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A football player kicks a ball at an angle of 37 degrees above the horizontal, with a velocity of 20.0 m/s^2. How far horizontally does the ball travel in 1.80 s? How high does the ball travel in 1.80 s? (g = 9.80 m/s, and air resistance is negligible).
consider a bright star in our night sky. assume its distance from earth is 20.9 light-years ly and its power output is
A car is hauling 91 kilogram trailer, to which it is connected by a spring. The spring constant is 2400 N/m. Determine by how much does the spring stretch
Write an expression for a R -state lightwave of angular frequency wand amplitude E0 propagating in the positive x-direction such thatat t=0 and x=0 the E-field points in the negative z-direction.
A proton moves 2.5 cm parallel to auniform electric field of E = 170N/C. How much work is done by the field on the proton?
Two toroidal solenoids are wound around the same form so that the magnetic field of one passes through the turns of the other.Solenoid 1 has 690 turns and solenoid2 has 400 turns.
Determine how much energy is transported across a 1.35 cm2 area per hour by an EM wave whose E field has an rms strength of 40.0 mV/m
Suppose the previous hypothetical atom has TEN energy levels. Now, what is the maximum number of unique spectral lines that could be measured in the emission spectrum of the atom?
Goal Solve a calorimetry problem involving three substances at three different temperatures. Problem Suppose 0.400 kg of water initially at 40.0°C is poured into a 0.300-kg glass beaker having a temperature of 25.0°C. A 0.500-kg block of aluminum ..
a 20000 kg rocket has a rocket motor that generates 3.0times105 n of thrust. what is the rockets initial upward
a 50.0-kg block is being pulled up a 13.0deg slope by a force of 250 n which is parallel to the slope. the coefficient
at a mail sorting facility packages slide down a ramp but are stopped part way down the ramp so that they can be
A probe sent to the surface of Mars uncovers a pure platinum disc inscribed with the message, "We'll be right back" (in Martian, of course!). The disc is 2 inches thick and 0.4 meters in diameter. The density of platinum is 21,450 kg/m3. What is the ..
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