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Kristie

Questions (79)

In a double-slit experiment, the fourth-order maximum for wavelength of 450 nm occurs at an angle theta = 90. Thus it is on the
1. 0 answers
2. 622 views
A recipe serves 12 people and requires 1/5 cup of eggs. If you wanted to make the same recipe to serve 4 people, how many cups
1. 1 answer
2. 525 views
And armored truck left a federal bank at noon when a shipping error was discovered an agent was sent by helicopter to overtake
1. 1 answer
2. 1,304 views
How many kilocalories of heat are released when 125 g of water cools from 100.0oC to 19.5oC?
1. 1 answer
2. 845 views
Why is it important to identify the limiting reactant in stoichiometry?
1. 1 answer
2. 501 views
A 297-kg motorcycle is accelerating up along a ramp that is inclined 25.9° above the horizontal. The propulsion force pushing
1. 1 answer
2. 693 views
Consider the equationv = 1/4zxt^2. The dimensions of the variables v, x, and t are [L]/[T], [L], and [T], respectively. The
1. 3 answers
2. 1,559 views
Regarding lipoproteins: A) HDL promotes coronary artery disease B) The higher the ratio of lipid to protein, the higher the
1. 0 answers
2. 929 views
WHAT IS THE Highly sensitive blood test and marker for myocardial infarction CALLED
1. 1 answer
2. 634 views
Regarding lipoproteins: A) HDL promotes coronary artery disease B) The higher the ratio of lipid to protein, the higher the
1. 0 answers
2. 588 views
Sound waves have which of these properties? A) Reflection.B) All of these.C) Refraction.D) Interference.E) Capable of producing
1. 1 answer
2. 526 views
If you double the frequency of sound, you also double which of the following?A) All of these.B) None of these.C) wavelength.D)
1. 2 answers
2. 799 views
If you double the frequency of sound, you also double which of the following? A) All of these.B) None of these.C) wavelength.D)
1. 0 answers
2. 714 views
Is it true that all radio waves are faster than all sound waves—no exceptions? A) False always.B) True, in most common
1. 1 answer
2. 960 views
Beats in sound are the result of which of the follwing wave? A) resonance.B) refraction.C) reflections.D) amplitude changes.E)
1. 1 answer
2. 459 views
Frequency and period are related, in that they are which of the following?A) inverses of each other.B) None of these.C) both on
1. 1 answer
2. 494 views
Rank the speed of sound through the following from greatest to least:A. HeliumB. Benzene C. Mercury
1. 0 answers
2. 503 views
An astronaut on the Moon attaches a small brass ball to a 1.00- m length of string and makes a simple pendulum. She times 15
1. 2 answers
2. 4,627 views
A certain radar installation tracks airplanes by transmitting electromagnetic radiation of wavelength 4.0 cm.a)Find the
1. 1 answer
2. 8,834 views
A sonic boom is produced by an aircraft when it does which of the following? A) flies faster than sound continuously.B) None of
1. 1 answer
2. 581 views
Frequency and period are related, in that they are which of the following?A) inverses of each other.B) None of these.C) both on
1. 1 answer
2. 506 views
Consider a wave that travels a distance of 3 meters in 1 second with a frequency of 2 hertz. What is its amplitude? A) 4
1. 1 answer
2. 829 views
The feature that our eyes are most sensitive to seeing is which of the following? A) edges or boundaries.B) images that fall on
1. 1 answer
2. 582 views
Light has a maximum constant speed in which of the following? A) water.B) red glass.C) the upper atmosphere.D) clear glass.E)
1. 2 answers
2. 967 views
The finding that light in free space has one speed, and one speed only, is consistent with ____________________. A) the
1. 2 answers
2. 1,242 views
1909, Robert Millikan was the first to find the charge of an electron in his now-famous oil-drop experiment. In that experiment
1. 0 answers
2. 1,341 views
In periods of peak demand, power companies lower their voltage. This saves them power (and saves you money!). To see the effect,
1. 0 answers
2. 558 views
In periods of peak demand, power companies lower their voltage. This saves them power (and saves you money!). To see the effect,
1. 1 answer
2. 2,912 views
Given that the power consumed by a device is 1000 W operating on a 70-V line, calculate the amount of current it draws.
1. 3 answers
2. 1,173 views
8 1/2 HRS ON THIS MASTERING PHYSICS WOWn 1909, Robert Millikan was the first to find the charge of an electron in his now-famous
1. 2 answers
2. 4,963 views
Electronic types neglect the force of gravity on electrons.To see why, compute the force of Earth's gravity on an electron and
1. 2 answers
2. 3,878 views
Charge polarization is normally produced by ____________________. A) nuclear interactions.B) contact.C) induction.D) friction.E)
1. 0 answers
2. 516 views
To say that charge is conserved is to say that charge ____________________. A) is transferred, but never created or destroyed.B)
1. 0 answers
2. 659 views
The number of electrons that move about the nucleus of an electrically neutral atom is the same as the number of
1. 1 answer
2. 1,094 views
Touch a 5000-V charged balloon and you're not harmed because, although the energy/charge ratio is high, there is
1. 2 answers
2. 1,182 views
Electric potential is measured in units of ____________________. A) watts.B) joules per coulomb, or volts.C) joules.D) ohms.E)
1. 0 answers
2. 786 views
Which of these are correct for an electric field? A) It's a vector quantity, and can be cancelled.B) Three of three are
1. 1 answer
2. 988 views
Charge polarization is normally produced by ____________________. A) nuclear interactions.B) contact.C) induction.D) friction.E)
1. 0 answers
2. 575 views
On a perfect fall day, you are hovering at low altitude in a hot-air balloon, accelerated neither upward nor downward. The total
