If steel is more dense that lake water, why can a boat float

General description of what is happening to buoyancy

The use of a simple machine will reduce the amount of work needed to move an object. true false

If you suspect your culture of bacteria has 25 x 107 cells per mL, what would you want the final dilution to be in order to end up with 100 cfu on a plate?

In the game of 9-ball, the pool balls are initially placed in a grouping of which shape?

The environment between the outer and inner nuclear membranes is most accurately referred to as the: a. nuclear envelope. b. cytoplasm. c. perinuclear space. d. nucleoplasm. e. intermembra

A car is moving with a speed of 22 m/s. The driver then brakes, and the car comes to a halt after 6.5 s. What is the distance covered by the car after the driver brakes, until it comes to a stop? A) 36 m B) 72 m C) 140 m D) 210 m

Which of the following best explains why an explosive charge in a cannon can cause a cannonball to fly out of the cannon with a high velocity? A. because chemical potential energy can convert to gravitational potential energy B.

Distance divided by time what is velocity

The decay constant of a radioactive nuclide is 4.6 x 10^-3 s^-1. What is the half-life of the nuclide? 2.5 min 2.0 min 1.4 min 3.6 min 3.1 min

A furlong is an old british unit of length equal to 0.125 mi, derived from the length of a furrow in an acre of ploughed land. a fortnight is a unit of time corresponding to two weeks, or 14 days and nights.