Whta is the mechanical advantage when the effort force is 20 and the resistance force is 5

Why is a baby safer in a backward facing car seat in the event of a front-end car collision?

If someone were to pass you at 90% the speed of light, what would happen?

7. Which is the best example of a hypothesis? Water changes into steam if it is boiled. If water is boiled, it will turn into steam. If the temperature of water is increased, then it will change into steam.

Mars, which has a radius of 3.4 * 106 m and a mass of 6.4 * 1023 kg, orbits the Sun, which has a mass of 2.0 * 1030 kg at a distance of 2.3 * 1011 m. Which is greater, the tangential speed of Mars's rotation or revolution?

An can hold a greater volume of water than a mug

Ariella drove 40 miles to see her cousin. The trip took Ariella 2 hours. Then drove from her cousins house to a store for 30 miles. It took Ariella to hours to Ariella to arrive at the store. What was the average speed of the trip

A meandering river is flowing in a broad, alluvial valley and the river is silt-laden but also moves sand and a small amount of gravel. The government decides to build a dam across the valley for power and flood control.

The Sun 1. Sara has made this list to summarize what she learned in science class today: 1. Core 2. Radiation zone 3. Convection zone What is the best title for her list? a. The Layers of the Interior of the Sun b. The Layers of the Sun c.

Jack rolled a marble down a ramp and recorded the potential energy and kinetic energy of the marble at different positions on the ramp, as shown in the table.

Protons are the smallest particle of an element that retains the original Characteristics of the element. True or False