A) julie is running to the right at 5 m/s, as shown in the 1st figure. balls 1 and 2 are thrown toward her at 10 m/s by friends standing on the ground. according to anita, what's the speed of the two balls? b) julie is running to the right at 5 m/s, as shown in the 2nd figure. balls 1 and 2 are thrown toward her by friends standing on the ground. according to julie, both balls are approaching her at 10 m/s. according to julie's friends, what's the speed of the two balls? give explanations and step-to-step solution and calculus. you!
Answers: 1
Physics, 22.06.2019 11:30, alupton4887
Arocket starts from rest and moves upward from the surface of the earth. for the first 10.0 s of its motion, the vertical acceleration of the rocket is given by ay = 12.80 m/s32t, where the +y-direction is upward. (a) what is the height of the rocket above the surface of the earth at t = 10.0 s? b) what is the speed of the rocket when it is 325 m above the surface of the earth?
Answers: 3
Physics, 22.06.2019 12:00, P4thing
Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?
Answers: 3
Physics, 22.06.2019 13:00, caleb1009
At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.
Answers: 3
A) julie is running to the right at 5 m/s, as shown in the 1st figure. balls 1 and 2 are thrown towa...
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