The position of an object moving along the x

axis is given by x (t) = 2t^2+t^3 + 1, where x is

in meters and t in seconds. The acceleration of

the object at t = 2 seconds is:

4m/s?

Which actions are part of a system of methodical tests and refinements specific to technological design? documenting, tinkering, testing tinkering, presenting, testing testing, documenting, presenting presenting, tinkering, testing

g An astronaut stands on the surface of the Moon and drops a dictionary (with a mass of 8 kg) and a cell phone (with a mass of 200 g) at the same time from the same height. Which will hit the ground first? Ignore the effects of atmospheric friction.

Which of the following is not necessarily a criterion for ethical behavior

A uniform rod rotates in a horizontal plane about a vertical axis through one end. The rod is 3.46 m long, weighs 12.8 N, and rotates at 226 rev/min.

Give an example of how you would see metamaterials in the present world?

Which nitrogen base sequence is the partner of C-A-T-C-G-A? O C-A-T-C-G-A O G-T-A-G-C-T OT-G-C-T-A-G O G-C-A-T-G-T TI

What is the kind of energy that comes from movement?

The average kinetic energy of 1 mole of a gas at 273 degrees Celsius is: 6.81 x 103 J 3.40 x 103 J 1.51 x 103 J 6.72 x 101 J

Which one of the following crystal structures has the fewest slip directions and therefore the metals with this structure are generally more difficult to deform at room temperature? a. BCC b. FCC c. HCP d. BCT

To rid the body of wastes, including excess water and salts" is the purpose of what human body system? A) Digestive B) Excretory C) Skeletal D) Nervous