Physics, 23.06.2020 00:57 chrissycherry
The figure above shows the path of a ball tossed from a building. Air resistance is ignored.
a.
At what point of the ball's path shown in the figure above is the vertical component of the ball's velocity zero?
A
C. C
b. B
d. D
Answers: 3
Physics, 21.06.2019 17:10
Space-time metric ds2= -dt2+at2dx2+bt2dy2+ct2dz2 (a)how does the area of a rectangle with vertices at ( x=0, y=0, z=0 ), (1,0,0 ), ( 0,1,0 ) and (1,1,0 ) changes with time? (b) if a photon moving in the x direction starts from the origin at t=1, when does it reach x=l? (ds=0 for the trajectory of a photon.) (c) the proper time for a particle is defined by cd=ds. what is the proper time for a particle to move along the trajectory ( x(t)=t, y(t)=0, z(t)=0 ) from t=0 to 1 ? what is the condition on the parameter a so that the velocity of the particle never exceeds the speed of light ?
Answers: 2
Physics, 21.06.2019 23:20
Imagine you had to physically add electrons, one at a time, to a previously neutral conductor. you add one electron very easily, but the second electron requires more work. in your initial post to the discussion, explain why this is. also, what happens to the work needed to add the third, fourth, fifth, and subsequent electrons
Answers: 1
Physics, 22.06.2019 07:30
Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?
Answers: 1
Physics, 22.06.2019 10:30
Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.
Answers: 3
The figure above shows the path of a ball tossed from a building. Air resistance is ignored.
a.
Mathematics, 20.02.2021 01:00
Mathematics, 20.02.2021 01:00
Mathematics, 20.02.2021 01:00
Physics, 20.02.2021 01:00
Mathematics, 20.02.2021 01:00
Social Studies, 20.02.2021 01:00
Mathematics, 20.02.2021 01:00
Mathematics, 20.02.2021 01:00
Mathematics, 20.02.2021 01:00
Arts, 20.02.2021 01:00
Mathematics, 20.02.2021 01:00