Thursday
July 10, 2014

Posts by Aestas


Total # Posts: 14

Statistics
For a population with a mean of (mew) = 50 and a standard deviation of 10, how much error, on average, would you expect between the sample mean (M) and the poulation mean for: a) a sample of n=4 scores b) a sample of n=16 scores c) a sample of n=25 scores Are the sample mean (...

music
So, in G/B, B is the descending bass line under the G chord. The G chord I normally play is 300023. So, is the last string/note played whatever is closest to string 6 or whatever is closest to string 1? Is this an understood rule? I mean how do you decide how to play the desce...

Physics
Two 75.0-kg hockey players skating at 5.25 m/s collide and stick together. If the angle between their initial directions was 140 degrees, what is their speed after the collision? (Let the motion of player 1 be in the positive x-direction and the motion of player 2 be at an ang...

Physics
When a golf club strikes a golf ball, the club is in contact with the ball for about .0016 s. The 45-g ball acquires a speed of 71 m/s. a) What is the magnitude of the impulse applied to the ball? b) Estimate the magnitude of the average force exerted by the club on the ball i...

Physics 2414
A 1000 kg car can accelerate from rest to v = 85 km/hr in a time t = 7.4s. If, instead the power of the car is smaller by a factor of .4 and the car accelerates for the same amount of time, by what factor will the maximum speed decrease?

Physics 2414
The problem I'm having (in general with Physics) is knowing which equation to use. I used the air resistance force = mg, and the answer came out wrong. So I just don't know what I'm doing wrong.

Physics 2414
The problem I'm having (in general with Physics) is knowing which equation to use. I used the air resistance force = mg, and the answer came out wrong. So I just don't know what I'm doing wrong.

Physics 2414
An airplane pilot falls 355 m after jumping from an aircraft without his parachute opening. Fortunately, he lands in a snowbank, creating a crater 1.5 m deep, and survives with only minor injuries. Assuming the pilot's mass is 77 kg and his terminal (maximum) velocity whil...

Music
What does the G/B chord mean, on guitar? Why is it called G/B?

Chemistry 2
The rate constant is 9.50x10^-5 L/mol*s at 195 degrees Celsius and 1.30x10^-3 L/mol*s at 258 degrees Celsius. What is the activation energy of the reaction? I'm not sure what I'm doing wrong here. I found the natural log (ln) of: 9.50x10^-5 = -9.26 1.30x10^-3 = -6.65 a...

Causal Argument Paper
Hello, I am needing help formulating a question for my English class. We are needing to write an ethical/causal argument. I want to relate it to either animal testing or animal hunting. Is this a decent one? "Is it ethical to continue animal experimentation?" "I...

Math
409600

Physics
Each of the following statements has 1, 2, or 3 conceptual flaws. Explain what is wrong with each sentence (I just need help finding a website for this) 1. A rocket moves through space because the exhaust from the rocket's engine pushes against the atmosphere. 2. If an unb...

Psychology
ARe there any different effects of PTSD on men, women, and children? If so, what?

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