The change in pitch of a train's horn as it passes while you are standing still can be explained by

What do geologists use to find absolute rock and fossil ages

Which of the following is true for catalysis of a reaction by an enzyme? Group of answer choices a. The equilibrium constant decreases b. The initial velocity decreases c. The standard free energy of the reaction increases d.

When striking, the pike, a predatory fish, can accelerate from rest to a speed of 4.2m/s in 0.15s. How far did it move during the strike?

What is the meaning of the phrase "grand unified theories" when applied to particle physics and cosmology?

How long does it take light to reach Earth?

What do you call a drug that increases speed

2. How is frequency described in mathematical terms?

During a summer with little rainfall, your house on a hill slope experiences an interval during which your well runs dry. You have to borrow water from your neighbor who lives downslope from you. Why does your neighbor have water when you don't?

If a force does not act parallel to the resulting displacement, what is the effect on the work done by the force?

A stick is a connection of two same - diameter metal rod 5 cm, and a length of both stick is 0,6m. The thermal conductivity of the first rod 92 cal / s. m.°C, and the second stick 50 cal / s. m.°C.