Vibrating string experiment

This is an area of the Solar System located between the orbits of the Mars and Jupiter. It is occupied by numerous irregularly shaped rocky bodies.

In some plants, the pistils don't Form until a few days after the stamens do. How might this keep a plant from self pollinating

How many neutrons does element X have if its atomic number is 39 and its mass number is 79?

Is it possible to choose the value of q (that is non-zero such that the force on q is zero? explain why or why not.

It's mid-afternoon on a lovely, sunny day; it's 60°F, and the sun is 60° above the horizon. Rays from the sun strike the still surface of a shallow pond that is 20 cm deep.

Which of the following describes effort force?

What does the chemical formula CaCl2 show about the compound it represents? It is made up of one element. It is made up of two elements. It is made up of three elements. It is made up of four elements.

An electron with kinetic energy of 2000 eV (1 eV = 1.602 x 10-19 J) is fired horizontally across a horizontally oriented conducting plate with a surface charge density + 4.00 x 106 C/m2.

A vertebra is subjected to a shearing force of 535 N. Find the shear deformation, taking the vertebra to be a cylinder 3.00 cm high and 4.00 cm in diameter. The shear modulus for vertebrae is 8.00 * 1010 N/m2.

If radio waves cannot be reflected from the Sun, how can radar be used to find the distance from Earth to the Sun?