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
$\square $ Answer Bank KE: 1000.0 J PE: 3000.0 J KE: 0J $PE:4000.0J$ KE: 2000.0 J PE: 2000.0 J KE: 4000.0 J PE: 0J
Learning Log: How do you think you get something to have more kinetic energy?
If a UV light unit has four lamps in it, and each lamp is 7-watt, it is known as a __ 7-watt unit 28-watt unit 11-watt unit 3-watt unit
10. What is the mass of a meteorite that is traveling towards Earth at $1,760m/s$ with a momentum of $33,400kgm/s$
Where is the energy coming from in the lab (where does it start)? A Potential energy in the Cheeto B Potential energy in the water C Kinetic energy inside the water D Kinetic energy in the Cheeto
What should happen to the temperature of the water? A It stays the same B It goes down C It goes up
9. Your local weather report announces that the barometric pressure is 30.44 inHg. Convert this pressure to psi, atm torr, and Pa.
Express the temperature, 275.18 K in degrees Celsius. $548.33^{\circ }C$ $274.17^{\circ }C$ $2.03^{\circ }C$ $120.88^{\circ }C$ $22.78^{\circ }C$
Hubble's Law has led physicists and astronomers to the hypothesis that the universe is expanding. True False
Newton determined that the force of gravity on an object is proportional to its mass causing its mass to be canceled out (Newton's second law) and resulting in a constant acceleration. If the laws of physics are universal, then Newton should be able to apply his discoveries about gravity on Earth to the motion of the planets in our Solar System. Newton's third law says that for every force there is an equal reaction force in the opposite direction. What does this imply about the force of gravity associated with a person standing on the Earth? Choose one: A. The force of gravity on the person cancels out to zero. B. The Earth's gravity pulls downward on the person but also pushes upward on them. C. The Earth's gravity pulls downward on the person, and the person's gravity pulls upward on the Earth. D. There is twice as much gravitational force on the person than there would be if it weren't for Newton's third law.
