Please help in 5 mintues Which component uses the core muscles of your stomach?

a. Muscular endurance
b. Flexibility
c. BMI
d. Abdominal endurance

Karen is running forward at a speed of 9 m/s. she tosses her sweaty headband backward at a speed of 20 m/s. the speed of the headband, to the nearest whole number relative to a stationary observer watching karen

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?

The space between two 15-in.-long concentric cylinders is filled with glycerin (viscosity = 8.5 × 10-3 lb·s/ft2). the inner cylinder has a radius of 1 in. and the gap width between cylinders is 0.1 in. determine (a) the torque and (b) the power required to rotate the inner cylinder at 180 rev/min. the outer cylinder is fixed. assume the velocity distribution in the gap to be linear.