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
Anna35 [415]
3 years ago
6

Can anybody help me solve this problem? Thank you so much!

Physics
1 answer:
ser-zykov [4K]3 years ago
4 0
Please ignore my comment -- mass is not needed, here is how to solve it. pls do the math

at bottom box has only kinetic energy
ke = (1/2)mv^2
v = initial velocity
moving up until rest work done = Fs
F = kinetic fiction force = uN = umg x cos(a)
s = distance travel = h/sin(a)
h = height at top
a = slope angle
u = kinetic fiction
work = Fs = umgh x cot(a)
ke = work (use all ke to do work)
(1/2)mv^2 = umgh x cot(a)
u = (1/2)v^2 x tan (a) / gh
You might be interested in
Which energy conversion correctly describes what happens when you are dancing
geniusboy [140]
Kinetic because u are moving around a lot!
6 0
3 years ago
Which metal in Period 5 is very reactive and has two valence electrons in each atom?
iren2701 [21]
The answer is Strontium(Sr)
8 0
3 years ago
A clamp-type measuring instrument operates on the principle of
Hitman42 [59]

<em>A clamp-type measuring instrument operates on the principle of; </em>

A. induction

8 0
3 years ago
Witch of the following is not an appropriate unit for power
erica [24]

There are no appropriate units for power on the list you provided

6 0
3 years ago
20 points come an get it ppl! :D Pretend you are an electron in a copper wire which is being used to connect a battery to a flas
zaharov [31]
Batteries always use direct current. That eliminates A and C. The other part of the answers is just asking what direct/alternating means. Alternating currents change directions moving one way then another. Direct current only moves in one direction. Therefore, the answer is D, since the current is direct and direct currents move in one direction.
6 0
3 years ago
Other questions:
  • What questions should be considered when evaluating the reliability of a website?
    5·2 answers
  • Based on Newton’s prism experiments, what is sunlight made of?
    10·2 answers
  • Un pez llamado PARGO ROJO vive a grandes profundidades. Si se pesca, al salir a la superficie puede tomar el aspecto de la foto
    7·1 answer
  • What part of an atom is responsible for producing magnetic fields
    8·1 answer
  • PLEASE HELP!!!!!!! MY HOMEWORK IS DUE TODAY !!!!!!!!
    12·1 answer
  • What amount of force is needed to propel and object of 27 kg to an acceleration of 11,550 m/s^2?
    7·1 answer
  • Sports managers have the potential to earn more than a million dollars per year.<br> True<br> false
    9·1 answer
  • The diagram above shows the process of natural selection. What is X?
    12·2 answers
  • H. If the mass of an object is 390 g and its volume is 50 cm?, then its density is ....... g/cm' or ....... kg/m”.
    15·1 answer
  • An ideal gas undergoes an adiabatic expansion, a process in which no heat flows into or out of the gas. As a result, (a) the tem
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!