Your answer is conservation of angular momentum.
Explanation: quizlet!
Answer:
Total time taken by boat to cover all the displacement = 452.3254 sec
Explanation:
We have given speed of boat = 4.72 m/sec
Speed of current flowing = 3.86 m./sec
In downstream relative speed of boat = speed of boat + speed of current flowing = 4.72+3.86 = 8.58 m/sec
Distance traveled downstream = 297 m
So time taken by boat to travel 297 m downstream
In upstream relative speed of speed = speed of boat - speed of current flowing = 4.72 -3.86 = 0.86 m/sec
Distance traveled in upstream = 389 m
So time taken to travel 289 m upstream
So total time
Answer:
Shape the pot so that it has a narrower base and the same size rim.
Explanation:
Answer:
= 19.32 m/s and = 27.32 m/s
Explanation:
The kinetic energy has as formula
K = ½ m v²
Where m is the mass and v the speed of the body.
If the policeman calculates the kinetic energy, let's clear the speed
v = √ 2K/m
Let's reduce the units to the SI system
K = 16.32 KJ (1000 J / kJ) = 16.32 10³ J
Let's calculate
v = RA (2 16.32 10 3/60)
v = 23.32 m / s
The rider at 14.4 km/h, reduce
= 14.4 km / h (1000m / 1km) (1h / 3600s) = 4.00 m / s
We already have the relative speed of the two (rider and police car) which is 23.32, we also have the rider speed 4.0 m / s, let's calculate the possible police speeds
These two speeds come from going in the same direction or in opposite directions
= ±
= - vj
= 23.32 - 4
= 19.32 m/s
= + vj
= 23.32 +4
= 27.32 m/s