A student is performing an experiment comparing sound and light waves. The student gathers the
following data.
What conclusion does the student most likely make
based on this data?
Medium
Ice
Water
Steam
Speed of Sound
Temperature
(°C)
0
25
100
Speed of
Sound (m/s)
3200 m/s
1500 m/s
346 m/s
O Light waves always travel the same speed; however,
the speed of sound is determined by the medium
that it travels through.
O All sound waves always have the same energy, so
the temperature of the medium does not affect wave
speed.
O Light needs to vibrate particles, so it travels fastest
in tightly packed solids, while sound does not need a
medium, so it travels fastest in a gas.
O Tightly packed particles in solids slow down the light
waves, however, sound wavesmake particles
bounce into each other, so they travel faster in
solids.
Medium
Speed of Light
Index of
Refraction
1.00
1.33
1.57
Air
Water
Glass
Speed of Light
(m/s)
2.99 x 108
2.26 x 10
1.91x103

emily ruth's annual premium is $1058.50

step-by-step explanation:

emily ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.

from the given table,

for females, the age of a male 3 years younger should be used.

so, we have to check for 24 year male for 20 year endowment.

it is 42.34 for every $1000 face value.

for a face value of $25000,

it is 25 * 42.34 = $1058.50

∴ emily ruth's annual premium is $1058.50

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.

uio

explanation: