What do you do if you approach a railroad crossing with a crossbuck sign that has no lights or gates

Indicate whether the following statements are always true or can be false. An object's velocity will change if a net force acts on the object. In order not to slow down, a car moving at a constant velocity needs a small net force applied.

What is the difference between apparent magnitude and absolute magnitude?

Walking converts what type of energy into mechanical energy? A) chemical B) electromagnetic C) nuclear D) thermal

What is frame of reference equations and how to apply?

Why can't there be a number lower than absolute zero

A sheet of paper has a mass of 5 grams. The paper is dropped from a high building twice (it reaches terminal speed in both cases), once as a flat paper of area 600 cm2 and once crumpled as a ball of radius 2 cm.

When the particle with charge q reaches the center of the original square, it is, as stated in the problem, momentarily at rest. Is the particle at equilibrium at that moment?

How does the bohr model represent electrons around the central nucleus why think of the spectra?

Refrigerated air reads 68°f and appears to be climbing: food is at 41°f. what should you do

Which piece of equipment would give the MOST accurate measurement of 45 mL of a liquid? A) A 100 mL graduated cylinder B) A 50 mL graduated cylinder C) A 100 mL beaker D) A 50 mL flask