How do you make a propeller that is strong to make a hovercraft

Two bumper cars collide into each other and each caor jolts backwards what law is this isnt it newtons second law?

Coppedis used in wiring because its metallic bonding gives its_ a high degree of freedom and the material a high conductivity.

Describe the difference between the temp. of a gas and its pressure?

In Hooke's law, what does the x represent? A. the thickness of the spring B. the length of the spring C. the displacement of the spring D. the distance from stretched to compressed E. the equilibrium distance

What is the formula for a molecule containing three Calcium atoms (Ca) and three Chlorine atoms (CI) ? O3Caci cacla CazCl3 O CA₃CL3

A Find the magnitude of the angular momentum of the second hand on a clock about an axis through the center of the clock face. The clock hand has a length of 15.0 cm and a mass of 6.00 g.

A geologist finds ripples preserved in ancient sedimentary rock that look just like ripples made by water in mud. He concludes that there was once water in that location that created the ripples. Why is this conclusion reasonable?

In science what is the requirement of doing work?

What Fitness Gram test is assessing your cardiovascular endurance?

A graph titled Position versus time for with horizontal axis time (seconds) and vertical axis position (meters). A straight blue line runs with an upward slope from 0 seconds 3 meters to 4 seconds 15 meters. The starting position of this object is m.