Speed = distance / time
Part 1: 40 km at 80 km per goir = 0.50 hours
Part 2: 40 km at 40 km per hour = 1 hour
The time of the trip was 1.5 hours
Total distance was 40 + 40 = 80 ins.
Speed = distance / time = 80/1.5 = 53.33 km/he ( round answer as needed)
The sum of the two vectors in A, B, and C is equal to the sum of the two vectors above the line. The sum of the two vectors in D isn't.
Answer:
Hertz extended Maxwell's idea that light is produced by the interaction of electromagnetic fields. Waves produced a diffraction pattern. Results supported the wave theory of light.
Answer:
100 m/s²
Explanation:
First, convert to SI units:
50 g = 0.050 kg
Now plug into the formula:
F = ma
5 N = (0.050 kg) a
a = 100 m/s²
Answer:
T = 4517.48 N
Explanation:
It is given that,
Average power of the motor, 
Speed of the boat, 
Force or tension acting on the motor at this point is given by :



T = 1916.08 N
Average power generated by the engine, 
Force or tension acting on the motor at this point is given by :



T = 6433.56 N
So, the tension in the tow rope that is pulling the skier is, T = 6433.56 N - 1916.08 N = 4517.48 N