4 years ago

A measurement must include both a number blank

1 answer:

8 0

... AND A UNIT .

If I tell you that I have a piece of string that's 71 long, you still have no idea what I'm talking about until I tell you if that's millimeters, centimeters, inches, meters, feet, yards, smoots, kilometers, leagues, miles, furlongs, nanometers, Mach-seconds, chains, parsecs, light years etc.

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Consider a projectile launched with an initial velocity of v0 = 120 ft/s, inclined at an angle, θ with the horizontal. Let us as

Natali [406]

Answer:

How to find the maximum height of a projectile?

if α = 90°, then the formula simplifies to: hmax = h + V₀² / (2 * g) and the time of flight is the longest. ...

if α = 45°, then the equation may be written as: ...

if α = 0°, then vertical velocity is equal to 0 (Vy = 0), and that's the case of horizontal projectile motion.

Explanation:

4 0

3 years ago

What property or properties of a wave determine it's speed?

mash [69]

The properties of the wave don't determine its speed. The properties of the medium do. You can FIND the speed by measuring the wave's frequency and wavelength.

7 0

4 years ago

Give the 7 color harmonies

notsponge [240]

Answer:

Complementary colors.

Split complementary colors.

Analogous colors.

Triadic harmonies.

Tetradic harmonies.

Monochromatic harmonies.

Explanation: