Homework Statement
1.Hibernation is a state of regulated hypothermia, lasting several days or weeks, that allows animals to conserve energy during the winter, During hibernation animals slow their metabolism to a very low level, with body temperature and breathing rates lowered, gradually...
Homework Statement
Express cos^6(x) in a form that does not involve powers of trig functions
Homework Equations
idk actually...binomial theorem? algebra? lol
The Attempt at a Solution
ok, so i realized that it can be expressed as (cos^2(x))^3
and that can be ((cos(2x) +...
Homework Statement
A 200kg weather rocket is loaded with 100kg of fuel and fired straight up. It accelerates upward at 34m/s^2 for 32s , then runs out of fuel. Ignore any air resistance effects.
how long is the rocket in the air?
Homework Equations
d=Vit +1/2at^2
Vf=Vi + at
V=d/t...
i see your point, but how are you supposed to get the distance if we only have 1 variable for david? do i have to calculate it in conjunction with Linda's acceleration? but I'm just confused on which equation you would use for that.
Homework Statement
theres one thing i don't get about this problem
"David is driving at a steady 30/s when he passes Linda, who is sitting in her car at rest. Linda then begins to accelerate at a steady 2m/s^2 at the instant David passes her"
How far does tina drive before passing him...
Homework Statement
A 5kg block slides down an inclined plane at constant velocity. If the angle of inclination is 22 degrees, find the coefficient of friction.
Homework Equations
F=ma
trig
The Attempt at a Solution
I'm only able to find the normal force, i suppose i could also use...
I found the speed of car a by using d=1/2aT^2 i used the acceleration and 60sec and found the distance to be 1350m and then divided that by 60sec to find the velocity of 22.5
but it's the distance that's throwing me off
Homework Statement
Car A accelerates from rest at 0.75m/s^2 for 1 minute. After this Car A cruises at a constant speed. Car B accelerates from rest at the same time at 0.1m/s^2. When will car B catch up with Car A? What distance have they traveled and what is the final speed of each car...
Homework Statement
"a concave mirror is placed horizontally on the ground with a focal length of 1 meter, a boy sitting on a tree above the mirror drops a 7cm diameter styrofoam ball right over the mirror 3 meters high, determine when the image will be the same size of the ball"
Homework...