Answer:
.7934
Explanation:
Acceleration = change in velocity / change in time
A = 10.98 / 13.84
A = .7934
Diverging lens diverges ray of light. Their focal length is taken as negative because according to sign convention, the radius of curvature of that surface on which light refracts is to the left and every number to the left of 0 in real number line is taken as negative.
Pole is considered as origin. If focal point(F) lies to the left of pole, then it is taken as negative. Why? it is a rule
Answer:
the circles are called Sun spots. they are colder than the surrounding area.
Explanation:
Answer:
Speed of the jet is 100 m/s.
Explanation:
Given that,
Mass of the jet, m = 10 kg
Spring constant, K = 160 N/m
Distance covered by the aircraft to stop, x = 25 m
Let v is the landing speed of the plane. It can be calculated using the conservation of mechanical energy. Since, the kinetic energy of the plane must be equal to the elastic potential energy of the spring as :
v = 100 m/s
So, the speed of the jet when it first hooks on to the cable is 100 m/s. Hence, this is the required solution.