Luma

I am maybe overthinking this, but what is the lim as n-> infinity of |(n+1)/(n+2)| ? I am trying to use the ratio test to find interval of convergence for the infiinite series (n/n+1)((-2x)^(n-1)) so i did the limit of |(n+1)/(n+2)| but i am wondering if...

A truck travels beneath an airplane that is moving 140 Km/h at an angle of 15 degree to the ground. How fast must the truck travel to stay beneath the airplane? Answer in units of Km/h.

A girl delivering newspapers travels 3 blocks west, 3 blocks north, then 6 blocks east. What is the magnitude of her resultant displacement? Answer in units of blocks.

Tammy leaves the office, drives 21 Km due north, then turns onto a second highway and continues in a direction of 31 degree north of east for 87 Km. What is her total displacement from the office? Answer in units of Km.

One of the fastest recorded pitches in major-league baseball, thrown by Nolan Ryan in 1974, was clocked at 96.8 mi/h. The acceleration of gravity is 32 ft/s^. If a pitch were thrown horizontally witha velocity of 96.8 mi/h, how far would the ball fall ver...

A dense plastic toy of mass 1.8 kg is floating just beneath the surface of a pond. What is the buoyant force on it? Answer in units of N.

A piece of metal weighs 51.8 N in air, 37.2 N in water, and 42.6 N in an unknown liquid. Find the density of the metal. Answer in units of kg/m^3 Find the density of the unknown liquid. Answer in units of kg/m^3

A 1.8 kg rectangular air mattress is 2.46 m long, 1.23 m wide, and 0.189 m thick. What mass can it support in water before sinking? Answer in units of kg.

At what angle is her displacement? consider east to be 0 degree and north 90 degree Answer in units of degree

How far above the top of fence will the ball pass? Consider the diameter of the ball to be negligible. Answer in units of m. What is the vertical component of the velocity when the ball reaches the plane of the fence? Answer in units of m/s.

The troglodyte war continues, and a particularly offensive member of colony B is located 120 m below the top. At what speed must a bomb be rolled to get him? Answer in units of m/s.

This is nuts... I think staff on this site should have a marker next to their name so that they can't be impersonated like that.