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A plane travels 1.5 km at angle of 38 degrees to the ground, then changes direction and travels 6.9 km at an angle of 11 degrees to the ground. What is the magnitude of the plane's total displacement? Answer in units of km. What angle above the horizontal if the plane's total displacement? Answer in units of degrees
A 111 gram apple falls from a branch that is 3.5 meters above the ground, How much time elapses before the apple hits the ground
The third floor of a house is 10.00 m above street level. How much work is required to move a 170kg refrigerator to the third floor.
a beam of white light makes an angle of incidence of 38deg with a glass prism of index of refraction of 1.5 and
A beam of vertically polarized light encounters two polarizing filters, as shown in the figure(Figure 1) . Calculate the transmitted intensity for each of the cases in the figure, assuming that the incident intensity is 26.5 W/m^2
A high-speed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball, initially at rest, for about 0.0038 s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 2.5 102 ft/..
A massless spring with spring constant k is vertically mounted so that the bottom end is firmly attached to the ground, and the top end is free. A ball with mass m falls vertically down on the top end of the spring, becoming attached, so that the ..
A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. What is the work done on the jet by the catapult
A 1.0 kilogram wheel in the form of a solid disk rolls along a horizontal surface with a speed of 6 m/s. Compute what the total kinetic energy of the wheel
A spectral line of sodium normally has a wavelength of 5890Angstroms. The same line measured in the spectrum of a star is at awavelength of 5625 Angstroms. At what speed in the star traveling? Is the star moving towards us or away from us?
The coil of a galvanometer has a resistance of 19.8 ?, and its meter deflects full scale when a current of 6.30 mA passes through it. What is the maximum current that this ammeter can read
A 100-g cube of ice at 0 C is dropped into 1.00 kg of waterthat is originally at 80.0 C. What is the final temperature of the water after it is melted
On a cold night the temperatures of the two surfaces of a glass windowpane in a house are 7.8° C on the outer surface, Find the rate at which heat is conducted through the glass per square meter of window area
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