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pentagon [3]
3 years ago
14

How have physicists played a role in history?

Physics
1 answer:
diamong [38]3 years ago
3 0
A. Physics has changed the course of the world.
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Compare and contrast the two different types of mechanical waves?
prohojiy [21]
There are longitudinal and transverse.  Both types of mechanical waves require a medium, transport energy, and have defined wavelengths, frequencies, and speeds.
Differences are that transverse waves oscillate along a direction perpendicular to the direction of travel (like shaking a rope up and down).  Longitudinal waves like oscillations along a spring and sound waves, oscillate back and forth along the direction of travel. 
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Select the correct answer.
Gelneren [198K]

Answer: It's b and c I got it right

Explanation:

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In designing buildings to be erected in an area prone to earthquakes, what are the things that you need to consider?
il63 [147K]

Answer:

In an earthquake prone area, the things that are needed to be considered for the buildings to stand constant and no cause of damages are as follows-

  • The foundation of the building must be made strong, using large amount of concretes so that it can hold the entire load of the building.
  • The pillars of the buildings are also should be firmed, rigid, strong and thick.
  • The buildings are needed to be construct in such a way that during any seismic event, the forces can be redistributed easily through the body of the building without causing any damage.
  • The buildings must be overall comprised of holding high strength and stiffness.
6 0
3 years ago
a player passes a 0.600kg basketball down court for a fast break.the ball leaves the player hands with a speed of 8.30m/s and sl
Setler79 [48]

At the release point, the ball has kinetic energy,

\dfrac12m{v_0}^2

and at its maximum height it has potential and kinetic energy,

-mgy+\dfrac12mv^2

where y is the maximum height attained above the release point.

The LoCoE tells us that we should have

\dfrac12m{v_0}^2=-mgy+\dfrac12 mv^2

\implies v^2-{v_0}^2=-2gy

\implies\left(7.20\dfrac{\rm m}{\rm s}\right)^2-\left(8.30\dfrac{\rm m}{\rm s}\right)^2=-2\left(9.80\dfrac{\rm m}{\mathrm s^2}\right)y

\implies y=0.870\,\mathrm m

7 0
3 years ago
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B.f. skinner is the founder of operant conditioning .
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