Which metals Is mostly likely to form more than one kind of positively charged ion

A sodium

B barium

C nickel

D magnesium

Finding spring constant given displacement of spring and distance traveled by a cart

Using Hooke's law, Fspring=kΔx, find the elastic constant of a spring that stretches 2 cm. when a 4 Newton force is applied to it. A) 1/2N/cm B) 2N/cm C) 4N/cm D) 8N/cm

Can an object have zero acceleration and nonzero velocity?

Cool air foot forms with low pressure or high pressure

What is the net force of an object travelling at a constant velocity of 50 miles per hour south

Which is a characteristic of an electromagnetic wave?

What does the ozone layer absorb? a. Microwaves c. UV radiation b. X-rays d. Infra-red radiation

An object is undergoing shm with period 0.900 s and amplitude 0.320 m. at t = 0 the object is at x = 0.320 m and is instantaneously at rest. calculate the time it takes the object to go (a) from x = 0.320 m to x = 0.160 m and (b) from x = 0.

Your friend states in a report that the average time required to circle a 1.0-mi track was 49.325 s. This was measured by timing 10 laps using a stopwatch with a precision of 0.01 s. Do you believe his results are reliable? Explain.

The forklift exerts a 300.0 N force on the box and moves it 15.0 m into the air. How much work does the forklift do? A. 500 J B. 1.50 * 10^3 J C. 4.50 * 10^3 J D. 0.00 J