Sound travels as a transverse wave in air and other materials
Indicate whether the statement is true or false
FALSE
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An object is submerged in a swimming pool and of course the water exerts a buoyant force on the object. Suppose a thousand gallons of oil is spilled into the pool and now floats above the water
How is the buoyant force on the object changed by the overlying oil?
A tank holds a 1.44-m thick layer of oil that floats on a 0.96-m thick layer of brine. Both liquids are clear and do not intermix
Point O is at the bottom of the tank, on a vertical axis. The indices of refraction of the oil and the brine are 1.40 and 1.52, respectively. A ray originating at O crosses the brine-oil interface at a point 0.60 m from the axis. The ray continues and emerges into the air above the oil. What is the angle that the ray in the air makes with the vertical? A) 54° B) 51° C) 60° D) 48° E) 57°
The main gas in soil is
What will be an ideal response?
Comets are composed of ____
a. rock and dust b. rock and metals c. ice and metals d. ice and dust e. rock and gas