A 0.25 kg baseball is in contact with a bat for 0.0075 s and exerts a force or Tour

33 kg.

140 kg.

4600 kg

74,000 kg.

What happens at the anode of an electrolytic cell? a. electrons are given up c. electrons are formed b. electrons are accepted d. electrons form bonds

A mover uses a ramp to push a stereo into the van. The ramp is 3 meters long and 1.5 meters high. What is the ideal mechanical advantage of this ramp?

Which of the following statements regarding heuristics and empiricism is true? A. Heuristics allows a priori theoretical concepts B. Empiricism makes no use of logic C. Empiricism relies solely on theoretical concepts D.

Discuss the formation of thunderstorms and tornadoes

Salt and water is a colloid. True or false?

A tuba creates a 4th harmonic of frequency 116.5 Hz. When the first valve is pushed, it opens an extra bit of tubing 0.721 m long. What is the new frequency of the 4th harmonic? (Hint : Find the original length.)

In the early 19th century Christian Doppler, an Austrian physicist, proposed a theory regarding the properties of a moving source of sound. This is now known as Doppler's law or the Doppler effect. What does this law state?

Legend says that archimedes, in determining whether or not the king's crown was made of pure gold, measured its volume by the water displacement method.

Resonance always causes the object resonating to fall apart or be destroyed. true or false

An insoluble solid material that is produced in double replacement reactions is called