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A 2090 kg test plane has an engine that can deliver a maximum power of 4.90 x 10^5 watts. The pilot hits the throttle when the plane is flying at 54.2 m/s and maintains maximum power for 3.4 seconds.
a) What is the plane's initial kinetic energy?
b) What is the plane's change in kinetic energy?
c) What is the plane's final kinetic energy?
d) What is the new speed of the plane after 3.4 seconds?
For the spherical distribution: A conducting spherical shell of inner radius b and outer radius c is concentric with a small metal sphere of radius a
Two long straight parallel wires are 12cm apart. Determine the force on wire A due to wire B, and the force on wire B due to wire A.
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Four identical metallic objects carry the following charges: +2.2 µC, +7.0 µC, -7.0 µC, and -3.2 µC. The objects are brought simultaneously into contact; so that each touches the others. Then they are separated. (a) What is the final charge on each o..
The 5-kg uniform rod AC is attached to springs of constant k = 500 N/m at B and k =620 N/m at C, which can act in tension or compression.
What is the line charge density on a long wire if the electric field 44cm from the wire has magnitude 280kN/C and points toward the wire
An astronomical telescope uses an eyepiece of power +100.0 D. what are the power of the objective and the magnifcation of the telescope
A 0.500 kg solid mass is totally submerged in water while suspended from a spring balance. Calculate the volume of the solid mass
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the lob in tennis is an effective tactic when your opponent is near the net. it consists of lofting the ball over his
An electric field of 9.50 105 V/m is desired between two parallel plates, each of area 44.5 cm2 and separated by 2.45 mm of air. What charge must be on each plate
A man walks at 3 m/s on a still day along the line between two fire stations. Find the apparent frequency of each whistle
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