12. Which of Newton's Laws of Motion help explain the following scenario? "A paddle wheel boat pushes on the water and the water pushes back causing the boat to move" a. Newton's First Law b. Newton's Second Law c. Newton's Third Law
If the power of a wave is increased by a factor of 10, what happens to the intensity of the wave? A It remains unchanged B It increases by a factor of 10 C It decreases by a factor of 10 D It increases by a factor of 100
Topic: Second Law of Thermodynamics More efficient gasoline engines could be built if they could withstand lower temperatures. greater rotational rates. none of the available options higher temperatures.
4. What is the structural classification of the Milky Way galaxy? A. Elliptical galaxy B. Barred spiral galaxy C. Irregular galaxy
Sound propagates through a soft-tissue medium and strikes another soft tissue.What is the approximate amount of transmission at this interference? A 100% B 99% B C 1% D 50%
Depth of Gate=2cm PRP=26mu s (2cmtimes 13mu s) PRF=38.5kHz(77,000(cm)/(s)div 2cm=38,500Hz) NL=19.25kHz((38.5kHz)/(2))
What is the final pressure when the temperature of a cylinder of oxygen at 1800 psig is increased from 50^circ F to 110^circ F
The degree of thickness of a liquid is called: a. viscosity. b. opacity c. viability. d. density.
__ is a form of energy transport consisting of electromagnetic waves traveling at the speed of light. a. Convection b. Radiation c. Conduction
How far does light travel in one year?[This distance is known as a light-year (ly) and is used in measuring astronomical distances.] square km
Atoms are electrically neutral when They have a minimal charge. They have a balanced number of protons and neutrons. They have a balanced number of protons and electrons. They have no valance electrons.
2. Suppose that hot coffee has a temperature of $90^{\circ }C$ in the coffee pot.You pour a serving of volume of 0.10 L into a ceramic coffee mug (specific heat $940J/kg^{\circ }C)$ that has a mass of 0.30 kg and is initially at $20^{\circ }C$ . What is the temperature of your coffee when the coffee and mug reach thermal equilibrium?
Ultraviolet (UV) radiation X-ray radiation, and some chemicals are all: a causes of mutations. b used in barbecuing. c treatments against radiation contamination. d none of these
What happens when an object vibrates in air? A. Light waves form B. Molecules bump into each other C. Energy disappears D. Space expands
16. A student calculates speed using the formula $speed=distance\div time$ Why is this formula useful? A. It tells how far an object can fall B. It shows how fast an object moves C. It explains why objects stop D. It measures acceleration
What is the wavelength of a 440 Hz sound traveling with a speed of $347m/s$ $Answer=$ $\square $
If Star A has three times the surface temperature of the Sun but has the same luminosity as the Sun, the radius of star A must be __ the radius of the Sun. $1/3$ 3 times $1/9$ 81 times
10. If you move a magnet in and out of a coil faster will the induced current be stronger or weaker? Explain.
16 of 28 Concepts completed Fill in the Blank Question A $\square $ scale can be used to exert a constant unbalanced force. e. It contains a $\square $ that stretches proportionally to the $\square $ of the applied force. C Need help? Review these concept resources. (1) Read About the Concept
the smallest unit of an element,the building block of matter Name the four Fundamental Forces from strongest to weakest subatomic particles Coulomb's Law atom
