Question

1.

1. A Ferris wheel starts at rest and builds up to a final angular speed of 0.70 rad/s while rotating through an angular displacement of 4.9 rad. What is its average angular acceleration?

   		0.10 rad/s2
   		0.05 rad/s2
   		1.8 rad/s2
   		0.60 rad/s2

2.

1. An ACME operating table has four legs. Each leg is square, closed on the end and measures 0.10m X 0.10m. If the table weighs 1200 N and the patient on the table weighs 800 N, determine the total pressure exerted on the operating room floor.

   	a.	100,000 Pa
   	b.	200,000 Pa
   	c.	2,000 Pa
   	d.	50,000 Pa

3.

1. The pressure on an oxygen tank reads 300 kPa. An equivalent reading is

   	a.	300 Pa
   	b.	43.5 psi
   	c.	4 atm
   	d.	100 mm Hg

3.

1. If water is moving at a speed of 0.25 m/s through a tube with a cross-sectional area of 0.05 m², what is the flow rate?

   		.013 m3/s
   		.05 m3/s
   		.25 m3/s
   		5 m3/s

4.

1. An object of mass 0.50 kg is transported to the surface of Planet X where the object's weight is measured to be 20 N. The radius of the planet is 4.0 ´ 10 ⁶ m. What is the mass of Planet X? ( G = 6.67 ´ 10 ^-11 N ×m ²/kg ²)

   		13 ´ 1019 kg
   		17 ´ 1022 kg
   		9.6 ´ 1024 kg
   		21 ´ 1025 kg

Answer 1