Question

review
ch-1 and 2 r
what their units are and how to read the math code (including how to
iables with the quantities.
equation: s = δd/δt; a = δs/δt;
solve for δd. solve for δs:
80 sec
3 meters/sec
43 m/s²
45 meters
22 newtons
solve for δt:
the speed equation to calculate speed, distance, and time.
you travel from maine (100 miles away) to vermont (300 miles
away), in 4 hours. calculate your speed.
variables:
formula:
solution:
you’re meeting a friend at 6 p.m. she lives 180 miles away. the
speed limit is 60 mph. when do you need to leave?
variables:
formula:
solution:
scientific method; know what makes a good experiment; know the
difference between an experimental variable and a control variable.
experimental or control variable:
you are studying the af
gas absorption

Explanation:

Answer:

Variables: \( \Delta D = 300 - 100 = 200 \) miles, \( \Delta T=4 \) hours; Formula: \( S=\frac{\Delta D}{\Delta T} \); Solution: \( S = \frac{200}{4}=50 \) mph
Variables: \( S = 60 \) mph, \( \Delta D = 180 \) miles; Formula: \( \Delta T=\frac{\Delta D}{S} \); Solution: \( \Delta T=\frac{180}{60}=3 \) hours, leave at 3 p.m.