Need help asa Thanks + BRAINLIST only if you know correct answer

1.Electromagnetic waves are
a. forms of matter
b. forms of space
C. longitudinal waves
d. transverse waves

2. A filter with vertical slits allows only waves that vibrate from side to side to pass
through
a. True
b. False

3.An electromagnetic wave is made up of vibrating an electric and magnetic fields.
a. True
b. False

Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s