The north vectors add up as so the south vectors. Then subtract the two. For north its 4 + 5 = 9. South is 2 + 5 = 7. Then 9-7 = 2km North (D)
Answer:
I believe the answer is B) Two wavelengths
The measuring devices for mass is scales and Balances
They are not perfectly horizontal because the wind and earth don't always make perfect lines.
Answer:
Energia mecânica = 300 Joules
Mechanical Energy = 300 Joules
Explanation:
given
m = 2.5kg
g=10m/s²
h=?
K.E = P.E
K.E = 150Joules
¹/₂mv² = m ×g ×h
150 J = 2.5 × 10 × h
h = 150/25
h= 6m
Mechanical energy = K.E + P.E
ME = 2 × 150 J
Mechanical Energy = 300Joules
dado
m = 2,5 kg
g = 10m / s²
h =?
K.E = P.E
K.E = 150Joules
¹ / ₂mv² = m × g × h
150 J = 2,5 × 10 × h
h = 150/25
h = 6m
Energia mecânica = K.E + P.E
ME = 2 × 150 J
Energia mecânica = 300Joules
