Q.3: a spaceship and an asteroid are moving in the same direction away from earth with speeds of 0.77c and 0.41c, respectively. what is the relative speed between the spaceship and the asteroid?

A110-pound person pulls herself up 4.0 feet. this took her 2.5 seconds. how much power was developed? 0.13 hp 0.32 hp 2.0 hp 3.1 hp

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?

Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)