Use the two-way table of data from another student survey to answer the followin

An 80.0-kg skydiver jumps out of a balloon at an altitude of1000 m and opens the parachute at an altitude of 200 m. (a) Assuming that the total retarding force on the diver is constant at 50.0 N with the parachute closed and constant at 3600 N with the parachute open, what is the speed of the diver whenhe lands on the ground? (b) Do you think the skydiver will be injured? Explain. (c) At what height should the parachute be opened so that the final speed of the skydiver when he hits the ground is 5.00m/s? (d) How realistic is the assumption that the total retarding force is constant? Explain.

A rifle with a weight of 30 N fires a 5.0 g bullet with a speed of 300m/s. (a) Find the recoil speed of the rifle. (b) If a700 N man holds the rilfe firmly against his shoulder, find there coil speed of the man and his rifle.

Problem: A 0.500kg block attached to a spring with the length 0.60m and force constant k=40.0 N/m is at rest with the back of the block at point A on a frictionless, horizontal airtable. The mass of the spring is negligible. You pull the block tothe right along the surface with a constant horizontal forceF=20.0-6N.
Questions:
A.) What is the blocks

The rotor (flywheel) of a toy gyroscope hasmass 0.140 kg. Its moment of inertia about its axis is . The mass of the frame is 0.0250 kg. The gyroscopeis supported on a single pivot javascript:void(0); with its center of mass a horizontaldistance of 4.00 cm from the pivot. The gyroscope is precessing ina horizontal plane at the rate of one revolution in 2.20 s. Find the upward force exerted by thepivot. Find the angular speed with which the rotoris spinning about its axis, expressed in rev/min. Comments

A chemist in an imaginary universe, where electrons have a different charge than they do in our universe, performs the Millikan oil drop experiment to measure the electrons

The emissivity of galvanized steel sheet, a common roofing material, is ${\displaystyle ϵ=0.13}$ at temperatures around 300 K, while its absorptivity for solar irradiation is ${\displaystyle {\alpha }_S=0.65}$. Would the neighborhhod cat be comfortable walking on a roof constructed of the material on a day when ${\displaystyle G_S=750\frac{W}{m^2},T_{\mathrm{\infty }}={16}^{\circ }C}$, and ${\displaystyle h=7\frac{W}{m^2}\cdot K}$? Assume the bottom surface of the steel is insulated.

Which of the following statements are​ true?
i.If f(n) satisfy the requirements of the integral test, then $\sum _{n=1}^{\mathrm{\infty }}{a}_n={\int }_1^{\mathrm{\infty }}f(x)dx$.
ii. The series $\sum _{n=1}^{\mathrm{\infty }}\frac{1}{n^p}$converges if p > 1 and diverges if $p\le 1$​​​​​​​.
iii. The integral test does not apply to divergent sequences.