ANSWER:
a. 50.53 km/h
b. 32.53 km/h (in the direction of 25˚ S of E)
c. 4.27 km/h
d. 0 km/h
STEP-BY-STEP EXPLANATION:
a.
We have that the speed is given by the following formula:
We know that the equivalence between minutes and hours is that 60 minutes equals 1 hour, therefore:
b.
The velocity is given by the following formula
c.
The total distance traveled would then be two 16 kilometers, that is 32 km and the time would be 7.5 hours. we replace
d.
Since it starts in the same place that it ends, the displacement is equal to 0, therefore, the velocity is equal to 0 km/h
Answer and Explanation:
The law of conversation of energy states that energy cannot be created or destroyed. The pendulum slows down and stops eventually not because the kinetic energy is destroyed, but it is transferred into sound and heat energy instead because there is air resistance and friction.
Kinetic energy => Gravitational potential energy (Loop but some energy transferring to heat and sound each time)
Answer:7.772
Explanation: not sure how to do it but that was the correct answer for the problem
One nanometer is equal to 1e-7 centimeters
Educated guess, maybe collect data