Current can flow through the axle out along the disk, to a slid
    9·1 answer
  • Two alternate exterior angles are formed by a transversal through two parallel lines. If one of these alternate exterior angles
    5·1 answer
  • The amount of force needed to sustain motion of a rock in outer space is
    14·1 answer
  • What are the advantages of parallel circuits? Check all that apply
    11·2 answers
  • If y gets smaller as x gets bigger, x and y have a?
    12·2 answers
  • An object is 9.00 cm tall. The image is 5.76 cm tall, and 14 cm
    5·1 answer
  • A stone is thrown vertically upward from the top of a platform with an initial velocity of 10m/s. Calculate the height of the pl
    10·1 answer
  • A box is at rest at the top of a frictionless inclined plane. As the box slides down the ramp where along the ramp would the box
    7·1 answer
  • Emotional elevation only occurs in animal kin groups. please select the best answer from the choices provided t f
    12·2 answers
  • In the metaphor of the bottle for theory of constraints, which part of the bottle represents the constraint?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!