How to tell if two objects are in thermal equilibrium

1. the objects have the same temperature

2. the objects are the same size

3. the objects are touching each other

4. the objects temperatures are changing

If an object is in equilibrium, which of the following statements is not true? A) The velocity is constant. B) The object must be at rest. C) The net force acting on the object is zero. D) The acceleration of the object is zero.

A car travels 3 km in 2 min. What is the velocity of the car?

Would you measure the height of a building in meters? give reasons for your answer

Time that is measured in definite periods such as minutes, days and years is called A. Relative time B. Absolute time Time that is judged according to some other "marker" such as a persons gray hair and wrinkles is called A. Relative time B.

Which step of the scientific method involves obtaining information through the senses

Gerry is looking at salt under a powerful microscope and notice a crystalline structure. what can be known about the salt sample that Gerry is looking at

The kinetic energy of a moving object is equal to the work required to bring it to its speed from rest, or the work the object can do while being brought to rest.

Imagine standing on a bathroom scale and reading your weight. now lift one foot and read your weight again. does the scale read more, less or the same weight when you are standing on one foot?

The period T of a simple pendulum depends on the length L of the pendulum and the acceleration of gravity g (dimensions L/T^2). (a) Find a simple combination of L and g that has the dimensions of time.

What is an example of the theory that the best adapted organisms for an environment are the ones most likely to survive