The weight of an object is measured in the air to be 5kN .the object is immersed in water and its apparent
weight is measured to be 2000N. How about the object
A. it will sink
B. it will rise up through the water
C. it will float
D. none

Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?

What’s #16 asking and how do i solve it?

An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 ˚f and standard atmospheric pressure, what is the value of the mach number?