Power = energy / time
Time should be in seconds
5 hours = 5 × 60 minutes = 5 × 60 ×60 seconds = 18000 s
Power = 6000/18000 = 0.333 W
Hope it helped!
We can solve the problem by using conservation of energy.
In fact, initially the projectile has only kinetic energy, which is given by
where m is the projectile's mass while
is its initial velocity.
At the point of maximum height, the speed of the projectile is zero, so it only has gravitational potential energy which is equal to
where g is the gravitational acceleration and h is the maximum height of the projectile.
Since the energy must be conserved, we can equalize K and U to find the value of h:
Answer:
Explanation:
a) Linear Speed ; v = 590 x 2π/60 x 3.3 = 203.91 m/s
b) We get the radial acceleration of the tip of the blade as
a = w²r or v²/r
a = (203.91 m/s)² / 3.3
= 12600.50 m/s²
Acceleration due to gravity of the earth = 9.8m/s²
ratio of radial acceleration to g = a-rad/g
= 12600.50/ 9.8 = 1285.76g
Answer:
Sedimentary rocks are usually formed under water when grains of broken rocks are glued together while igneous rocks form when melted rock (magma or lava) cools and metamorphic are rocks that once were igneous or sedimentary rocks but have been changed by pressure and temperature.