Suppose y is a function of r and at the same time r is a function of t andr then y is implicitly a function of t y = f[r(t)]. write an expression for the total derivative of y with respect to t, dy/dt in terms of df/dz and dx/dt. consider as an example: andエーat what is dy/dt? your answer should only involvet; you must eliminate

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19

ya te mando la respuesta

total distance/total time

(85 + 82)/(5+3)

167/8

20 just over

the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.