Answer:
The work done will be 57.15 J
Explanation:
Given that,
Mass = 12 kg
Distance = 3 m
Force = 22 N
Angle = 30°
We need to calculate the work done
The work done is defined as,
Where, F = force
d = displacement
Put the value into the formula
Hence, The work done will be 57.15 J
A)Linear motion
If there is not net force on the car, then by the Newton Second Law, the acceleration is zero, and the only valid option for zero acceleration is A).
Answer: Well you didn't give any answers so my guess would be it depends how much force you put into it and where you throw it.
Explanation:
None of the choices is an acceptable answer.
Light ... as well as all other forms of electromagnetic radiation ... is both. When you run light through an experiment built to detect particles ... such as photoelectric stimulation of electron emission ... the light behaves like a stream of particles. When you set up an experiment built to measure and detect waves ... like reflection, refraction, diffraction, dispersion, constructive and destructive interference ... the light does all of those things too.
Scientists would only debate the question if light absolutely positively had to be one or the other, and could not possibly be both. Such a debate isn't necessary, and scientists no longer waste their time arguing about it. Light is both.
Between Maxwell and Einstein, the wave/particle duality of light had been convincingly demonstrated well over a hundred years ago.
Solution:
the boll,
y = Vo t + ½ g t²
y = 18 t + ½ (-9.8) t²
and the second one,
y = Vo t + ½ g t²
y = 30(t – 0.735) + ½ (-9.8)(t - 1.0.735)²
the stone and the ball will pass each other if,
y = y
18 t + ½ (-9.8) t² = 30(t – 0.73) + ½ (-9.8)(t - .0.73)²
t = 1.8196 sec
y = 18 t + ½ (-9.8) t²
y = 18(1.8196) + ½ (-9.8)(1.8196)²
y = 16.5292 m above initial point
Thus, this the required solution.