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
Naya [18.7K]
3 years ago
6

Which of the following factors determines the strength of the frictional force between two surfaces

Physics
1 answer:
Juli2301 [7.4K]3 years ago
6 0

Answer:

Explanation:

The strength of the force of friction depends on two factors: how hard the surfaces push together and the types of surfaces involved. What factors affect the gravitational force between two objects? Two factors affect the gravitational attraction between objects: mass and distance.

You might be interested in
A projectile is shot from the edge of a cliff above the ground level with initial velocity of at an angle with the horizontal. (
Xelga [282]

Answer:

t = √2y/g

Explanation:

This is a projectile launch exercise

a) The vertical velocity in the initial instants (v_{oy} = 0) zero, so let's use the equation

     y =v_{oy} t -1/2 g t²

     y= - ½ g t²

     t = √2y/g

b) Let's use this time and the horizontal displacement equation, because the constant horizontal velocity

     x = vox t

     x = v₀ₓ √2y/g

c) Speeds before touching the ground

     vₓ = vox = constant

     v_{y} = v_{oy} - gt

     v_{y} = 0 - g √2y/g

    v_{y}  = - √2gy

    tan θ = Vy / vx

    θ = tan⁻¹ (vy / vx)

    θ = tan⁻¹ (√2gy / vox)

d) The projectile is higher than the cliff because it is a horizontal launch

6 0
3 years ago
The swim bladder of a fish helps keep the fish from sinking by_______.
Slav-nsk [51]

Answer:

C. Increasing its buoyancy

6 0
3 years ago
Read 2 more answers
Please help me with this question...
vredina [299]
The answer is B (The second one). I'm not sure though.
3 0
3 years ago
You plug a string of 100 lights in series into a 120 V power outlet, and each light has a resistance of 3.00 _. If each light ha
UNO [17]
V = IR

By completing the equation, i found that the total power equation is : 4.8, 
Which means that it's not exceed the power rating.

So i believe the answer would be :  The string will remain lit

hope this helps
6 0
3 years ago
How did harlow shapley conclude that the sun was not in the center of the milky way galaxy?
timurjin [86]

We learned that We are in the disk of the Galaxy, about 5/8 of the way from the center.

<h3>What is the work of Harlow Shapley?</h3>

Shapley, who was headquartered in Boulder, Colorado, used Cepheid variable stars to estimate the size of the Milky Way Galaxy and its position relative to the Sun. In 1953, he published his "liquid water belt" theory, today known as the concept of a livable zone.

There are many stars, grains of dust, and gas in the Milky Way. It is known as a spiral galaxy because, from the top or bottom, it would appear to be whirling like a pinwheel. About 25,000 light-years from the galaxy's nucleus, the Sun is situated on one of the spiral arms.

Approximately 5/8 of the way from the galaxy's nucleus, we are in the disc. William Herschel believed that the Sun and Earth were about in the middle of the vast cluster of stars known as the Milky Way.

To learn more about Harlow Shapley's original estimate go to - brainly.com/question/28145909

#SPJ4

3 0
2 years ago
Other questions:
  • because the snow suddenly gets too slushy, you decide to carry your 100-newton sled the rest of the way home. How much workdo yo
    11·1 answer
  • Which have different numbers of electrons?
    14·1 answer
  • Define dry cell? Pls tell me ASAP!
    8·1 answer
  • What is the most likely radiological device that a terrorist might use in a Weapons of Mass Destruction (WMD) incident?
    5·1 answer
  • The illustration above depicts a spring being compressed and then released. Changes in both potential and kinetic energy occur d
    6·2 answers
  • The speed of an object and direction of its travel is?
    10·1 answer
  • Ships A and B leave port together. For the next two hours, ship A travels at 40.0 mph in a direction 35.0° west of north while t
    5·1 answer
  • A navigational beacon in deep space broadcasts at a radio frequency of 50 MHz. A spaceship approaches the beacon with a relative
    6·1 answer
  • If the speedometer of a car reads 5 mph, does it mean it is going at a constant speed?
    15·1 answer
  • Thirty-five coulombs of charge flow through a wire in 2 minutes. determine the current in the wire.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!