A car travels 400 km in 5 hours. what is the average speed of the car (in km/hr) ?

two objects each weighing 2kg are lifted through the same distance in 4s and 1s respectively. which scenario requires more work?

Water flows through a horizontal coil heated from the outside by high temperature flue gases. as it passes through the coil water changes state from liquid at 200 kpa and 80 c to vapor at 100 kpa and 125 c.

What is jupiters orbital period

A freight car with a mass of 10 metric tons is rolling at 108 km/h along a level track when it collides with another freight car, which is initially at rest.

1. For the sun to be stable, the inward and outward forces within the sun must be in equilibrium. part of the fusion reaction. focused in the core. balanced with temperature and density. 2.

The elements are mostly likely to form more than one type of ion are the

A sample contains 24 g of radioactive isotope. how much radioactive isotope remains in the sample after 2 half-lives? A. 6 g B. 1.5 g C. 12 g D 3 g

2. An elephant puts a force of 30,000 N on its four feet, which have a total area of 0.75 m2. What is the pressure it puts on the ground?

Which of the following is not a benefit of strength training

A car travels 400 km in 5 hours. what is the average speed of the car (in km/hr) ?