Question

a.) The mass of a raindrop is 8 milligrams. Please express the combined mass of ten raindrops in grams?

b.) In a country fair a vendor sells a pound of strawberry for $ 3.50. What will be the price of 5.50 kg of strawberry? A pound is equal to 454 grams.

c.) In the Death Valley, Nevada, a long stretch of straight road is inclined down about 2.5° with respect to the horizon. What is the change in altitude, if one drives 45 km along the road?

d.) In the Mississippi river banks in Louisiana, a tug boat leaves a harbor and sails 5.0 km in the direction 45° south of east, where the captain stops to pick up a small load of crabs. A short time later, the boat sails 1.0 km in the direction west. What is the magnitude and direction of the resultant displacement from the harbor?

e.)  Two vectors, A →   a n d   B → are added together to form the vector C → = A → + B →. The magnitude of these vectors are related as the following:

C_x = 0, C_y= A Sin 60^o+ B Sin 30^o

Ax and By point in the positive x and y directions, respectively.

Find the orientations of the vectors A →   a n d   B → with respect to the x and y axis?

Answer 1