(i) What is the acceleration of an object between 0-4 seconds? (a) 2 m/s2 (b) 1.5 m/s2 (c) 4 m/s2 (d) 3 m/s2
(ii) What is the acceleration of an object between 4-10 seconds?
(a) 2 m/s2 (b) 1.5 m/s2 (c) 0 m/s2 (d) 3 m/s2
(iii) What is the acceleration of an object between 10-16 seconds?
(a) -2 m/s2 (b) -1.5 m/s2 (c) -4 m/s2 (d) -1 m/s2
(iv) What is the distance covered by an object between 4-10seconds? (a) 36 m (b) 60 m (c) 40 m (d) 30 m
(v) What is the total distance covered by an object after 16 seconds?
(a) 56 m (b) 66 m (c) 50 m (d) 96 m

In a wind tunnel the speed changes as the cross sectional area of the tunnel changes. if the speed in a 6' x 6' square test section is 100 mph, what was the speed upstream of the test section where the tunnel measured 20' x 20'? use conservation of mass and assume incompressible flow. conservation of mass requires that as the flow moves through a path or a duct the product of the density, velocity and cross sectional area must remain constant; i.e., that ova-constant. a model is being tested in a wind tunnel at a speed of 100 mph if the flow in the test section is at sea level standard conditions, what is the pressure at the model's stagnation point? (a) the tunnel speed is being measured by a pitot-static tube connected to a u- tube manometer. what is the reading on that manometer in inches of water? (b) at one point on the model a pressure of 2058 psf is measured. what is the local airspeed at that point?

Quantum mechanics applies to subatomic, atomic, nanometer-size, and micrometer-size systems. nanometer, micrometer, and kilometer-size systems. atomic, nanometer-size, and micrometer-size systems. subatomic, atomic, and nanometer-size systems.

Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?