How can an object have no speed but still be accelerating

In the following reaction, which substance is the precipitate? (NH4) 2SO4 (aq) + Ba (NO3) 2 (aq) BaSO4 (s) + 2NH4NO3 (aq) (NH4) 2SO4 Ba (NO3) 2 BaSO4 NH4NO3

You are given aqueous solutions of six different substances and asked to determine whether they are strong, weak, or nonelectrolytes. Describe how you could test the solutions.

Your science class decides to conduct an experiment to learn more about ice. You set one ice cube on the counter at room temperature, and another, same-sized ice cube in the class refrigerator.

When a resistor is connected to a 12-V source, it draws a 185-mA current. The same resistor connected to a 90-V source draws a 1.25-A current. (a) Is the resistor ohmic? Justify your answer mathematically.

Qué le sucede a la intensidad de la luz de cada bombillo en un circuito en serie si agregas más bombillos al circuito?

Why do responsible consumers use credit and credit cards?

According to Ptolemy's model of the movement of celestial bodies, A. the sun is the center of the universe. B. the earth rotates around the moon. C. planets orbit in circular paths around the earth. D. the earth rotates around the sun.

What is an organ that has villi to absorb the nutrients

Assume you are a Medieval knight attacking a castle with a cannon. The ball leaves the cannon with a speed of 47.7 m/s. The barrel's angle with respect to the ground is 43.

0.005 kg of copper was heated from 20°C to 80°C. How much energy was used to eat Cu? (Specific heat capacity of Cu is 385 J/kg °C)