Saturn is made up of which gases? a Hydrogen b Helium Both A and B d None of the above
A quantum of radiatior has an energy of 2.0 keV. What is its frequency? (h=6.63x 10^-34Jcdot s and 1eV=1.60times 10^-19J) 1) 3.2times 10^17Hz 2) 4.8times 10^17Hz 3) 6.3times 10^17Hz 4) 7.3times 10^17Hz 5) 8.5times 10^17Hz
How many collisions occur in a crash? Five One None Three
What frequency range contains the fundamental of most instruments? 20-200hz 1000-5000hz 200-1000hz 5000-20,000hz
1. The first natural satellite that humans landed on is part of which system? A. Jupiter and its moons B. The Earth-Moon system C. The Andromeda Galaxy
What is the unit of electrical resistance? Amp Amp per volt Volt Ohm
A golf ball is struck across a flat fairway at an angle of 60^circ with an initial speed of 135ft/s a.). Write a set of parametric equations for the motion of the golf ball. b.). Determine how long the golf ball was in the air. c.). Determine how far the golf ball traveled in the air. Show all work. Use the Equation Editor. x=v_(0)cos(Theta )t Recall, y=-(1)/(2)(g)t^2+v_(0)sin(Theta )t+h g=32ft/sec/sec
What must increase along with the amount of load in a motor? a) Torque b) Speed c) Rotation d) Pressure 11
A pump increases the pressure of a fluid and adds energy to the system. True False
If 1.4 mol of dust particles were laid end to end along the equator, how many times would they encircle the planet? The circumference of the Earth at the equator is 40,076 km. Express your answer using two significant figures.
Fire the catapult at the lowest cup position What is the distance achieved? About 635 About 357
If Jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, what is being done? compression work radiation energy creation
Which word or phrase best describes entropy? disorder order kinetic energy force
What are most semiconductors made from? aluminum copper iron silicon
At which temperature does all molecular motion stop? OR $0^{\circ }C$ OK $0^{\circ }F$
Which statement about the volume and pressure of a gas is the most accurate? Volume of a gas is directly proportional to pressure of that gas in any container. Volume of a gas is inversely proportional to pressure of that gas in any container. Volume of a gas is always greater than pressure of that gas in any container. Volume of a gas is equal to pressure of that gas in any container.
CER: Make a claim about which type of material (dark or light)increases in temperature more when exposed to light energy Use evidence and scientific reasoning from class to support your answer. Your answer
In a transverse wave the wavelength can be measured as the distance between two adjacent compressions. TRUE FALSE
The slope of a linear velocity vs time graph tells us the __ of the object. displacement velocity speed acceleration
What is the first nucleus of an atom shown as? a fuzzy cloud a mass of protons and neutrons a solid mass surrounded by electrons a mass of protons
