If the height of the building is 20.3 m, what must the initial speed be of the first ball if both are to hit the ground at the same time?

Describe how a change in the geosphere affect the biosphere?

Who has the primary responsibility to prepare for emergencies? local education agencies federal government agencies local government agencies individuals, families, and communities

A quantity of a gas has an absolute pressure of 400kPa and an absolute temperature of 110 degrees Kelvin. When the temperature of the gas is raised to 235 degrees Kelvin, what's the new pressure of the gas?

10.88 = in scientific notation

Two Carnot air conditioners, A and B, are removing heat from different rooms. The outside temperature is the same for both rooms, 317 K.

Imagine riding On a merry-go-round at the center. As you walk to the outer edge, the merry-go-round slows in order to conserve angular momentum. True or false?

17. (a) Will the electric field strength between two parallel conducting plates exceed the breakdown strength for air (3.0*106 V/m) if the plates are separated by 2.00 mm and 5.

What property of sound enables us to distinguish one sound source from another?

The table below shows the right ascensions of two stars at a location. Star 1 - 4 right ascension (in Hour) Star 2 - 3 right ascension (in Hour) Which of these statements is correct about the stars?

H-2 + H-3 → He-4 + Consider the nuclear reaction that takes place in the sun. Two nuclides of hydrogen fuse to form helium. Is helium the only product of this reaction? If no, identify any additional products. A) Yes, He-4 is the only product. B) No.