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A flight controller determines that an airplane is 30.0mi south of him. Half an hour later, the same plane is 30.0mi north west of him
a) If the plane is flying with constant velocity, what is the direction of its velocity during this time? answer will be in degrees north of west
b) What is the magnitude of its velocity during this time?
When a force of 19.0 N is applied to a spring, it elongates 0.0858 m. find out the period of oscillation of a 4.0 kg object suspended from this spring.
A dipole is formed by point charges +3.8 micro Coulomb and -3.8 micro Coulomb placed on the axis at (0.45 m, 0) and (-0.45m, 0), respectively. At what positions on the axis does the potential have the value 7.7×105 V?
At what angle is the curve banked? The acceleration due to gravity is 9.8 m/s2.
Tension is maintained in a string. The observed wave speed is 25 m/s when the suspended mass is 3.0 kg. (a) What is the mass per unit length of the string? (b) What is the wave speed when the suspended mass is 1.7 kg?
A 100 arrow is shot vertically from a bow whose efficient spring constant is 500. If the bow is drawn 75 before shooting the arrow, to what height does the arrow rise .
The average temperature in Gunnison for the first two months of the year are: 1) January (31 days) 10°F 2) February (28 days) 15° F. What are the total number of degree days for Gunnison over these two months?
A hotel elevator ascends 170 {rm m} with a maximum speed of 5.90 {rm m/s}. Its acceleration and deceleration both have the magnitude of 1.3 {rm m/s^2}.
Because of the cramped space under the hood, you'll need to pull at an angle of 105 with respect to the wrench shaft. Illustrate with what force must you pull?
What is work done by the non-conservative force
How long will a radar signal take to complete a round trip between earth and mars when the two planets are 0.7 AU apart.
The magnitude of earth's magnetic field is 50.0 µT and makes an angle of 30° with the plane of the coil. Assume a patient takes 1.50 s to inhale, find the magnitude of average induced emf in the coil during that time.
A box weighing 77.0 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end. Determine the force that the table exert on the box if the weight hanging on the other side of the pulley ..
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