Give one example in which both physical and chemical changes takes places

The length and diameter of a uniformly charged cylindrical shell are 4.20 m and 0.165 m, respectively. What net charge on the surface of the cylindrical shell will produce an electric field of 4.90 ✕ 104 N/C at a radial distance of 25.

What is a scalar? A: a magnitude and a direction B:the direction of a vector C:a quantity that does not indict a direction D:a measurement of displacement

What kind of deformation does a cube of Jell-O exhibit when it jiggles?

Wireless Internet is a way to send and receive Internet data over relatively short distances with low-power transmitters. What type of waves are transmitted for wifi? A) light B) radio C) seismic D) sound

An alloy is an example of what solution

An engineer has the task of producing an aluminum alloy with a density of 3.0 grams per cubic centimeter. She comes up with the perfect alloy and saves a sample of it. Which mass and volume measurements correspond to this sample? 7 g and 2.

What must be your car's average speed in order to travel 235km in 3.25 hours?

At a certain location, the horizontal component of the earth's magnetic field is 2.5 * 10-5 T, due north. A proton moves eastward with just the right speed for the magnetic force on it to balance its weight. Find the speed of the proton.

An acrobatic airplane performs a loop at an airshow. The centripetal acceleration the plane experiences is 14.7 m/s2. If it takes the pilot 45.

Which of the following was NOT an outcome of Bacon's rebellion? A. A more direct focus on the "Indian Problem" B. A more focused plain to isolate black slaves from white servants C.