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
marin [14]
2 years ago
5

Một xe xuất phát lúc 9 giờ 30 phút , chuyển dộng thẳng đều từ A đến B với vận tốc 40 km/h

Physics
1 answer:
OLEGan [10]2 years ago
3 0
HUHHHHHHHHHHHHHHHHHHHHH????????
You might be interested in
a student pushes a box with a total mass of 50kg. what is the net force on the box if it accelerates 1.5 m/s^2?
Zielflug [23.3K]
F=mass times acceleration so multiple 50 by 1.5 and u get 75

5 0
3 years ago
When the position of the mass is farthest from the equilibrium position, what is the velocity of the mass?
Llana [10]
At the most distant point, the size of the speed is zero (0 m/s). This is a direct result of preservation of vitality. PE = KE. The most distant far from the harmony position is the maximum PE. Hence it can have no KE. No KE implies no speed since KE = .5mv2
5 0
3 years ago
How do hydrogen bonds affect boiling points?
Yuri [45]

Boiling points are raised by hydrogen bonds because they make different molecules desire to "attach" to one another, which requires more energy to do so. In water, for instance, the hydrogen proton is in a state that resembles ionization because the connections between oxygen and hydrogen, while covalent, are strongly polar. The oxygen also receives a partial negative charge. Therefore, hydrogen bonds are formed when the electro-positive H in one molecule is strongly electrostatically attracted to the electro-negative O in nearby molecules. Despite being weak links, they are powerful enough to significantly alter the liquid's characteristics.  

Thanks!

>> ROR

8 0
2 years ago
According to the rayleigh criterion, what is the shortest object we could resolve at the 25.0 cm near point with light of wavele
Blizzard [7]

Answer:

6.71 *10^{-5} rad

Explanation:

∅ = \frac{1.22*wavelength}{D} = \frac{1.22*550 * 10^{-9} }{25 * 10^{-2} }

∅ = 6.71 *10^{-5} rad

The minimum resolvable angle = 6.71 *10^{-5} rad

7 0
3 years ago
What is the wavelength of a wave if its frequency is 256 Hz and speed of the wave is 350 m/s?
DiKsa [7]

Answer:

Explanation:

The equation for this is

f=\frac{v}{\lambda} where f is the frequency, v is the velocity, and lambda is the wavelength. Filling in:

256=\frac{350}{\lambda} and

\lambda=\frac{350}{256} which means that

the wavelength is 1.37 m, rounded to the correct number of significant digits.

7 0
3 years ago
Other questions:
  • Which of the following is the best thermal insulator?
    5·2 answers
  • In the summer of 2010 a huge piece of ice roughly four times the area of Manhattan and 500 m thick caved off the Greenland mainl
    8·1 answer
  • Identical +7.67 μC charges are fixed to adjacent corners of a square. What charge (magnitude and algebraic sign) should be fixed
    15·1 answer
  • When it reaches an altitude of 3600 m, where the temperature is 5.0∘C and the pressure only 0.68 atm, how will its volume compar
    9·1 answer
  • How does a wave start​
    11·1 answer
  • A force acting on an object does no work if
    6·2 answers
  • You are considering developing a new food-chopping appliance which uses an Arduino with a touchscreen to control the motor. You
    10·1 answer
  • Container A and container B hold samples of the same ideal gas. The volume and the pressure of container A is equal to the volum
    8·1 answer
  • There are several ways to model a compound. One type of model is shown.
    13·2 answers
  • Physics part 1 <br><br> I need help answering these
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!