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Jim

Questions (683)

A 100-g block hangs from a spring with k = 4.6 N/m. At t = 0 s, the block is 20.0 cm below the equilibrium position and moving
1. 2 answers
2. 461 views
Did you win or (loose or lose) the game?
1. 1 answer
2. 339 views
A horse draws a sled horizontally across a snow-covered field. The coefficient of friction between the sled and the snow is
1. 1 answer
2. 2,626 views
A chemist makes a “stock” solution of KOH by dissolving 1050.0 grams in enough water to make 1.50 liters of solution. If
1. 2 answers
2. 1,391 views
A box of dog food would feed 5 dogs for 4 days. How long would it feed 8 dogs ?
1. 2 answers
2. 477 views
Jim begins a job with a starting salary of 27000 dollars. she is guaranteed a raise of 4.75% each year. Sarah also starts a job
1. 0 answers
2. 556 views
In a CD, the characteristic that is given in binary is the wave of which of the following? A) amplitude B) None of these.C)
1. 1 answer
2. 453 views
The quality of a musical tone has to do with a variety of which of the following? A) amplitudes.B) sound speeds.C)
1. 0 answers
2. 351 views
A geometric series with the first term 7 converges to 70. What does the common ratio equal? What does the second partial sum
1. 1 answer
2. 506 views
What beat frequencies are possible with tuning forks of frequencies 258, 263, and 267 Hz?
1. 3 answers
2. 4,261 views
Imagine a Rip van Winkle type who lives in the mountains. Just before going to sleep, he yells, "WAKE UP", and the sound echoes
1. 3 answers
2. 2,431 views
Rank the beat frequency from highest to lowest for the following pairs of sounds:a. 876 Hz, 871 Hz b. 786 Hz, 784 Hz c. 721 Hz,
1. 1 answer
2. 2,098 views
Solve for xa) e^2x+1=74 b) Log3x=4 (3 is subscript)
1. 1 answer
2. 550 views
Write this repeating decimal as a ratio of relatively prime integers:0.324324324...
1. 1 answer
2. 528 views
Find the number to which this geometric series converges: 200 - 170 + 144.5 - ...
1. 1 answer
2. 357 views
Meg flipped a penny 2 times. What is the probability she get 2 heads?
1. 1 answer
2. 550 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. 1 answer
2. 411 views
Calculate the current that moves through your fingers (resistance 1000 \Omega) when you touch them to the terminals of a 6.4- V
1. 1 answer
2. 465 views
Consider a transformer with a primary that has 50 turns of wire and a secondary of 250 turns. Then a 110-V input will produce an
1. 1 answer
2. 816 views
Complete and balance the following equationS(s)+HNO3(aq)--->H2SO3(aq)+N2O(g) An explanation would be excellent, thanks in
1. 1 answer
2. 1,710 views
A galvanometer best makes use of the fact that there exists a magnetic field in which of the these?. A) about aligned magnetic
1. 1 answer
2. 522 views
The shape of a magnetic field about a current-carrying wire is much the same as the shape of an electric field ____________. A)
1. 0 answers
2. 449 views
How much resistance must a 9-V device have to keep the current about 1 A? A) None of these.B) 1 ohm.C) 9 ohms.D) 4.5 ohms.E) 10
1. 1 answer
2. 477 views
There are electrons in the filament of the ac lamp in your bedroom. When you turn on the lamp and it glows, the glowing comes
1. 1 answer
2. 1,221 views
There are electrons in the filament of the ac lamp in your bedroom. When you turn on the lamp and it glows, the glowing comes
1. 0 answers
2. 614 views
How much resistance must a 9-V device have to keep the current about 1 A? A) None of these.B) 1 ohm.C) 9 ohms.D) 4.5 ohms.E) 10
1. 0 answers
2. 396 views
What must the systolic blood pressure be valued at for adequate mean arterial pressure if the diastolic pressure is 75? (Assume
1. 0 answers
2. 489 views
Predict the expected change to blood flow should norepi act on arteries of the abdominal cavity?A. Blood flow increases B. Blood
1. 0 answers
2. 610 views
To say a substance is electrically polarized is to say that its net charge is ____________________. A) either negative or
1. 0 answers
2. 705 views
To say an object has a negative charge is to say it has an excess of what kind of charges? A) Either protons or electrons.B)
1. 1 answer
2. 656 views
The number of electrons that move about the nucleus of an electrically neutral atom is the same as the number of
1. 0 answers
2. 715 views
The source of all wave motion is ____________________. A) something vibrating.B) a harmonic object, or system of objects.C) any
1. 1 answer
2. 883 views
Find the exact values of sin 2theta, cos 2 theta and tan 2 theta when cot theta = 4/3
1. 2 answers
2. 1,036 views
Twins who are 19.0 years of age leave the earth and travel to a distant planet 12.0 light-years away. Assume that the planet and
