A branch falls from a tree how fast is the branch moving after 0.28 seconds

What main topic of dynamics is not addressed in kinematics? a. how things actively change all the time b. inertia c. how position, displacement, velocity, and acceleration are related d. how forces affect motion

Fluids can flow and change shape to fit their containers. Which two states are fluids?

How much work is done by a crane that lowers 1000N of material a distance of 150

A baseball is hit with a speed of 28.0 m/s at an angle of 42.0 ∘. It lands on the flat roof of a 12.0 m - tall nearby building. If the ball was hit when it was 1.

Mention any 5 disadvantages of friction.

A scientist mixes an unknown powder into a beaker of water. He then uses an indicator and finds that the pH of the resulting solution is 8.5. What can he infer from this observation? The unknown powder was acidic.

Which factors affect the resistance of a material? Check all that apply. length currer thickness temperature voltage

Is the air a good conductor or electricity or a good insulator?

Which lists only metalloids? arsenic (As), sulfur (S), and polonium (Po) antimony (Sb), tellurium (Te), and gallium (Ga) boron (B), germanium (Ge), and tellurium (Te) polonium (Po), aluminum (Al), and silicon (Si)

3. A traffic light is suspended by two cables. What should be the angle between the cables (0) so that the tension in each cable will be equal to the weight of the traffic signal light (W=T, = T) ?