An electric bell is kept under a bell jar in which a vacuum has been created slowly air is introduced in to the jar. what will happed to the sound of electric bell?

What is the following product? Assume x≤0 and y≤0 √5x^8y^2 * √10x^3 * √12y 3x^5y√3xy 10x^5y√6xy 3x^3y√3x^2y^2 10x^3y√6x^2y^2

Does every scientific investigation start with an observation

11.76 cm² into two significant figures and include the appropriate units

A tennis ball has a mass of 57.5 g, how much does it weigh? (do a conversion)

The movement of the temperature of the planet up or down over time is referred to as

Solve for real t: - 25=20t-5t^2

Contrast balanced and unbalanced forces.

A wave will travel only as long as it has energy

a box sliding on a frictionless surface when it suddenly begins to rain heavily. if the downpour of rainfall falls vertically into the box, gradually filling it, what would happen to the speed of the box

Which would fall with a greater acceleration in a vacuum-a leaf or a stone?