Amass weighing 4 pounds is attached to a spring whose constant is 2 lb/ft. the medium offers a damping force that is numerically equal to the instantaneous velocity. the mass is initially released from a point 1 foot above the equilibrium position with a downward velocity of 6 ft/s. determine the time at which the mass passes through the equilibrium position. (use g = 32 ft/s2 for the acceleration due to gravity.) correct: your answer is correct. s find the time after the mass passes through the equilibrium position at which the mass attains its extreme displacement from the equilibrium position. incorrect: your answer is incorrect. s what is the position of the mass at this instant? incorrect: your answer is incorrect. ft

falling water hydro = water .. spectcular places these plants are

a.   mass number from atomic number

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.

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.