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
nordsb [41]
3 years ago
8

How does the direction of friction relate to the direction of motion

Physics
1 answer:
lesya692 [45]3 years ago
5 0
 <span>It reacts to the </span>motion<span>. If the mass hanging from the pulley was overwhelmingly heavier than the mass on the ramp, it'll obviously pull the ramp mass up and thus </span>friction<span> would be trying to oppose this and vice versa. </span>
You might be interested in
The Event Horizon Telescope needs a 22 micro-arcsecond resolution to view the event horizon regions around black holes. If the a
likoan [24]

Answer:

14869817.395 m

Explanation:

\theta=22 microarcsecond

λ = Wavelength = 1.3 mm

Converting to radians we get

22\times 10^{-6}\frac{\pi}{180\times 3600}\ radians

From Rayleigh Criterion

\theta=1.22\frac{\lambda}{D}\\\Rightarrow D=1.22\frac{\lambda}{\theta}\\\Rightarrow D=1.22\frac{1.3\times 10^{-3}}{22\times 10^{-6}\frac{\pi}{180\times 3600}}\\\Rightarrow D=14869817.395\ m

Diameter of the effective primary objective is 14869817.395 m

It is not possible to build one telescope with a diameter of 14869817.395 m. But, we need this type of telescope. So, astronomers use an array of radio telescopes to achieve a virtual diameter in order to observe objects that are the size of supermassive black hole's event horizon.

7 0
3 years ago
Please help me with this for science
finlep [7]

Answer:Force is to the right

Explanation: because the right side has 75N compared to the 25N on the left.

5 0
3 years ago
"Giant Swing", the seat is connected to two cables as shown in the figure (Figure 1) , one of which is horizontal. The seat swin
Bingel [31]
The horizontal force is m*v²/Lh, where m is the total mass. The vertical force is the total weight (233 + 840)N. 

<span>Fx = [(233 + 840)/g]*v²/7.5 </span>

<span>v = 32.3*2*π*7.5/60 m/s = 25.37 m/s </span>

<span>The horizontal component of force from the cables is Th + Ti*sin40º and the vertical component of force from the cable is Ta*cos40º </span>

<span>Thh horizontal and vertical forces must balance each other. First the vertical components: </span>

<span>233 + 840 = Ti*cos40º </span>

<span>solve for Ti. (This is the answer to the part b) </span>

<span>Horizontally </span>

<span>[(233 + 840)/g]*v²/7.5 = Th + Ti*sin40º </span>

<span>Solve for Th </span>

<span>Th = [(233 + 840)/g]*v²/7.5 - Ti*sin40º </span>

<span>using v and Ti computed above.</span>
3 0
3 years ago
150J of heat energy
arsen [322]

Btu/(lb-°F) J/(g-°C i mean this is the correct answer

6 0
2 years ago
Read 2 more answers
Research shows that Mount Everest Grows an Average of 4 millimeters each year. How many will it take to grow 720 millimeters.?
maria [59]
Time = 720 / 4 =180years
7 0
3 years ago
Read 2 more answers
Other questions:
  • The interference pattern seen when light passes through narrow, closely spaced slits, is due to
    11·1 answer
  • Compute the resistance in ohms of a silver block 10 cm long and 0.10 cm2 in cross-sectional area. ( = 1.63 x 10-6 ohm-cm)
    13·1 answer
  • The sun is going down and most of the land is dark but we still can see silhouettes and outlines of objects because some light i
    8·2 answers
  • Select all the answers that apply. Scientists think past changes in climate have been caused by _____.
    14·1 answer
  • Can you check this and tell me if I anything wrong
    9·1 answer
  • Energy is the capacity to do what ? motion or work
    14·1 answer
  • What is the time lapse between seeing a lightning strike and hearing the thunder if the lightning flash is 47 km away? The speed
    7·1 answer
  • Marco was looking at this picture of two boats sitting differently in the water. He decided to compare the way the two boats sit
    10·1 answer
  • Does the buoyant force on a submerged object depend on the volume of the object or on the weight of the object?.
    11·1 answer
  • Which equation can be used to calculate the normal force on an object if you know the speed of the object, the coefficient of ki
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!