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
svetlana [45]
3 years ago
7

The pedals on a bicycle give a mechanical advantage by allowing you to turn the pedals a __________ distance to turn the _______

___ circumstance of the wheels.
A)long, larger
B)long, shorter C)short, larger
D)short, shorter
Physics
2 answers:
Butoxors [25]3 years ago
6 0
Letter c. Short, larger
Nata [24]3 years ago
6 0

Answer: C

Explanation:

The pedals on a bicycle give a mechanical advantage by allowing you to turn the pedals a short distance to turn the larger circumference of the wheels. short, larger

You might be interested in
A tectonic plate is part of the Earth’s lithospherehttp://brainly.com/question/add?entry=1642&task_content=A%20tectonic%20pl
lord [1]
Plate tectonics<span>is a </span>scientific theory<span> that describes the large-scale motion of </span>Earth<span>'s </span>lithosphere<span>. This theoretical model builds on the concept of </span>continental drift<span> which was developed during the first few decades of the 20th century. The </span>geoscientific<span> community accepted plate-tectonic theory after </span>seafloor spreading was validated in the late 1950s and early 1960s.<span>The lithosphere, which is the rigid outermost shell of a planet (the crust and upper mantle), is broken up into </span>tectonic plates<span>. </span>
3 0
3 years ago
For a damped simple harmonic oscillator, the block has a mass of 1.2 kg and the spring constant is 9.8 N/m. The damping force is
ArbitrLikvidat [17]

Answer:

a) t=24s

b) number of oscillations= 11

Explanation:

In case of a damped simple harmonic oscillator the equation of motion is

m(d²x/dt²)+b(dx/dt)+kx=0

Therefore on solving the above differential equation we get,

x(t)=A₀e^{\frac{-bt}{2m}}cos(w't+\phi)=A(t)cos(w't+\phi)

where A(t)=A₀e^{\frac{-bt}{2m}}

 A₀ is the amplitude at t=0 and

w' is the angular frequency of damped SHM, which is given by,

w'=\sqrt{\frac{k}{m}-\frac{b^{2}}{4m^{2}} }

Now coming to the problem,

Given: m=1.2 kg

           k=9.8 N/m

           b=210 g/s= 0.21 kg/s

           A₀=13 cm

a) A(t)=A₀/8

⇒A₀e^{\frac{-bt}{2m}} =A₀/8

⇒e^{\frac{bt}{2m}}=8

applying logarithm on both sides

⇒\frac{bt}{2m}=ln(8)

⇒t=\frac{2m*ln(8)}{b}

substituting the values

t=\frac{2*1.2*ln(8)}{0.21}=24s(approx)

b) w'=\sqrt{\frac{k}{m}-\frac{b^{2}}{4m^{2}} }

w'=\sqrt{\frac{9.8}{1.2}-\frac{0.21^{2}}{4*1.2^{2}}}=2.86s^{-1}

T'=\frac{2\pi}{w'}, where T' is time period of damped SHM

⇒T'=\frac{2\pi}{2.86}=2.2s

let n be number of oscillations made

then, nT'=t

⇒n=\frac{24}{2.2}=11(approx)

8 0
3 years ago
You are standing on the SCALE<br> The scale is on the floor.<br> What are the forces on the SCALE?
ehidna [41]

Answer:

The Normal and Gravitational Force

Explanation:

The normal force pushes up and is between the ground and the scale. The gravitational force is the force exerted on the ground.

3 0
3 years ago
Read 2 more answers
Which of the following electron configurations for neutral atoms is correct?
liq [111]
Nitrogen: 1s2, 2s2, 2p3 is correct answer.
6 0
3 years ago
Read 2 more answers
“instrucciones” para hacer los diagramas de Lewis de un compuesto iónico y luego para uno covalente. ¿En qué se diferencian y en
Mazyrski [523]

Answer:

- Se diferencian en que en los compuestos iónicos se ceden y aceptan electrones, mientras que en los covalentes de comparten.

- Se parecen en que los enlaces son formados por medio de los electrones de valencia y que en ambos compuestos la ley del octeto se debe cumplir.

Explanation:

¡Hola!

En este caso, debemos recordar que los compuestos iónicos se dan cuando se forman enlaces iónicos en los que el elemento más electronegativo tiene la capacidad de aceptar los electrones perdidos por el elemento menos electronegativo con el fin de cumplir la ley del octeto en la que 8 electrones deben ser exhibidos en la molécula. Por otro lado, los compuestos covalentes se forman cuando los átomos comparten sus electrones de valencia con el fin de alcanzar la ley del octeto.

De este modo encontramos que se diferencian en que en los compuestos iónicos se ceden y aceptan electrones, mientras que en los covalentes de comparten.

Por otro lado, ambos se parecen en que los enlaces son formados por medio de los electrones de valencia y que en ambos compuestos la ley del octeto se debe cumplir.

¡Saludos!

6 0
3 years ago
Other questions:
  • If 600 J work is done in 3s what is power?
    15·1 answer
  • A rock of mass m is twirled on a string in a horizontal plane. The work done by the tension in the string on the rock is:
    15·1 answer
  • As we increase the frequency of this light, but do not vary anything else (there may be more than one correct answer),
    13·1 answer
  • Instantaneous speed is measured
    14·1 answer
  • Find the momentum of a 25kg object traveling at a speed of 4m/s
    13·1 answer
  • The angle of deflection shows the amount of electric force on each balloon. A greater force causes the balloon to deflect to a g
    15·1 answer
  • The speed limit in a school zone is 25.mph what is the speed in m/s
    15·2 answers
  • As altitude increases in the troposphere and stratosphere, the air temperature
    10·1 answer
  • Scott travels north 3 Km and then goes west 3 Km before coming straight
    11·1 answer
  • What causes an object to slowdown or speed up
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!