Answer:
A) because wave speed remains constant.
Explanation:
The wave speed of a wave in a medium depends on the nature of the medium.
For transverse waves in a string given by,
, T = tension , m = linear density
For longitudinal waves in a solid,
, ξ = modulus of elasticity, ρ = density
Like wise for different media, different properties and parameters govern the speed of waves moving through them.
It is important to mind in v = fλ ,f or λ does not influence on speed of wave in a medium but shows how f and λ varies as a wave propagate in a medium(/media).
Depends on the mass of the projectile versus the object.
The force of gravity is dependent upon the mass of the object. Therefore if the mass of the projectile and the mass of the object are exactly the same than both objects will fall at the same rate and will collide. If the mass of the object is significantly larger than it will fall faster and the projectile will pass above it. The opposite is true if the mass of the object is less than the mass of the projectile, in which case the projectile will pass underneath.
Lastly, this analysis excludes the force of wind resistance on the projectile and the object. Under a complex model how the projectile travels through the air will have a separate impact that will alter its decent or rise outside of gravity. For example, if the projectile is spinning it could "cut" into the wind and cause accelerated drop. Think of a curve ball in baseball or a rising fastball.
The ratio of output power to input power is called efficiency. There is no reason that efficiency must be expressed in percent. It can be a fraction a decimal or a ratio.
Answer:
no
Explanation:
the goalie can move side to side but cant go out of the goalie box.
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