Maxx

For anti-ballistic missile system, the time of flight tf is determined by the initial speed v0 of the missile and the range R. What is the time (in minute) of the flight tf available to kill an incoming intercontinental ballistic missile launched from 105...

14 years ago

A simple Atwood’s machine uses a massless pulley and two masses m1 and m2. Starting from rest, the speed of the two masses is 4.1 m/s at the end of 7.6 s. At that time, the kinetic energy of the system is 86 J and each mass has moved a distance of 15.58 m...

13 years ago

A 0.9 kg object that stretches a spring 2.5 cm from its natural length when hanging at rest oscillates with an amplitude of 8.1 cm. Find the total energy of the system. The acceleration due to gravity is 9.81 m/s2. Answer in units of J

13 years ago

A shirt cost $97. Your mom and dad each gave you $50. Your change is $3. You give $1 to your mom and $1 to your dad, then you keep the last dollar. You owe each of them $49, then you you add your dollar. Where does the extra dollar go.

10 years ago

the atomic spectrum of lithium has a strong red line at 670.8 nm. what is the energy of each photon of this wave length? What is the energy of 1 mole of these photons??

9 years ago

Calculate the maximum wavelength of light capable of removing an electron for a hydrogen atom from the energy state of n=4 if it requires an energy of at least 1.36 x10^-19 J to do this. Please help with formulas to use?

9 years ago

Calculate the maximum wavelength of light capable of removing an electron for a hydrogen atom from the energy state of n=4 if it requires an energy of at least 1.36 x10^-19 J to do this. I just want to know how to find the second n value so i can solve wi...

9 years ago

How do i find the asymptotes? y=(1/x-4)+3

9 years ago

How do i solve for b, 5=2pi/b

9 years ago

What mass of naoh is neutralized by 43.55ml of 0.145m H2SO4?

9 years ago

Given cos a = -4/7 and sin b = 3/5, where a and b are not in quadrant 2, find the coordinates of p(a+b)?

9 years ago

Find the exact value of: (1-sin^2 pi/2)/(cos^2 28 degrees + sin^2 28 degrees)

9 years ago

Prove left hand side equals right hand side: (sinx)/(1-cosx)=(1+cosx)/(sinx)

9 years ago

how do i get left hand side to equal right hand side?? ((Cot^2B)/(Cos^2B))-Cot^2B=1

9 years ago

How do i write this as a single trigonometric function?? (2sin pi/12)(cos pi/12)

9 years ago

Solve: 19^(x-5)=3^(x+2) i know you then go: (x-5) log19= (x+2) log3 i just don't know what goes after?

9 years ago

how do i solve log(8y-7)/logy

9 years ago

The probability of hitting a target is 90%. what is the probability of missing the target 3 times? i have (1/10)x3

9 years ago

Forty tickets are numbered consecutively from 1-40 three tickets are chosen at random and not replaced. whats the probability that two of the tickets are even?

9 years ago

for composite functions i have a graph of f(x) and g(x) and i have to find (f⋅g)(0) so is that when f and g is 0 on the x or y?

9 years ago

$ 30,926.85

10 years ago

So an asymptote would be X=2.75

9 years ago