What are ph levels? Why are they important? What's there acceptable level/condition?

What is the temperature of the lithosphere?

A ball was dropped and had a mass of. 2 kg and was falling with a force of 2 N, what was its acceleration?

A bicycle consists of which types of simple machines? Check all that apply.

lug-in transformer supplies 9.00 V to a video game system. (a) How many turns are in its secondary coil if its input voltage is 120 V and the primary coil has 384 turns? 1742 Incorrect: Your answer is incorrect.

If electrical energy costs 7¢/kW•h, calculate the cost of running a 15 W scanner for 10 min. (You will need to convert 10 min into hours.)

1. Using Pj = e^-BE/Z in the Gibb's form for the entropy, show that F = kb Tln (Z), where F = U - TS is the Helmholtz free energy. Here Z= e^-BE is the canonical partition function ...

Modern oil tankers weigh over a half-million tons and have lengths of up to a quarter of a mile. Such massive ships require a distance of 5.0 km (about 3.0 mi) and a time of 22 min to come to a stop from a top speed of 26 km/h.

Suppose a yo-yo has a center shaft that has a 0.232 cm radius and that its string is being pulled. If the string is stationary and the yo-yo accelerates away from it at a rate of 1.50 m/s 2, what is the angular acceleration of the yo-yo?

How far into editing our human genes?

Which electromagnetic wave has the shortest wavelength? (A. Radio waves b. X-rays c. infrared rays or d. Visible light)