Answer:
966.22 mph
Explanation:
Velocity of plane with respect to wind (Vp,w)= 612 mph east
velocity of wind with respect to ground, (Vw,g) = 362 mph at 15° North of
east
Write the velocities in vector form
Use the formula for the relative velocity
Where, V(p,w) is the velocity of plane with respect to wind
V(p,g) is the velocity of plane with respect to ground
V(w,g) is the velocity of wind with respect to ground
So, 
Magnitude of velocity of lane with respect to ground
V(p,g) = 966.22 mph
The form of energy a violin produces is sound.
Answer:
11.5 meters
Explanation:
73.3°, 12.0m
The y-component is the magnitude of the vector times the sine of the angle measured from the +x axis.
y = 12.0 sin (73.3°)
y = 11.5
The y-component is 11.5 meters.
Added potential energy = (mass) x (gravity) x (height)
or
Added potential energy = (weight) x (added height)
If you need to lift a 15N box 3m straight up, you have to increase its potential energy by (15 N) x (3 m) = 45 Joules .
Where is that added potential energy supposed to come from ? You could use an electric winch, a steam engine, a gasoline-powered motor, thousands of hamsters running on little treadmills that are are connected to the main pulley somehow, or your own arm muscles. But howEVER you do it, you have to provide <em>45 Joules</em> of WORK in order to increase the potential energy of the box by just that much.
Mass is that quantity that is solely dependent upon the inertia of an object. The more inertia that an object has, the more mass that it ha