1. 2 answers
2. 2,110 views
The heat of vaporization of ethyl alcohol is about 200 cal/g.If 2.4 kg of this fluid were allowed to vaporize in a refrigerator,
1. 3 answers
2. 5,499 views
A 9.0 kg iron ball is dropped onto a pavement from a height of 110 m.If half of the heat generated goes into warming the ball,
1. 1 answer
2. 1,315 views
If you drop a piece of ice on a hard surface, the energy of impact will melt some of the ice. The higher it drops, the more ice
1. 3 answers
2. 2,067 views
Light waves with two different wavelengths, 632 nm and 474 nm, pass simultaneously through a single slit whose width is 7.63 x
1. 3 answers
2. 1,101 views
4 Consider an airplane with a total wing surface of 90 m^2. At a certain speed the difference in air pressure below and above
1. 0 answers
2. 628 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. 1 answer
2. 1,057 views
Light waves with two different wavelengths, 632 nm and 474 nm, pass simultaneously through a single slit whose width is 7.63 x
1. 2 answers
2. 2,564 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. 2,090 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. 1,156 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. 694 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. 656 views
The difference between energy radiated from the sun and energy radiated from the Earth has to do with ____________________. A)
1. 0 answers
2. 523 views
Which of these two bodies gets its internal heat from nuclear processes? A) Both.B) Sun.C) Neither.D) Earth.
1. 1 answer
2. 386 views
The higher the temperature of an object, the ____________________. A) Neither of these.B) shorter the wavelengths of radiation
1. 1 answer
2. 2,173 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. 486 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. 1 answer
2. 419 views
From a rectangular piece of cardboard having dimensions a × b, where a = 40 inches and b = 70 inches, an open box is to be made
1. 1 answer
2. 2,862 views
Assume k is a constant. the functiong(x)= x4- 6k(x2) + 6k2 + x has at least one point of inflection a- if and only if k>0 b- if
1. 1 answer
2. 433 views
for a measurement of 7.3 mm, how small could the actual length be?A. 6.8mm B. 7.15mm C. 7.25mm D. 7.4mm
1. 1 answer
2. 331 views
Four friends together earned 128 mowing lawns. After paying an amount g for gasoline, they shared the money equally. Which
1. 1 answer
2. 699 views
What is the time it takes a mosquito to flap its wings once if the frequency of their wing beats is 440Hz?
1. 2 answers
2. 446 views
Hi all. I posted earlier but I'm still stuck on part of this problem.I thought that statements 2 and 3 were correct below. But I
1. 2 answers
2. 767 views
Hi all. I posted earlier but I'm still stuck on part of this problem.I thought that statements 2 and 3 were correct below. But I
1. 1 answer
2. 730 views
Can the voltage across any of the three components in the R-L-C series circuit ever be larger than the maximum voltage supplied
1. 1 answer
2. 1,016 views
Can the voltage across any of the three components in the R-L-C series circuit ever be larger than the maximum voltage supplied
1. 0 answers
2. 1,180 views
Would another past tense from be has ran or what would you combine with had, has, or have for past tense?
1. 1 answer
2. 456 views
What is the past tense of run
1. 1 answer
2. 356 views
Complete the following logr^p=
1. 1 answer
2. 331 views
2.5 meters converted into feet and inches
1. 1 answer
2. 373 views
2.5 meters converted into feet and inches
1. 1 answer
2. 336 views
What is the best definition for The law of universal gravitation ?
1. 1 answer
2. 857 views
Which fits betterWow! He hit that ball good or well. Does the missing word describe how he hit it or him? Which fits better? I'm
1. 2 answers
2. 565 views
What fits best in this sentence and whyI feel bad or badly that Luis couldn't join us because of a bad case of summer flu. Dos
1. 1 answer
2. 615 views
In the following sentence what is the better choice and why.....I'll bet it feels good or well to run around those bases.
1. 1 answer
2. 728 views
2 blocks are in contact on a horizontal table. A force is applied on the first block at a 30* angle. The blocks move to the
1. 6 answers
2. 799 views
A 90 kg mover climbs a ladder to a height of 8 m in 32 s. Find the power rating of the mover. I solved by using P= mgh/t and
1. 2 answers
2. 469 views
A monopolist is currently producing a level of output where Price = $110; Marginal Revenue = $10; Quantity = 100; Total Cost =
1. 0 answers
2. 691 views
Z(x^5− x^2)(x^6− 2x^3)^2011dxThank you so much!
