Write an expression for the magnitude of the normal force, fn, acting on the block, in terms of f2 and the other variables of the problem. assume that the surface it rests on is rigid.

What is the net force acting on an object?

You are conducting a cross using Drosophila melanogaster. The results of your cross indicate that the recombination frequency is very high. How do you feel about the accuracy of your map unit calculations based on this cross?

The physical phenomenon that MRI is based on does not depend on ionizing radiation, but on other properties of atoms instead. What is this phenomenon called? gamma-ray bursts positron emission X-ray propagation nuclear magnetic resonance

If you're lying on a raft and you notice the number of waves that go past the rest increases you also find that the distance between each crest a increases b decreases c remains the same d spreadout

A railroad car with a mass of 30,000 kg is moving at 2.0 m/s when it runs into an at-rest freight car with an equal mass. the cara lock together. what is their final velocity? A. 2.0 m/s B. 0.5 m/s C. 60,000 kg-m/s D. 1.0 m/s

How many eclipses normally occur each year? a. 2 b. 5 c. 7 d. 4

At what distance from equilibrium is the energy of a sho half kinetic and half potential?

Why can you not measure the volume of water in the measuring cylinder accurately unless you look straight at the scale?

How can biologic weathering result in chemical weathering? A. Bacteria release acids and other agents that break down rock B. Large herds temple rocks and break up soil C. Root loosen soil and break rock

Volcanic eruption affects water drainage but what may that result in