Vectors are used to describe many physics concepts. any vector is completely defined with just 2 properties. which of the following statements is true

How does the density of the Earth's core compare to the other layers of the Earth? A) The core is the densest layer. B) The core is the least dense layer. C) The core is only less dense than the crust. D) The core is only less dense than the mantle.

Where would a new neuron come from

A fisherman is fishing from a bridge and is using a "42.0-N test line." In other words, the line will sustain a maximum force of 42.0 N without breaking.

A scientific law states that planets move in elliptical orbits around stars. Which of these statements is correct about this law? It is not strengthened by data and observations. It provides explanations for observations which can change.

Gravity is a force of attraction between objects that is due to their weight and height between one another. a. True b. False

When water vapor condenses on the inside of a window, the window becomes

Try this out. Use a calculator! We can use the formula KE=0.5m*V^2. To find the kinetic energy (KE) of a payload of mass (m) 100 kg as it flies through the air at the velocity (v) of 55 m/s. (Multiply 0.5 x the mass x velocity squared.

Which group of measurements is the most precise? A) 2 g, 3 g, 4 g B) 2 g, 2.5 g, 3 g C) 2.0 g, 3.0 g, 4.0 g, 5.0 g D) 2.0 g, 3.0 g, 4.0 g

A 946.4 kg (2083 lb) car is moving at 14.8 m / s (33.0 mph). Calculate the magnitude of its momentum.

How do the positions of the hot and cold water affect the speed of convection