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A flight controller determines that an airplane is 25mi south of him. Half an hour later, the same plane is 30mi northwest of him. Plane is flying North of West, if the plane is flying with constant velocity. Obtain the direction of its velocity during this time?
Find the magnitude of its velocity during this time?
A baseball is hit with a speed of 30ms-1 at an angle of 40degrees. It land`s on the flat roof of a nearby building with a height of 14 m. If the ball was hit when it was 1.40 m above the ground, what horizontal distance does it travel before it la..
An object is placed in front of a concave mirror with a focal length of 37 cm. What is the position of the resulting image if the image is upright
The one-dimensional parity operator pi is defined by pi psi (x) = psi (-x) In other words, pi changes x into –x everywhere in the function. Is pi a Hermitian operator? For what potentials V(x) is it possible to find a set of wavefunctions which are e..
A bicycle tire is inflated to a gauge pressure of 4.0 at m when the temperature is 12°C. While a man is riding the bicycle, the temperature of the tire increases to 45°C. Assuming the volume of the tire does not change, what is the measure pressure i..
a 2.30-cm-high object is situated 20.1 cm in front of a concave mirror that has a radius of curvature of 13.4 cm.
Near Earth, the density of protons in the solar wind (a stream of particles from the Sun) is 12.5 cm-3, and their speed is 657 km/s. Find the current density of these protons
A person in a cave emits a sound and receives an echo 2.5 seconds later. How far is that person away from the wall
If a 4-engine jet accelerates down the runway at 5m/s2 and 3 of the jet engines fail, how much acceleration will the other one produce.
compute the cost per day of operating a lamp that draws a current of 2.20 a from a 110 v line. assume the cost of
A 70 kilogram gymnast applies a vertical ground reaction force of 1300 N at 0.2 meter behind the center of mass. Find the torque generated about the center of mass
When driving west toward the Rocky Mountains, you see a peak 3.7 above the horizon. What is the peak's elevation
A block of mass 0.6 kg is moving up a 40 degree inclined plane at a speed of 2 m/s. how far up the plane will the block go before stopping
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