You are in a spaceship (mass m) orbiting earth in a circular orbit at radius r. you need to complete a spacewalk to investigate possible damage on the ship from collision with debris in orbit. your intention is to tether yourself to the ship with a cord of length l, such that the cord is taut and the ship is between you and the earth (this way, you can get a good look at the damage). you have a mass of m. we will find an expression for the minimum tension needed to keep you tethered to the ship. (a) write f = ma for the ship. write f = ma for you while on your spacewalk (b) given that you and the ship both orbit the earth in the same time period, find a relation between your linear speed and the ship's. (c) find an expression for the tension in terms of the variables given. (d) (optional) simplify the result under the assumptions that i

Aplane flies a distance d from west to east at a constant speed vp , with respect to the air in a time twe . on the return trip, the plane flies a distance d from east to west at a constant speed vp , with respect to the air in a time tew . on both trips the wind blows from west to east at a constant speed va , with respect to the ground 1) what is tew in terms of vp, va, and d, as needed? tew=dvp tew=dvp+va tew=dva tew=dvpâ’va tew=12dvp tew=12dvp+va tew=12dvpâ’va your submissions: b submitted: saturday, january 26 at 6: 49 pm feedback: feedback will be given once all questions have been attempted and the grade cluster button has been pressed. 2) what is twe in terms of vp, va, and d, as needed? twe=dvp twe=dvp+va twe=dva twe=dvpâ’va twe=12dvp twe=12dvp+va twe=12dvpâ’va your submissions: d submitted: saturday, january 26 at 6: 49 pm feedback: feedback will be given once all questions have been attempted and the grade cluster button has been pressed. 3) assuming d = 2300 miles, vp = 400 miles/hr, and twe = 4 hours, what is va, the speed of the wind with respect to the ground? va = 100 miles/hr va = 575 miles/hr va = 200 miles/hr va = 175 miles/hr va = 975 miles/hr 4) once again, assuming d = 2300 miles, vp = 400 miles/hr, and twe = 4 hours, what is tew, the time it takes the plane to fly a distance d miles from east to west? tew = 5.75 hours tew = 11.5 hours tew = 7.67 hours tew = 8 hours tew = 10.2 hours

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?

Decreased sensitivity to an unchanging stimulus is known as