Which of the following groups of elements are included in the main group of elements?

A boat travels 3 m/s in a direction that is 40 degrees north of west. If the boat travels for 120 seconds, how far did it go in the westward direction? A - 276 m B - 231 m C - 92 m D - 31 m

Which of the following electromagnetic waves has the shortest wavelength? A. visible light waves B. ultraviolet waves C. microwaves D. infrared waves

Why are gases poor conductors of heat? A. Particles in a gas do not collide. B. Particles in a gas collide more often. C. Particles in a gas collide less often.

In a circuit, a 100.-ohm resistor and a 200.-ohm resistor are connected in parallel to a 10.0-volt battery. Determine the power dissipated by the 100.-ohm resistor. Calculate the current in the 200.-ohm resistor.

When two stars are bound together gravitationally and orbit a common mass, they're known as A. constellations. B. meteoroids. C. galaxies. D. binary stars.

Children in a tree house lift a small dog in a basket 4.00 m up to their house. If it takes 187 J of work to do this, what is the combined mass of the dog and basket?

What happens to the speed of the particles if the temperature is increased

A 65-year-old male enters the hospital with high blood pressure, damaged lungs, low blood-oxygen concentration, and throat cancer. What are all of these symptoms associated with?

At a certain factory, 340 kg crates are dropped vertically from a packing machine onto a conveyor belt moving at 1.00 m/s. (A motor maintains the belt's constant speed.) The coefficient of kinetic friction between belt and crate is 0.400.

A hydraulic lift is used to lift a heavy box that is pushing down on a 1.5-m2 piston with a force of 1,700 N. What force needs to be exerted on a 0.12-m2 piston to lift the box?