A mass on a spring vibrates in simple harmonic motion at a frequency of 4.0 Hz and an amplitude of 4.0 cm. If a timer is started when its displacement is a maximum (hence x = 4 cm when t = 0), what is the speed of the mass when t = 3 s?

What is the angular momentum of the disk about the axle?

What would happen if you touched the knob of a positively charged electroscope with a negatively charged object

If, in general, r were calculated as r = v/i, which circuit arrangement in part a of the experiment would have the smallest error?

What does the p mean in 1s22s22p63s?! o the p shell o one of the 4 sub-shells o always represents the outermost shell

In a body-centered cubic structure, every atom (except those on the surface) has eight neighbors. which arrangement of balls serves as the best model for this structure?

When lava cools, what type of Rock forms?

A uniformly charged conducting sphere of 1.1 m diameter has a surface charge density of 6.2 µC/m2. (a) Find the net charge on the sphere. (b) What is the total electric flux leaving the surface of the sphere?

A blow-dryer and a vacuum cleaner each operate with a voltage of 120 V. The current rating of the blow-dryer is 12 A, while that of the vacuum cleaner is 5.7 A. Determine the power consumed by (a) the blow-dryer and (b) the vacuum cleaner.

4. A 40 kg child and a 30 kg child want to balance themselves on a 4 meter, 50 kilogramn see-saw. Where should the fulcrum be placed?

A 2-kg object is dropped from a height of 1000 m. What is the force of air resistance on the object when it reaches terminal velocity