<span>R² = 12² + 4² - 2*12*4cos45° </span>
<span>R² = 92.12 </span>
<span>R = 9.6 mph ===========> ANSWER </span>
<span>Use law of sines to find bearing </span>
<span>4/sinA = R/sin45° </span>
<span>sinA = 4sin45°/9.6 = 0.2946278...... </span>
<span>A = 17.14° </span>
<span>bearing = North 17.14° West or 342.86°</span>
Answer:
7300 mL
Explanation:
The question is a bit misleading, since tanks generally have a constant volume. But anyway, using ideal gas law:
PV = nRT
If amount of gas (n) is constant, then:
PV / T = constant
P₁V₁ / T₁ = P₂V₂ / T₂
(1798 kPa) (4579 mL) / (55 + 273) K = (1025 kPa) V / (25 + 273) K
V = 7298 mL
Rounded to two significant figures, the volume is 7300 mL.
I’d say 4 because running a mile in 6 minutes is better than what most people can do and that will really make your heart rate go up
Answer:We have , a relation in frequency f and wavelength λ of a wave having the velocity v as ,
v=fλ ,
given f=60Hz , λ=20m ,
therefore velocity of wave , v=60×20=1200m/s
Formula for net force: force= mass x acceleration
