A device consists of eight balls each of mass 0.4 kg attached to the ends of low-mass spokes of length 1.8 m, so the radius of rotation of the balls is 0.9 m. The device is mounted in the vertical plane. The axle is held up by supports that are not shown, and the wheel is fre...
CHEM QUICK HELP
Which of the following are correct statements? (Could be as many as 4) 1. Standard pressure is 101.3 atmospheres 2. One mole of gas contains 22.4 representative particles 3. One mole of gas always occupies 22.4 liters regardless of other conditions 4. Solids can always be grea...
Dad baked a batch of cookies. My brother ate half my mom ate a fourth of the batch. Dad ate 3 and I ate the last two. How many cookie did dad bake? PLEASE help me figure this problem out?
A population of animals oscillates between a low of 1098 on January 1 (t = 0) and a high of 2344 on July 1 (t = 6). (a) Find a formula for the population, P, in terms of the time, t, in months.
A car has a unibody-type frame and is supported by four suspension springs, each with a force constant of 36100 N/m. The combined mass of the cars frame and everything inside it (the engine, the seats, the passengers, etc.) is 1270 kg. Because of worn-out shockabsorbers,...
A particle hangs from a spring and oscillates with a period of 0.2 s.If the mass-spring system remained at rest, by how much would the mass stretch it from its normal equilibrium position? The acceleration of gravity is 9.8 m/s^2
A mass of 0.22 kg is attached to a spring and is set into vibration with a period of 0.10 s. What is the spring constant of the spring? Answer in units of N/m
What volume of 1.0 M HCl would react completely with 0.20 grams of NaC2H3O2*3H2O? It sounds like an equation I would set up as this and would use mole ratios to calculate the answer: HCl + NaC2H3O2*3H2O --> But I am confused as to what I would put as the products, let alone...
Estimate the uncertainty in the speed of an oxygen molecule if its position is known to be +/- 3 nm. The mass of an oxygen molecule is 5.31 x 10^26 kg.