Answer: Option B
Explanation : When a negatively charged object A gets in contact with the neutral object B, the negative charge of object will induce the opposite charges on object B. Hence, there will be a positive charge on object B
Projectile<span>: Object that moves horizontally or at an angle to the Earth's surface. parabolic: The shape of the </span>curved path<span> of a </span>projectile<span>. air resistance: A force of friction produced when an object moves through the air.
So essentially when the projectile moves the air resistance causes the projectile to follow the parabolic, or the curved path.</span>
Answer:
l = 0.548 m
Explanation:
For this exercise we compensate by finding the speed of the car
p = m v
v = p / m
v = 0.58 / 0.2
v = 2.9 m / s
this is how fast you get to the ramp, let's use conservation of energy
starting point. Lowest point
Em₀ = K = ½ m v²
final point. Point where it stops on the ramp
= U = m g h
mechanical energy is conserved
Em₀ = Em_{f}
½ m v² = m g h
h = 
let's calculate
h =
h = 0.0858 m
to find the distance that e travels on the ramp let's use trigonometry, we look for the angle
tan θ = y / x
tan θ = 12/75 = 0.16
θ = tan⁻¹ 0.16
θ = 9º
therefore
sin 9 = h / l
l = h / sin 9
l = 0.0858 / sin 9
l = 0.548 m