8. The velocity of waves on an ocean of density p is written as v = Ag* pº 22,
where A, x, y,z are constant, g is the
acceleration due to gravity and á is the
wavelength of
the wave. Using
dimensional analysis, find the exact value
of x, y, and z [JUPEB]

If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s

Resistivity of a material is the resistance of a cm long sample of the material of 1 cm2 cross-sectional area.

Aball is rolled uphill a distance of 5 m before it slows, stops, and begins to roll back. the ball rolls downhill 9 m before coming to rest against a tree. what is the magnitude of the balls displacement? a. 4 meters b. 9 meters c. 14 meters d. 45 meters