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makkiz [27]
3 years ago
6

Is it possible to apply the same amount of force and do different amounts of work?

Physics
1 answer:
Tamiku [17]3 years ago
5 0
Yes, with simple machines
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Suppose a soccer player kicks the ball from a distance 29 m toward the goal. find the initial speed of the ball if it just passe
Rudik [331]

The ball's vertical velocity at the time it just passes over the goal is 0 m/s. Its initial vertical velocity is unknown and we denote it by v\sin39^\circ, where v here is the ball's initial speed. Vertically, the only force acting on the ball is gravity, which attributes a downward acceleration of 9.8 m/s^2. We expect the maximum height achieved by the ball to be 2.4 m, so we can find the initial speed by solving

\left(0\,\dfrac{\mathrm m}{\mathrm s}\right)^2-\left(v\sin39^\circ\right)^2=2\left(-9.8\,\dfrac{\mathrm m}{\mathrm s^2}\right)(2.4\,\mathrm m)

\implies v=11\,\dfrac{\mathrm m}{\mathrm s}

6 0
3 years ago
What are the differently types of motion in a bicycle?
Ksivusya [100]
The two types of motion exerted in bicycle are:
1. rotary motion
2. linear motion
7 0
3 years ago
The free length of the spring that is attached to the 0.3-lb slider is 3 in. If the slider is released from rest when x = 6 in.,
hichkok12 [17]

Answer:

a = 64 ft / s²

Explanation:

The force in a spring is given by Hooke's law

          F = -k x

Let's use the initial data to calculate the spring constant

         k = F / x

Reduscate to the English system

          x = 3 in (1foot/12 in) =0.25 foot

         k = 0.3 / 0.25

         k = 1.2  lb / foot

Now we can use Newton's second law

        F = ma

        a = F / m

        a = -k x / m

        m = w / g

        m = 0.3 / 32 = 0.009375

         x= 6 in (1foot /12 in)= 0.5 foot

        a = - 1.2  0.5  / 0.009375

        a = 64 ft / s²

5 0
3 years ago
5 ejemplos de ondas mecánicas PORFAVOR!!
kupik [55]

Answer: Una onda de sonido es un ejemplo de onda mecánica. Las ondas sonoras son incapaces de viajar a través del vacío. Las ondas furtivas, las ondas del agua, las ondas de los estadios y las ondas para saltar la cuerda son otros ejemplos de ondas mecánicas; cada uno requiere algún medio para existir.

English Translation: A sound wave is an example of a mechanical wave. Sound waves are incapable of traveling through a vacuum. Slinky waves, water waves, stadium waves, and jump rope waves are other examples of mechanical waves; each requires some medium in order to exist.

Explanation:

6 0
2 years ago
How many shots does one get when he fouls a shooter? (basketball)
Tamiku [17]

Answer:

Depends on where he was fouled

If it is beyond the 3 pt line, then it is 3

If it is within the 2 pt line, then it is 2

I hope that helps :)

Explanation:

Plz mark B R A I N L I E S T

4 0
3 years ago
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