A sample of dna conains 500 adenine bases. how many thymine bases does it contain

How can humans use the electromagnetic spectrum in everyday life?

How old is someone right now that was born on leap year 8 years ago?

How does subsidence at the storm's periphery make surface air relatively dry there?

A proton is released from rest at x=5 cm. what direction does it move?

A cannonball is fired horizontally from the top of a cliff. the cannon is at height h = 80.0 m above ground level, and the ball is fired with initial horizontal speed v0. assume acceleration due to gravity to be g = 9.80 m/s2.

How does erosion move and deposit rocks

A container with rounded ends and constructed of heavy gauge metal usually indicates contents under pressure contents that are corrosive contents that are flammable contents that are liquid

In static electricity what are the subatomic particles, their charges, their location in the atom

How does resistance affect the current in a circuit?

The period of a cepheid variable star and the time of one recent maximum can be used to predict the time of a future maximum. suppose that you calculate the time of future maximum brightness and then make measurements to observe this maximum.