Which of the following elements is among the alkali metals? Question 12 options: Magnesium (Mg) Tin (Sn) Lead (Pb) Potassium (K)

Give an example of a food chain with at least 3 organisms

What's an example of radiation in the kitchen

A hummingbird can flutter its wings 4,800 times per minute. What is the frequency of wing flutters per second?

Which best describes Einstein's new explanation of light and gravity? Einstein created a new law, because his explanation of the interaction between light and gravity provided unity amongst many facts.

What makes the subject of star formation so difficult and complex?

A car is moving with a velocity (3.0 m/s) € x ˆ + (1.0 m/s) € y ˆ and 3.0 seconds later its velocity is (6.0 m/s) € x ˆ - (3.0 m/s) € y ˆ. What is the direction of the average acceleration of the car?

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.