1. 0 answers
2. 783 views
In a 25 degree C room, hot coffee in a vacuum flask cools from 72 degree C to 54 degree in 8 hours.Find its temperature after
1. 2 answers
2. 2,150 views
On a perfect fall day, you are hovering at low altitude in a hot-air balloon, accelerated neither upward nor downward. The total
1. 0 answers
2. 975 views
What would be the final temperature of a mixture of 50 g of 15 degrees C water and 50 g of 40 degrees C water?
1. 0 answers
2. 492 views
What are the temperatures for freezing water and boiling water on the Kelvin temperature scale?a)273K for freezing water; 373K
1. 1 answer
2. 1,176 views
On a perfect fall day, you are hovering at low altitude in a hot-air balloon, accelerated neither upward nor downward. The total
1. 2 answers
2. 1,424 views
Consider an airplane with a total wing surface of 90 m^2. At a certain speed the difference in air pressure below and above the
1. 0 answers
2. 715 views
The weight of the atmosphere above 1 m^2 of Earth's surface is about 100,000 N. Density, of course, becomes less with altitude.
1. 0 answers
2. 721 views
A mountain-climber friend with a mass of 82 kg ponders the idea of attaching a helium-filled balloon to himself to effectively
1. 0 answers
2. 1,163 views
Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by
1. 0 answers
2. 911 views
Your friend of mass 80 kg can just barely float in freshwater.Calculate her approximate volume.
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2. 6,964 views
A 6.2kg piece of metal displaces 0.80 L of water when submerged.Find its density.
1. 1 answer
2. 729 views
Can anyone help me on this one???????The temperature at the bottom of Lake Tahoe in the Sierra Nevada Mountains of California is
1. 2 answers
2. 586 views
Suppose that you balance a 6kg ball on the tip of your finger, which has an area of 1 cm^2Find the pressure on your finger.
1. 1 answer
2. 1,268 views
The temperature at the bottom of Lake Tahoe in the Sierra Nevada Mountains of California is 4°C year round. In which country is
1. 3 answers
2. 636 views
The ocean level rises when global temperature rises, due to ____________________. A) Both of these.B) Neither of these.C)
1. 1 answer
2. 632 views
The difference between energy radiated from the sun and energy radiated from the Earth has to do with ____________________. A)
1. 1 answer
2. 767 views
1.Temperature is distinguished from heat when we note that whereas temperature is ____________________. A) None of these.B)
1. 0 answers
2. 673 views
Temperature is distinguished from heat when we note that whereas temperature is ____________________. A) None of these.B)
1. 0 answers
2. 1,088 views
The ocean level rises when global temperature rises, due to ____________________. A) Both of these.B) Neither of these.C)
1. 1 answer
2. 563 views
The temperature at the bottom of Lake Tahoe in the Sierra Nevada Mountains of California is 4°C year round. In which country is
1. 1 answer
2. 565 views
Temperature is distinguished from heat when we note that whereas temperature is ____________________. A) None of these.B)
1. 1 answer
2. 626 views
Which of the following 1-gram blobs of water has the least surface area? A) All have about the same surface area.B) A spherical
1. 1 answer
2. 1,067 views
Which floats with most of its volume below the surface? A) None of these.B) An oak log.C) All of these.D) An iceberg.E) A
1. 0 answers
2. 500 views
For which of these will the buoyant force be the same as its weight when placed in water? A) A match stick.B) All of these.C) A
1. 1 answer
2. 532 views
Blood pressure is normally greater in your ____________________. A) arms.B) legs.C) head.D) feet.E) All the same
1. 0 answers
2. 647 views
my last one!!Calculate the force of gravity between a newborn baby of mass 2.9 kg and the obstetrician of mass 100 kg, who is
1. 2 answers
2. 731 views
Calculate the force of gravity between Earth and the Sun (the Sun's mass = 2.0×10^30 kg; average Earth-Sun distance =
1. 3 answers
2. 2,157 views
Calculate the force of gravity between a newborn baby (mass = 2.6 kg) and the planet Mars (mass = 6.4 * 10^23kg) when Mars is at
1. 3 answers
2. 1,487 views
in the diagram below, <G and <H are complementary. What is the measure of G?a)20 b)30 c)40 d)50 inside G they have a problem
1. 3 answers
2. 621 views
in the diagram below, <G and <H are complementary. What is the measure of G?a)20 b)30 c)40 d)50 inside G they have a problem
1. 1 answer
2. 546 views
in the diagram below, <G and <H are complementary. What is the measure of G?a)20 b)30 c)40 d)50 inside G they have a problem
1. 2 answers
2. 1,158 views
Suppose that weights of 5th grade elementary boys are normally distributed with mean µ =90 lbs and variance ó2 = 4 lbs. Find
1. 1 answer
2. 777 views
if 1 adult male is randomly selected and is assumed to have 20 lb of carry on baggage, find the probabilty that his total is
1. 1 answer
2. 1,211 views
A 56 kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 11 m, and falls a total of
1. 2 answers
2. 1,802 views
A 67 kg hiker climbs to the top of a 3700 m-high mountain. The climb is made in 5.5 h starting at an elevation of 2800 m.
1. 4 answers
2. 989 views
Solve 16 - 2(8w-7)= 3w - 18(2-w)
1. 1 answer
2. 366 views
Translate to an equation:r $2 roses and t $2.50 tulips total $30 graph the equation and use the graph to determie three
1. 1 answer
2. 1,129 views
Is the speed of light directly proportional to the distance traveled?
1. 2 answers
2. 631 views
Define a parallelogram
1. 2 answers
2. 570 views
Why do you think King Henry VIII insisted that everyone in England belong the Church of England?
1. 2 answers
2. 747 views

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