Abowl of mass .5 kg, initially at rest, is kicked directly towards a fence for my points 20 m away. the velocity of the ball as it leaves the kids foot is 17 m/s at the angle of 46° above the horizontal. the top of the fence is 6 m high. the kickers what is in contact with the ball for .04 seconds. the ball hits nothing while in flight and air resistance is negligible. the acceleration due to gravity is 9.8 m/s squared. determine the time it takes for the ball to reach the plane of the fence

In order of decreasing light-transmitting capabilities of materials, which is the correct sequence? a. transparent -> translucent -> opaque b. opaque -> transparent -> translucent c. opaque -> translucent -> transparent d. translucent -> transparent -> opaque

The ph is the a.independent variable b.the dependent variable c.control group

Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.