A concrete cube of side 0.50 m and uniform density 2.0 x 103 kg m-3 is lifted 3.0 m vertically by a crane. what is the change in potential energy of the cube

Rank them from fastest to slowest in how quickly each warms up: (a) steel, 450 j/kgââc; (b) aluminum, 910 j/kgââc; (c) copper, 390 j/kgââc.

A change in a populations genes from one generation to the next due to chance or accident is refrerred as a

Acceleration is measured in m/s/s (meters per second squared). True or False

Some fuels are classified as nonrenewable because they -

velocity graph of a particle moving along the x-axis. Its initial position is x0 = 2m at t0 = 0. At t = 3 s, what are the particle's (a) position, (b) velocity, and (c) acceleration?

you can produce a sound by plucking a string or by blowing in a pipe. how are these two ways different?

There are four springs stretched by the same mass. Spring A: 25 cm Spring B: 10 cm Spring C: 100 cm Spring D: 1 cm Which spring is the strongest? A B C D

Consider a rough asphalt roadway with 17 cm curbs and one 3.75 m lane in each direction and a 1.45 m shoulder on each side. The road has a longitudinal slope of 0.75% and is crowned in the center with a transverse slope of 2.25%.

An example of an opinion would be which of the following? bob s burgers is the best show on television. cake is appropriate for many occasions. earth is 238,900 miles from the moon. none of these

Which is a concern about mining for uranium? -Heated water could be released into the environment. -Dust released in the air could be radioactive. -Supplies could become low during a drought.