Answer:
8271.92 m
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration
Equation of motion
The height reached at 18 seconds is 2916 m
The velocity at 2916 m is 324 m/s
Maximum height reached by the toy rocket is 2916+5355.92 = 8271.92 m
Answer:
Explanation:
Let's use the conservation of angular momentum here. If there is a conservation the addition of both must be zero.
The momentum of inertia of both are:
The angular momentum is the product between angular velocity and momentum of inertia.
Let's solve it for ω(t).
But
- R is the radius R=D/2 = 30 cm = 0.3 m
- V is the steady speed V = 0.74 m/s
Knowing that 2π rad is a rev. We have.
The minus sign means the track is moving opposite of the car.
I hope it helps you!
Answer:
It cancels recoil.
Explanation:
For each action there is an equal an opposite reaction.
The principle of conservation of momentum tell us that if a single spore were ejected the fern would suffer a recoil from it. This recoil would take energy and speed from the spore. But if they are ejected in pairs the recoil is canceled and all the energy is transferred to the spores resulting in higher speeds.
Answer: thermal
Explanation:
Moving particles transfer thermal energy through a fluid by forming convection currents.