What is the impact of increasing sector width on temporal resolution? Temporal resolutior decreases Temporal resolution increases There is no effect on temporal resolution Resolution is increased and multiplied by two
Multiple Choice Question Which item would be considered the most elastic? A candy bar A cup of coffee A car
The element's ability to convert pressure energy into electric energy is known as: Attenuation Acoustic impedance Refraction Piezoelectric
Keeping in mind the average reaction time, a motorist will travel 11 feet for each __ of speed before hitting the brake. 20 mph 10 mph 5 mph 15 mph
Which of the following properties must be measured to determine the masses of stars in a typical binary system? Choose one or more: A. the radii of the two stars B. the velocities of the two stars C. the average separation between the two stars D. the period of the orbits of the two stars
(1 of 10) What is the cosmic horizon? The maximum distance from us through which light from any object has had time to travel since the Big Bang. A space probe tasked with measuring the temperature of the cosmic microwave background radiation. The distance at which the curvature of the Universe prohibits us from seeing over the horizon. The distance from a black hole at which the escape velocity is equal to the speed of light.
Hand tools made of brass or bronze produce __ sparks, which will not ignite flammable vapors. Oblue Oalloy cold
What is the required pressure to push two inches of water in order to pass through the trap seal? three inches two inches one inch
A stone sphere of radius 7.00 m rests in a flat field. Relative to the ground, what is the gravitational potential energy of a 90.0-kg person sitting on the very top of the sphere? 1.23times 10^4J 7.76times 10^4J 3.88times 10^4J
17. When no air resistance acts on a projectile, its horizontal acceleration is a) g. b) at right angles to g. c) centripetal. d) zero.
Select the true statements. The distance across a galaxy group is usually a few hundred thousand light-years. Stars cluster together to form galaxy groups. Galaxy groups typically contain several hundred galaxies. Galaxy groups are mostly composed of empty space.
The variable you change on purpose in an experiment is called the independent variable . It is what you are testing to see how it affects the result. In this activity., what was that variable? The height you dropped the ball from The bounce height the ball reached The kind of graph you made C The number of times you collected data
The portion of the larger electromagnetic spectrum that humans can see is known as the __ visible spectrum Infrared spectrum microwave spectrum vestibular spectrum
Problem 17 A tiger leaps horizontally from a 7.5-m-high rock with a speed of $3.0m/sec$ How far from the base of the rock will she land?
How are work and energy related? (Read the procedure section carefully). A Energy is the ability to do work, and work is the mean by which energy changes from one form to another. B Energy is work multiplied by time, and work is equal to power. C Energy is the ability to do work, and work is energy divided by time. D Energy is the ability to do work, and work is power divided by energy. E Energy is the ability to do work, and work is energy multiplied by time.
In 2009, an earthquake hit Costa Rica, registering a 6.1 on the Richter scale. What was the intensity of this earthquake, assuming the reference value was 1? $(R=log(\frac {I}{I}_{0}))$ A. 5.1 B. $4.46\times 10^{2}$ C. $1.26\times 10^{5}$ D. $1.26\times 10^{6}$
16) Classify as scalar or vector. magnitude plus direction vector neither scalar
4. NASA wants to measure X-Rays but only have equipment that can measure Gamma Rays. Lesson NASA has to develop a new piece of equipment that detects difference wavelengths. Does NASA have to develop a new piece of equipment that detects longer or shorter wavelengths? Explain. __ 5. What is the order of electromagnetic waves from shortest wavelength to longest? __ 6. What is the order of electromagnetic waves from highest frequency to lowest frequency? __ 7. The sun produces all of these rays. Why do you think that not all of these rays are not hitting earth's surface? Explain your answer. __
3. What is the difference between a law about gravity and a theory about gravity?(14 Points) A law says objects fall, while a theory of gravity explains the pull between masses A theory of gravity is less scientific than a law of gravity A theory about gravity is just a guess, while a law is proven forever A law describes what gravity does , while a theory ex- plains why gravity works
1. Describe an example of something with high density and something with low density.
