What type of lens is used to make objects appear smaller and clearer convex or concave?

In a inverse relationship, when one variable increases, the other

Compare exothermic reactions and endothermic reactions. Give at least one similarity and one difference.

How does Coulomb's law relate to test charges?

The velocity of a particle which moves along the s-axis is given by s=40-3t^2 where t is in seconds. Calculate the displacement delta s of the particle during the interval from t=2 to t=4

1. It takes a 25 N force to push a 250 N box across the floor. a. How much work is done against friction when the box is moved 2 m across the floor? b. How much work is done against gravity when the box is lifted 2 m above the floor?

What is the density of an unknown metal that has a mass of 158 g and a volume of 20 ml

An electron is located on the x axis at x0 = - 9.31*10-6 m. Find the magnitude and direction of the electric field at x = 9.39 * 10-6 m on the x axis due to this electron.

Earth attracts a person with a gravitational force of 7.0 * 102 newtons. What is the magnitude of the force with which the individual attracts Earth? 3.0 * 10² newtons 7.0 * 10² newtons 8.5 * 10² newtons 9.8 * 10² newtons

The productive cycle of a human is usually regulated by

Winston stands on the edge of a building's flat roof, 12 m above the ground, and throws a 147.0-g baseball straight down. the ball hits the ground at a speed of 18 m/s. what was the initial speed of the ball?