Which of the following lasers falls into the invisible part of the electromagnetic spectrum, is absorbed by cellular fluid, and is not dependent on tissue color? a. Nd:YAG b. Ho:YAG c. argon d. CO_(2)
If the resistance of the run winding decreases, the __ motor will draw too much current while it is running centrifugal starting switch will not start the motor load on the motor is probably too great motor probably will not start
a 4.0 kg object moves at 8.0m/s what is its momentum? 32kgtimes m/s 12kgtimes m/s 24kgtimes m/s 48kgtimes m/s
What is the formula for momentum? p=m+v p=mtimes v p=mdiv v p=vdiv m
What are the two most essential components of any medium, regardless of whether it is liquid or solid, or what type of container is used?
What liquid property is defined as the spontaneous flow of a liquid into a narrow tube or porous material? capillary action surface tension vapor pressure volality
Please select the word from the list that best fits the definition In his model of the atom, protons and neutrons make up most of the mass, while electrons make up most of the volume square
A proton is a subatomic particle carrying a charge equal to but opposite that of an electron. Please select the best answer from the choices provided T F
Please select the word from the list that best fits the definition Subatomic particle that has a positive charge and that is found in the nucleus of an atom square
The first law of thermodynamics states that: A All energy on Earth comes from the sun B Oxidation and reduction reactions are always coupled C Energy cannot be created or destroyed D All chemical reactions have activation energy
Which statement about temperature is correct? Temperature can measure the kinetic energy between two objects. Temperature can measure the heat movement between two objects. Temperature can measure the potential energy between two objects. Temperature can measure the mass transfer between two objects.
Reasoning:Explain how energy is transferred through the water.
What happens to an object when it absorbs light? A. It gets colder B. It gets warmer C. It changes material D. It becomes transparent
What happens to the total momentum of two objects after a collision? It remains the same It decreases It becomes zero It increases
14. What is the net force acting upon an object which is subjected to the following forces? 3 Newtons South 3 Newtons North 5 Newtons East 7 Newtons West 2 Newtons West 18 Newtons North 6 Newtons West 18 Newtons South
You should write the definition of the key vocabulary down here. Balanced forces Unbalanced forces Equilibrium Constant velocity Force Net force Mass Inertia Acceleration Directly proportional Inversely proportional Newton's 1st law of motion Newton's 2nd law of motion Newton's 3rd law of motion Weight
18. A force $F(x)=10x(inN)$ acts over a displacement from $x=0$ to $x=3$ m. What is the work done?
17. How much power is exerted when you lift a 60-kg rock to a height of 25 m in 30 seconds?
A 60 kg sprinter is running at a velocity of $8m/s$ during a race Calculate the sprinter's kinetic energy. 240J 480 J 3,480J 1,920 J
When using a megger to check insulation resistance to ground, which of the following would be an acceptable minimum resistance? a. $1K\Omega $ b. $5K\Omega $ c. $1M\Omega $ d. $25\Omega $
