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A jet is circling an airport control tower at a distance of 18.0 kilometer. An observer in the tower watches the jet cross in front of the moon. As seen from the tower, the moon subtends an angle of 9.04 x 10-3 radians. Obtain the distance traveled by the jet as the observer watches the nose of the jet cross from one side of the moon to the other.
A voltmeter is connected in parallel to a resistor when measuring Vi. Why is the measured voltage across a 10 M Ω resistor not equal to the voltage measured across a power supply?
Consider an airplane of wing area 6.8 m^2 (both wings combined) flying through air of density 1.13 kg/m^3. What is the net upward lift force on the plane
A horizontal force of 280 Nis exerted on a 2.0 kg discus as it is rotated uniformly in ahorizontal circle (at arm's length) of radius 1.00 m. Calculate the speed of the discus
A 500 gram block attached to an ideal spring (k = 80 N/m) oscillates on a horizontal frictionless surface. Find the compression distance (x) of the spring
A train moving with a constant speed of 75 km/hr moves east for 45 minutes then in a direction 20o east of north for 60 minutes. Find the magnitude of the average velocity of the train
A 2.0 kg cart has a spring with k = 5000 N/m attached to its front, parallel to the ground. What is the speed of each cart after the collision
Two very small spheres are initially neutral and separated by a distance of 0.60 m. What is the magnitude of the electrostatic force that acts on each sphere
A parallel beam of light from a He-Ne laser, with wavelength of 644 nm, falls on two very narrow slits 0.05 mm apart. How far apart are the fringes in the center of the pattern on a screen 2.2m away.
light of wavelength 458 nm is incident on a narrow slit. the diffraction pattern is viewed on a screen 3.49 m from the
two cylindrical wires of identical length are madeof copper and aliminum. if they carry the same current and have the
A car drives on a road which begins flat, then goes up and over the top of a hill and then goes down into a dip and back up to level ground.
A rowboat crosses a river with a velocity of 3.67 mi/h at an angle 62.5° north of west relative to the water. How far upstream is the boat when it reaches the opposite shore
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