A science student drops a rock a mine shaft. If it takes 3.0 seconds for the rock to hit the bottom of the shaft, what is the speed of the rock just before impact? (Acceleration of the falling object is 9.8 m/s^2

Mr. F has taken in a lot of fluid and put out very little. During this period his heart rate has increased a little and his blood pressure has decreased a little. What do you infer from this? Select the best answer. A.

Briefly describe the layers of the earth.

When the hockey stick hits the ice before hitting the puck during a slap shot, it loads the stick with what kind of energy? (one word)

The siren from a small town fire station is heard at a location 3 kilometers away. If the air temperature is 20°C, at what velocity did the sound travel? 319 m/s 331 m/s 343 m/s 387 m/s

The magnetic field strength within a long solenoid isb=4.0t t, where t is time in seconds. if the radius of thesolenoid is1.0 cm, what is the magnitude of the non-coulomb force that acts on a6.0 c charge a distance6.

Determine the magnitude of the effective value of g⃗ at a latitude of 60 ∘ on the earth. assume the earth is a rotating sphere.

What characteristic of a planet determines the acceleration due to gravity on it?

Which set of terms best defines what affects kinetic energy and potential energy, respectively? position, gravity gravity, position velocity, height height, velocity

You are operating a powerboat at night. You see green and white lights on another boat. What should you do?

How does Newton's second law apply to an "Egg Drop" experiment?