What is a mixture, element or a compound

An object is being acted upon by three forces and moves with a constant velocity. One force is 60.0 N along the x-axis, the second in 75.0 N along the y-axis. What is the magnitude of the third force?

If a motor neuron involved in a reflex arc is damaged, which event in that arc is least likely to occur?

A box with an open top has vertical sides, a square bottom, and a volume of 32 cubic meters. if the box has the least possible surface area, find its dimensions. (in your answer leave a space between the number and the unit.

In the sentence "The speed of an object can vary," what does the word vary mean?

If salt is compound is it pure element or compound

You and a friend are jumping on a trampoline. Why does Earth, which is rapidly orbiting around the sun, not move under your feet when you jump? A.

How much heat is absorbed by a 29g iron skillet when its temperature rises from 9oC to 105oC?

If the voltage of the secondary side of the transformer is less than? and the voltage of the primary side of the transformer exceeds? to ground, the secondary side shall be grounded.?

What is the mass of a 3920 Newtons desk

Find the average speed of a horse that traveled east for 25km in 4 hours.