subject
Physics, 05.09.2019 05:30 enchantednights

Aball is dropped from rest from the top of a building and strikes the ground with a speed vf. from ground level, a second ball is thrown straight upward at the same instant that the first ball is dropped. the initial speed of the second ball is vo = vf, the same speed with which the first ball will eventually strike the ground. ignoring air resistance, decide whether the balls cross paths at half the height of the building, above the halfway point, or below the halfway point. give your reasoning.

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 04:50
Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k
Answers: 2
question
Physics, 22.06.2019 08:00
The arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s . 1.) a. precipitation b. water vapor c. icy debris 2.) a. gravitational compression b. biochemical cycling c. radiogenic heating 3.) a, gravity b. magnetic field c. heat energy for plato
Answers: 3
question
Physics, 22.06.2019 18:30
Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)
Answers: 3
question
Physics, 22.06.2019 19:40
22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?
Answers: 1
You know the right answer?
Aball is dropped from rest from the top of a building and strikes the ground with a speed vf. from g...
Questions
question
Mathematics, 25.01.2022 02:40
question
Spanish, 25.01.2022 02:40
question
Mathematics, 25.01.2022 02:50
Questions on the website: 13722361