What is Freud's term for the primitive, biological side of personality?

A rectangular wooden block of weight W floats with exactly one-half of its volume below the waterline. Masses are stacked on top of the block until the top of the block is level with the waterline. This requires 20 g of mass.

What's the deal with plasma

2) The distance between the sun and the earth is about 1.5 x 10 to the power of 11m. Express this distance with an si prefix and in kilometers.

What are the SI units for work? A. Calories B. Watts C. Ergs D. Joules

Which is an angiosperm. A. fern B. moss C. pine D. tulip

Is sugarcane renewable or nonrenwable and why

during a crash, an airbag inflates to stop a dummys forward motion. the dummy mass is 75 kg. if the net force is on the dummy is 825 N toward the rear of the car, what is the dumys deceleration

A bike rider starts from rest and accelerates 28.0 meters down a slope in 5.00 seconds. What is her acceleration? Select one: a. 3.21 m/sec2 b. 1.75 m/sec2 c. 9.80 m/sec2 d. 2.24 m/sec2

What is the center of atom called?

Helium is considered a noble gas because it has a _blank___ valence electron shell