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A quarterback throws the football to a stationary receiver who is 24.6 m down the field. The football is thrown at an initial angle of 39.6o to the ground. The acceleration of gravity is 9.81 m/s2. Find the ball highest point during its flight?
Answer in units of meters
A dedicated sports car enthusiast polishes the inside and outside surfaces of a hubcap that is a section of a sphere. When he looksinto one side of the hubcap, he sees an image of his face29.0 cm in back of the hubcap
A stone tied to the end of a string is whirled around in avertical circle of radius R. Find the critical speed below which the spring would become slack at the highest point
A 0.0400 kg golf ball initially at rest is given aspeed of 35.0 m/s when a club strikes.If the club and ball are in contact for 2.00 ms, what average force acts on the ball
A bat can detect small objects, such as an insect, whose sizeis approximately equal to one wavelength of the sound the batmakes. If bats emit a chirp at a frequency of 53.0 kHz, and if the speed of sound in air is 340 m/s,what is the smallest insect ..
A 4.67-kg ball of clay is thrown downward from a height of 2.77 m with a speed of 4.81 m/s onto a spring with k = 1450 N/m. Find the total work done on the clay during the spring's compression
A 2500 kg satellite is to be launched and put in orbit at 750km above the surface of the earth. What gravitational force will the satellite experience? How fast is the Satellite traveling in orbit?
Three particles, each with a mass of 0.25 kg, are located at ( -4.0 m, 0), (2.0 m, 0), and (0, 3.0 m) and are acted on by forcesF1 = (-3.0 N)y, F2 = (5.0 N)y andF3 = (4.0 N)x, and respectively. Find the acceleration(magnitude and direction) of the..
a ball is thrown horizontally from the top of a building 0.10 km high. the ball strikes the ground at a point 65 m
In this section assume the sound speed in air is 343 . A goose flying toward you at 12.4 emits a squawk, which you hear at 251. Find the wavelength of the sound you hear
A 50cm diameter wheel rolls wothout slipping. The wheel spins 20rad/s. What is the speed of the axle of the wheel
at a distance of 1.85 m from a point charge of 1.99 oc there is an equipotneial surface. at greater distances there are
Figure 13-46 shows four particles, each of mass 30.0 g, that form asquare with an edge length of d = 0.700 m.If d is reduced to 0.400 m, what is the change in the gravitational potential energy of the four-particle system?
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