Which coefficient of O2 is needed to balance the equation C3H8 + O2 → 3CO2 + 4H2O? 2 3 5 6

What is the purpose of a control sample that is known to be from bighead carp in edna surveillance? a. to produce multiple banding patterns b. to amplify the dna in small samples c. to see if samples contain the target dna d.

Two metal rods are made of different elements. The interatomic spring stiffness of element A is 7 times larger than the interatomic spring stiffness for element B.

A proton (rest mass 1.67*10-27kg) is moving at 0.905 c. Find the momentum of the proton. Express your answer with the appropriate units.

This is the angle at which light leaves or bounces off of a surface relative to the normal

Kelly sits on a rock. her weight is an action force. describe the reaction force

Why do comets have tails?

The main characteristic of all vertebrates is the presence of a. cartilage b. a large brain c. a backbone d. an exoskeleton I got it. The answer was B

A projectile is thrown upward so that its distance above the ground after t seconds is h (t) equals negative 16 t squared plus 704 t. a) Find the maximum height the object reaches. b) Find the time it takes the object to reach the ground.

You are standing 100 meters from an object emitting a sound of constant intensity (loudness). You walk toward the source of sound until you are 20 meters from it. From your perspective, what has happened to the intensity of the sound?

What is the peak emf generated by a 0.250 m radius, 500-turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having its plane perpendicular to a uniform magnetic field. (This is 60 rev/s.)