Match the descriptions below to either a spring tide or a neap tide. -smallest tidal range
-highest high tides and lowest low tides
-occur during quarter moons
-occur during a new moon and full moon
-largest tidal range occur when the Sun, Earth, and Moon are at 90-degree angles
-occur when the Sun, Earth, and Moon are aligned
-lowest high tides and highest low tides

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

double the distance = divide strength by 4

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y