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
Arturiano [62]
3 years ago
10

PLEASE HURRY!

Physics
2 answers:
zloy xaker [14]3 years ago
8 0

PRETTY SURE ITS A AND C BUT I LOOKED IT UP AND IM ALMOST POSITIVE THARS IT

lisabon 2012 [21]3 years ago
6 0
I got A and C. This message isnt long enough so here- HAHAHAHHAAH
You might be interested in
The kinetic energy of an object increases as its ____ its potential energy
tankabanditka [31]
The kinetic energy of an object increases as its decreases <span>its potential energy as the sum of energy will remain constant.

In short, Your Answer would be "Decreases"

Hope this helps!</span>
8 0
3 years ago
Please answer I will give good rating and mark brainlest
lina2011 [118]
The answer is C. You must divide your wavelength and your frequency to get your answer.
8 0
3 years ago
block with of mass m is at rest on horizontal frictionless surface at time t=0. A force given by F=Bt+C is applied horizontally
Alexeev081 [22]

Answer:

v_{2} =\frac{1}{2}

Explanation:

From the second law of Newton movement laws, we have:

F=m*a, and we know that a is the acceleration, which definition is:

a=\frac{dv}{dt}, so:

F=m*\frac{dv}{dt}\\\frac{dv}{dt}=\frac{F}{m}=\frac{\frac{1}{2}(t+1)}{4}=\frac{t+1}{8}

The next step is separate variables and integrate (the limits are at this way because at t=0 the block was at rest (v=0):

dv=\frac{1}{8}(t+1)dt\\\int\limits^{v_{2}}_0 \, dv=\int\limits^{2}_{0} {\frac{1}{8}(t+1)} \, dt

v_{2}=\frac{1}{8}*(\frac{t^{2}}{2}+t) (This is the indefinite integral), the definite one is:

v_{2}=\frac{1}{8}*(2+2)=\frac{1}{2}

3 0
3 years ago
The speed of the ball when it returns to the same horizontal level
stellarik [79]

8.0 m/s if there is no air resistance. (B)

Less if there IS any air resistance.

4 0
3 years ago
Explain how friction keeps a nail in place in a block of wood. If you try pull out the nail which way does friction act?
Bess [88]

Answer:

Opposite to the direction that you are pulling

Explanation:

Static friction acts in the opposite direction to the acceleration.

Kinetic friction acts in the opposite direction to the velocity.

8 0
3 years ago
Other questions:
  • Which of the following illustrations show atoms of the same element?
    6·1 answer
  • A narrow beam of light containing red (660 nm) and blue (470 nm) wavelengths travels from air through a 2.60 cm thick flat piece
    13·1 answer
  • A straight vertical wire carries a current of 1.0 A into the page in a region where the magnetic field strength is 0.60 T. What
    7·1 answer
  • Drag each label to the correct location on the chart.
    6·2 answers
  • Pylon cables in the National Grid have some resistance. Power (watts) = Current2 (amperes) x Resistance (ohms) Looking at the po
    9·1 answer
  • A beam of protons moves in a circle of radius 0.20 m. The protons move perpendicular to a 0.36-T magnetic field. (a) What is the
    10·1 answer
  • 3. Forces do ________ always cause an object to move.<br> need this ASAP
    6·2 answers
  • (b) Complete the sentence about longitudinal
    11·1 answer
  • If you have a circuit consisting of 4 resistors in series and and the total voltage across them is 17v ,what is the voltage acro
    7·1 answer
  • 10
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!