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
Luba_88 [7]
3 years ago
15

Help please ASAP !!!

Physics
1 answer:
mezya [45]3 years ago
7 0
What’s the weight and how high is the clif
You might be interested in
If the energy of a photon is 1.32 × 10¯18 j, what is its wavelength in nm?
Katarina [22]
I think I remember hold on let me see if I can solve it
8 0
3 years ago
Read 2 more answers
Two bicycle tires are set rolling with the same initial speed of 3.30 m/s along a long, straight road, and the distance each tra
vredina [299]

Answer:

At low pressure- \mu_{k}=0.02315

At high pressure- \mu_{k}=0.00445

Explanation:

Initial speed, V_{i}=3.3 m/s

Final speed, V_{f}=3.3/2= 1.65 m/s

Net horizontal force due to rolling friction F_{net}=\mu_{k} mg where m is mass, g is acceleration due to gravity, \mu_{k} is coefficient of rolling friction

From kinematic relation, V_{f}^{2}- V_{i}^{2}=2ad

For each tire,

V_{f}^{2}- V_{i}^{2}=2\mu_{k}gd

Making \mu_{k} the subject

\mu_{k}=\frac {V_{f}^{2}- V_{i}^{2}}{2gd}

Under low pressure of 40 Psi, d=18 m

\mu_{k}=\frac {1.65^{2}- 3.3^{2}}{2*9.8*18}=-0.02315

Therefore, \mu_{k}=0.02315

At a pressure of 105 Psi, d=93.7

\mu_{k}=\frac {1.65^{2}- 3.3^{2}}{2*9.8*93.7}=-0.00445

Therefore, \mu_{k}=0.00445

4 0
3 years ago
Will the velocity of the book change as it moves across the surface with NO friction? Explain your answer.
MakcuM [25]

No velocity will not be changed

Why?

According to Newtons 1st law the velocity of a moving object remains unchanged unless a external force affect that.

6 0
3 years ago
Read 2 more answers
What will be the weight of a man of mass 90kg when he is on a planet with acceleration due to gravity of 15ms-2?
Feliz [49]

Answer:

1350N

Explanation:

Weight = Mass x Acceleration Due to Gravity

W=mg

W=90*15=1350N

7 0
4 years ago
PSYCHOLOGY. neurons communicate with each other through ____
Alex787 [66]

Answer:

B. Nueral Receptors

3 0
3 years ago
Other questions:
  • How fast is the car traveling if it has driven a total of 200 miles in 5.5 hours?
    11·1 answer
  • Aerobic exercise is exercise where oxygen is not present.
    8·1 answer
  • A car travels at a constant velocity of 70 mph for one hour. At the second hour, the car’s velocity was 60 mph. At the third hou
    13·2 answers
  • The diagram represents water waves travelling from deep water into an area of much shallower water.
    11·1 answer
  • Is Kepler's constant the same for moons orbiting a planet as it is for planets orbiting the sun? Why?
    11·2 answers
  • a horizontal force of 100N is required to push a crate across a factory floor at a constant speed. What is the net force acting
    8·1 answer
  • What is the frequency of radiation whose wavelength is 11.5 a0 ?
    12·1 answer
  • What happens to the amount of friction if you increase the mass of an object?
    5·2 answers
  • Which statement is correct about waves?
    14·1 answer
  • Do transistors amplfy a.c or d.c<br>​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!