While traveling in your car at 24 [m/s], you find that traffic has stopped 50 [m] in front of you. Will you smash into the back of the car stopped in front of you? Your reaction time is 0.80 [s] and the magnitude of the car’s acceleration is 8.0 [m/s/s] after the brakes have been applied. List all the assumptions you make.

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

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explanation:

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it

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