Physics, 09.04.2020 02:03 mariaf0203
In a downhill ski race surprisingly little advantage is gained by getting a running start. This is because the initial kinetic energy is small compared with the gain in gravitational potential energy even on small hills. To demonstrate this, find the final speed and the time taken for a skier who skies 65.0 m along a 30° slope neglecting friction for the following two cases. (Note that this time difference can be very significant in competitive events so it is still worthwhile to get a running start.)(a) starting from restfinal speedm/stime takens (b) starting with an initial speed of 3.00 m/s final speedm/stime taken s
Answers: 1
Physics, 22.06.2019 03:30
Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.
Answers: 3
Physics, 22.06.2019 07:30
Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories
Answers: 3
In a downhill ski race surprisingly little advantage is gained by getting a running start. This is b...
Mathematics, 24.01.2021 14:00
English, 24.01.2021 14:00
Spanish, 24.01.2021 14:00
Mathematics, 24.01.2021 14:00
Mathematics, 24.01.2021 14:00
English, 24.01.2021 14:00
Arts, 24.01.2021 14:00
Biology, 24.01.2021 14:00
Mathematics, 24.01.2021 14:00
Biology, 24.01.2021 14:00