Can i get some on these two questions
a hiker walks 50 miles 55 degrees south of west. how far did she walk west?
select one:
a. 28.7 miles
b. 40.9 miles
c. 35.4 miles
d. none of the above
a ball has a velocity of 25 m/s at 37 degrees. what is the horizontal component of the velocity?
select one:
a. 15 m/s
b. 18 m/s
c. 20 m/s
d. 25 m/s

Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec

Acommon technique in analysis of scientific data is normalization. the purpose of normalizing data is to eliminate irrelevant constants that can obscure the salient features of the data. the goal of this experiment is to test the hypothesis that the flux of light decreases as the square of the distance from the source. in this case, the absolute value of the voltage measured by the photometer is irrelevant; only the relative value conveys useful information. suppose that in part 2.2.2 of the experiment, students obtain a signal value of 162 mv at a distance of 4 cm and a value of 86 mv at a distance of 5.7 cm. normalize the students' data to the value obtained at 4 cm. (divide the signal value by 162.) then calculate the theoretically expected (normalized) value at 5.7 cm.

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?