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
marta [7]
2 years ago
5

I need help please, thank you!!!

Physics
1 answer:
stiks02 [169]2 years ago
4 0

Answer:

135 mph

because 7+9=16

8 is left

if 7=40

9=50

then 8=45

add 40+50+45mph

=135

You might be interested in
What is the difference between a solar cell and a solar panel
dexar [7]

Solar cells and solar panels are both integral, and closely related, parts of a solar energy system. When reading about solar energy systems, it may seem as if these titles are almost interchangeable. Writers refer to them both when discussing energy production and output, and often do so without explanation of how these parts work. However, each plays a distinct role. Solar cells contain all the parts necessary to convert sunlight to electricity. Solar panels combine and direct all of that energy output.

5 0
3 years ago
Which method can be used for separating a mixture of sand and salt?
Veronika [31]
Answers A and C can be automatically eliminated because evaporation has to do with the water cycle and magnetism has to do with electric current and such. Next we can eliminate B or distillation because it also has to do with water/liquids. Therefore, the answer is D or filtration because it is the only answer left.

I hope this helps!
6 0
3 years ago
Read 2 more answers
A stretched string has a mass per unit length of 5.40 g/cm and a tension of 17.5 N. A sinusoidal wave on this string has an ampl
kondaur [170]

Answer:

Part a)

y_m = 0.157 mm

part b)

k = 101.8 rad/m

Part c)

\omega = 579.3 rad/s

Part d)

here since wave is moving in negative direction so the sign of \omega must be positive

Explanation:

As we know that the speed of wave in string is given by

v = \sqrt{\frac{T}{m/L}}

so we have

T = 17.5 N

m/L = 5.4 g/cm = 0.54 kg/m

now we have

v = \sqrt{\frac{17.5}{0.54}}

v = 5.69 m/s

now we have

Part a)

y_m = amplitude of wave

y_m = 0.157 mm

part b)

k = \frac{\omega}{v}

here we know that

\omega = 2\pi f

\omega = 2\pi(92.2) = 579.3 rad/s

so we  have

k = \frac{579.3}{5.69}

k = 101.8 rad/m

Part c)

\omega = 579.3 rad/s

Part d)

here since wave is moving in negative direction so the sign of \omega must be positive

4 0
3 years ago
Which statement about subatomic particles is not true?
Tresset [83]

Answer:

 B. is the right answer

7 0
3 years ago
Read 2 more answers
What are some evidences of early peoples concern for teeth
Alexandra [31]
Replacement teeth were made even back then out of primitive materials, and pig hair was used like floss
7 0
3 years ago
Other questions:
  • Blank objects is a major cause of back injuries in the workplace
    11·1 answer
  • Which of these units is most appropriate to use when measuring the mass of a person?
    12·2 answers
  • Give an example of a reputable website
    14·2 answers
  • (a) Find the acceleration of B.<br>(b) Find the tensions, T1 and T2, in the strings.
    10·1 answer
  • The orbital velocity of the Earth about the sun is 30 km/s. If the Earth were suddenly stopped in its tracks, it would simply fa
    9·1 answer
  • Physics Help Please:
    12·2 answers
  • If you are pushing on a box with a force of 20 N and there is a 7 N force on the box due to sliding friction, what is the net fo
    15·2 answers
  • Where does crystallization take place?
    13·1 answer
  • La energía cinética es la energía que presentan los cuerpos que se encuentran en movimiento.
    12·1 answer
  • Which would require the greater energy; slowing down of the orbital speed of the Earth so it crashes into the sun, or speeding u
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!