Answer:
Maximum height reached is given as H = 5.00 m
Explanation:
As we know that if the ball is projected at some angle with the horizontal then the range of the projectile is given by the formula
here we have
v = 40 m/s
Now we have
now for maximum height we have
Answer:62m/s
Explanation:
Initial velocity(u) =12m/s
Acceleration(a)=2.5m/s2
Time(t)=20seconds
Final velocity(v)=?
V=u+axt
V=12+2.5x20
V=12+50
V=62m/s
Answer:
Option (a) is the correct answer
Explanation:
Option (a) smaller than P is the correct answer for the given question. This is because the pressure (P) at any depth 'd' from the top surface of the water with density (ρ) is given as:
P = ρ × g × d
where,
g is the acceleration due to the gravity
thus from the above equation it can be concluded that the pressure at any depth 'd' is directly proportional to the density of the water.
thus,
in the given case the density of the water is lower than that in the first case.
Hence, the option (a) is the correct answer
Aluminium is less dense which is lighter and the cast iron has more dense that's why it's heavier :)
Answer: The force you exert on the handle of a screen door as you open the door is on the order of 10 N. The force exerted by a honeybee as it lands on a flower is on the order of 0.001 N. The thrust force produced by the engines of a passenger jet as it takes off is on the order of 100,000 N. The weight of the largest aircraft carriers is on the order of 1,000,000,000 N.
Explanation:
In the first case, force made by hands and arms movement is in the range of 1 or 10N. In the second case, we are talking of a honeybee, an insect that weighs grames. The third case is the force required to make a plane take off (it is %10 of the thrust force of a plain with a weight of 300000N to 1000000N). In the last case, we are talking of the largest aircraft carriers, steel monsters that weight thousand of tons.