Formula for Velocity = DISTANCE traveled/TIME to travel distance + direction
For this one, we can use mph(miles per hour) as unit.
v = 1,000 miles / 336 hours (2 weeks = 24 hours x 14 days = 336 hrs)
= 2.98 mph North
or we can use kph (kilometers per hour)
v = 1609.34 km / 336 hours (1 mile = 1.60934 km)
= 4.79 kph North
Snell's law is defined as “The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant, for the light of a given colour and for the given pair of media”.
Answer : The specific heat of aluminum is, 
Solution : Given,
Heat absorbs = 677 J
Mass of the substance = 10 g
Final temperature = 
Initial temperature = 
Formula used :
or,
Q = heat absorbs
m = mass of the substance
c = heat capacity of aluminium
= final temperature
= initial temperature
Now put all the given values in the above formula, we get the specific heat of aluminium.
Therefore, the specific heat of aluminum is,
Answer:
Stress = F / A force per unit area
A = 3.00 cm^2 = 3 E-4 m^2
F = 2.4E8 N/m^2 * 3E-4 m^2 = 7.2E4 N max force applied
F/3 = 2.4E4 N if force not to exceed limit (= f)
f = M a
a = 2.4 E4 N / 1.2 E3 kg = 20 m / s^2 about 2 g
