Aprojectile is launched from a point on level ground with initial speed 7.1 miles/hour and initial angle of 6 degrees above the horizontal. air resistance may be ignored and normal earth gravity is present. calculate the final value of the horizontal component of velocity in m/s just prior to the projectile striking the ground. [note: don't forget to convert units as needed.] g

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?

Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)