1. 1 answer
2. 310 views
A monopolist is currently producing a level of output where Price = $110; Marginal Revenue = $10; Quantity = 100; Total Cost =
1. 0 answers
2. 687 views
A monopolist is in long-run equilibrium and earning economic profits equal $100 million. The government imposes a lump sum tax
1. 0 answers
2. 535 views
Can you explain what the quality of the reverse transcriptase in the HIV virus has to do with the problem that there is still no
1. 0 answers
2. 556 views
#4. Rain is falling at a velocity of 10,0 m/s at an angle of 30* towards the west. At what velocity and direction does a
1. 1 answer
2. 569 views
#4. Rain is falling at a velocity of 10,0 m/s at an angle of 30* towards the west. At what velocity and direction does a
1. 0 answers
2. 592 views
A ball of mass 5.3 kg and radius 8 cm rolls without slipping horizontally at 4.3 m/s and hits a spring attached to a wall. What
1. 0 answers
2. 531 views
Which electromagnetic radiation can be used in space to detect low temperatures?Gamma Rays Infra Red Ultra Violet Or any of the
1. 0 answers
2. 432 views
Which electromagnetic radiation can be used in space to detect low temperatures?Gamma Rays Infra Red Ultra Violet Or any of the
1. 1 answer
2. 458 views
With y=f(x) (2x-10)^1/2having a virtual line joined at point Q from the origin (0,0), determine the coordinates of point Q that
1. 3 answers
2. 567 views
without any simplification, find the derivative ofh(x) Arcsin^4 (3x-1) / (3)^1/2 (square root) I end up with h'(x) = 12Arcsin^3
1. 2 answers
2. 915 views
this is a question I don't understand:Demonstrate the following derivative rule: (Arccsc(u))' = (-1/u(u^2-1)^1/2) * u' Where u =
1. 1 answer
2. 755 views
Use rational exponents to writex^1/5* y^1/6 * z^1/3
1. 1 answer
2. 389 views
A baseball player hits a foul ball into the stands. He wants to know where the ball would've landed if the stands had not been
1. 1 answer
2. 598 views
1) What is the minimum number of single nucleotide substitutions that would be necessary for each of the following amino acid
1. 0 answers
2. 551 views
An 8.65-kg block slides with an initial speed of 1.52 m/s up a ramp inclined at an angle of 27.6° with the horizontal. The
1. 0 answers
2. 789 views
Two comets, each of mass 6500 kg and traveling 88 m/s in opposite directions, collide head-on and come to rest. How much energy
1. 1 answer
2. 1,054 views
Your demand curve for baseball tickets is as follows:price per ticket Qd $1 4 $2 3 $10 2 $20 1 YOu buy 2 tickets at $10 each.
1. 0 answers
2. 501 views
A manufacture of television sets has a historical defective rate of ten percent.a. what is the probability that in an hourly
1. 1 answer
2. 505 views
An object is dropped from a cliff and reaches a velocity of 47.5 m/s at the time of impact. a) How high is the cliff? b)How long
1. 2 answers
2. 607 views
A manufacture has been selling 1300 television sets a week at 450 each. A market survey indicates that for each 14 rebate
1. 1 answer
2. 1,891 views
A rigid tank having a volume of 0.100 m3 contains helium gas at 150 atm. How many balloons can be inflated by opening the valve
1. 1 answer
2. 2,855 views
Need help with this! Uses a while counter loopIn front of you is a non-see through bag containing 50 red balls and 50 black
1. 0 answers
2. 489 views
A popular tourist attraction in Ottawa is the Peace Tower which rises from the Centre Block of the Parliament Buildings.
1. 1 answer
2. 607 views
A ladder is placed against a wall, with its base 2 m from the wall. The ladder touches the top of a 2 m fence that is 1.5 m from
1. 2 answers
2. 1,695 views
Two identical point charges are fixed to diagonally opposite corners of a square that is 0.6 m on a side. Each charge is +2.5
1. 1 answer
2. 1,049 views
Tree point charges(A---B---C)have equal magnitudes and are located on the same line.?The separation d btw A and B is the same as
1. 2 answers
2. 4,926 views
Increasingly, employees are being allowed to choose benefit packages from a menu of items. For instance, workers may be given a
1. 1 answer
2. 1,491 views
I have just started business classes but I also own a business. I was wondering if anyone has any insight to how I would know if
1. 0 answers
2. 687 views

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