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
I am Lyosha [343]
3 years ago
12

Can someone help me with this question?¿

Physics
1 answer:
Rudik [331]3 years ago
7 0

The answer to your question is 'Yes'.  There is undoubtedly someone, perhaps a great number of individuals, any of whom can help you with the question in the picture you attached.

You might be interested in
Pnrjrjjrjrjrrmdmmdmdmdmdmdjd
Degger [83]

Answer:

why would you waste points

Explanation:

4 0
3 years ago
Read 2 more answers
NEED HELP QUICK PLZ! 51 Points!
Vesnalui [34]
Mechanical waves transfer energy by inducing vibrations in the propagation medium.
6 0
3 years ago
Read 2 more answers
X rays are used in hospital to locate in the patients bones.If the x rays of wavelength of 2×10 to the power negative nine m tra
jasenka [17]

Answer:1.5×10 to the power of 17(unit-Hertz/H)

Explanation:V=F×Wavelength

F=V/Wavelength=3×10 to power/2×10 to power of -9=1.5×10 to power of 17

8 0
3 years ago
Betty weighs 400 N and she is sitting on a playground swing seat that hangs 0.21 m above the ground. Tom pulls the swing back an
disa [49]

Answer:

4.15 m/s

Explanation:

As the total energy must be conserved (neglecting air resistance) the change in gravitational potential energy, must be equal to the change in kinetic energy:

ΔE = ΔK + ΔU =0

If we take as a zero reference level for the gravitational potential energy, the height of the swing seat above the ground, (which is equal to 0.21 m), we can find the initial gravitational energy, considering the height of the point where the seat is released, regarding this point:

h₀ = 1.09 m -0.21 m = 0.88 m

⇒ U₀ = m*g*h₀ = 400 N*0.88 m = 352 J

As Uf = 0, ΔU = Uf -U₀ = -352 J

As the swing starts from rest, K₀=0, so we can say:

ΔK = Kf = \frac{1}{2} *m*vf^{2}  (1)

As ΔK = -ΔU ⇒ ΔK = 352 J (2)

From (1) and (2) we can solve for vf, as follows:

vf = \sqrt{\frac{2*352J}{40.8kg}} = 4.15 m/s

So, when the swing passes through its lowest position, Betty moves at 4.15 m/s.

5 0
3 years ago
Explain how the thermal energy of a swimming pool compares to the thermal energy of a lake at the same temperature.
astra-53 [7]
There is more thermal energy in the lake because there is more water which is more thermal energy
3 0
3 years ago
Other questions:
  • An object of mass m slides down an incline with angle 0.
    6·2 answers
  • A car starts from rest and accelerates uniformly to a speed of 72 km per hour over a distance of 500m. calculate acceleration​
    15·1 answer
  • A capacitor is connected to a power source and begins charging.
    8·2 answers
  • At t=0, an object of mass m is at rest at x=0 on a horizontal, frictionless surface. A horizontal force Fx=F0 (1−t/T), which dec
    15·1 answer
  • Which part of the eye is used to see things in high detail?
    10·1 answer
  • Would you rather have no air conditioning or no heating? Explain your answer
    11·2 answers
  • Which of these is an example of electrical energy being converted to mechanical energy?
    7·1 answer
  • What is the gpe of a 200g ball that is 10m off the ground​
    8·1 answer
  • 1. A meter rule is found to balance at the 48cm mark. When a body of mass 60g is suspended at the 6cm mark the balance point is
    14·1 answer
  • Define a dipole. Hence, write the expression for calculating the electric moment of a dipole​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!