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Questions (959)
Segment AD is perpendicular to the radius of circle (B) and the radius of circle (c). If radius BA=6in, segment AD=21in and
2 answers
1,278 views
A sample of sulfur hexafluoride gas (SF6) occupies a volume of 3.230 Liters at 7.011 x 101 oC. Assuming the pressure is
1 answer
747 views
A plane travels 1000 km at an angle of 40 degrees East to North, then changes direction and travels 500 km at an angle of 20
1 answer
802 views
How many grams of MgCl2 would be required to make 440 g of magnesium ?
1 answer
460 views
The human heart discharges 75ml of blood at each beat against the pressure of 0.1mmHg. Calculate the power of the heart assuming
3 answers
1,159 views
After giving an intense performance, a confused and disoriented flautist has wandered onto the motorway! They are playing a
2 answers
602 views
Two identical, small balls are suspended by separate 0.25m threads that are attached to a common point on the ceiling. Each ball
1 answer
998 views
In its search for flying insects, a bat uses an echolocating system based on pulses of high frequency
sound. These pulses are 2.0
0 answers
764 views
(a) Suppose 10 astronauts are sent to Mars and then back to Earth. The average power usage of
each astronaut is 10,000,000 joules
1 answer
550 views
Three Bases and home plate make a diamond that is 90 feet on each side. What is the perimeter of the diamond?
2 answers
957 views
Calculate how many grams of MgO that can be produced from 4.58 of Mg metal and 0.99 of O2 gas.
Recall the balanced reaction is: 2
2 answers
810 views
If 12.01 g of Mg metal and 6.56 g of O2 gas are reacted,
1) How many moles of MgO can be produced from the given mass of Mg? 2)
2 answers
704 views
If 12.01 g of Mg metal and 6.56 g of O2 gas are reacted,
1) How many moles of MgO can be produced from the given mass of Mg? 2)
1 answer
748 views
Given that you are starting with 20.816 grams of Fe and 7.079 grams of O2, what is the THEORETICAL YIELD of Fe2O3 in moles?
1 answer
458 views
A certian recipe asks for 5/8 cup of granola. How much is needed to make 1/9 of a recipe?
1 answer
500 views
A campground consists of 8 square campsites arranged in a line along a beach. The distance from the edge of a campsite to the
7 answers
3,269 views
A missile is fired with a launch velocity of 15000 ft/s at a target 1200 miles away. At what angle must it be fired to hit the
1 answer
882 views
The pool is partially filled with water. The volume of the water in the pool is 45 cubic feet. How deep is the water?
A.0.5 ft
18 answers
5,653 views
A flask of hydrogen gas is collected at 1.023 atm and 35 degrees C by displacement of water at 35 degrees C is 42.2 mm Hg. What
1 answer
1,068 views
Comet C has an elliptical orbit of eccentricity 0.9638 with the sun at one focus. The greatest distance of the comet from the
0 answers
1,263 views
Electrons in a narrow beam travelling at a steady speed of 5 x 10^7 ms^-1 are directed into the space between two oppositely
1 answer
639 views
A beam of electrons is directed into uniform electric and magnetic feilds that are at right angles to one another and to the
2 answers
842 views
Find the area of the region bounded by the graphs of y = x, y = 6 - 2x, and y = 0. (4 points)
3 6 9 None of these Please help I
2 answers
4,484 views
(60/x)x66=400
1 answer
328 views
A ball is projected horizontally from the top a hill with a velocity f 30mls. If it reaches the ground 5seconds later, the
3 answers
702 views
A ball is projected horizontally from the top a hill with a velocity of 30mls. If it reaches the ground 5seconds later, the
1 answer
705 views
What influenced the scientific revolution?
6 answers
1,039 views
The discounted price of a book is 85% of the original price. This is a savings of $3. A sales tax of 8% will be added to the
6 answers
1,907 views
4x(x-2)=(2x+1)(2x-3) need help to solve
1 answer
326 views
We were doing review in class today and I remembered this one question I never got(though I don't have the specific question
0 answers
616 views
The function f(x)=x^2+5x+6 has zeros at -2 and -3. What are the zeros of the function y=-2f(x/11) ?
Do you just plug x/11 into
1 answer
670 views
On a 120 km trip a motorist travels 60 km at 60 km/h. How fast must the motorist go for the next 60km in order to average
2 answers
688 views
At a carnival, you can try to ring a bell by striking a target with a 8.46-kg hammer. In response, a 0.411-kg metal piece is
1 answer
748 views
A skier slides horizontally along the snow for a distance of 12.1 m before coming to rest. The coefficient of kinetic friction
1 answer
5,341 views
helicopter flies over the arctic ice pack at a constant altitude, towing an airborne 108-kg laser sensor which measures the
1 answer
521 views
A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 6.54 m/s. The car is a
0 answers
487 views
Jo needs to know which of the following cannot be a prime number whenever p is a prime number greater than 2001.
A. p-2 B. p+2 C.
2 answers
444 views
The roots of x^2-999999x-9999=0 and ? are additive intergers
A. x^2+999999x-9999=0 B. x^2-999999x+9999=0 C. x^2+999999x+9999=0 D.
0 answers
522 views
When n= ?, one term in the expansion of (2x^2+3x+2)^n is 1024.
A. 4 B. 8 C. 9 D. 10
1 answer
325 views
One solution contains 25% as much water as alcohol and another solution contains 5 times as much water as alcohol. How many
2 answers
670 views
1) Mucus traps __________.
2) The windpipe is lined with sticky __________ and microscopic __________. 3) Tiny microscopic
3 answers
841 views
Calculate the volume of solution that has a vapour pressure of 25.8 mbar and contains 200.3 g of galactose, C6H12O6, at a
2 answers
4,539 views
Two ropes are attached to a wagon, one horizontal to the west with a tension force of 40 N and the other east at an angle of
1 answer
1,577 views
Higher signal to noise signal ratios can be achieved in FTIR spectra compared to spectra from dispersive ir instrument. how is
0 answers
429 views
Find the sum to infinity of the series
1 + 4/3! + 6/4! + 8/5!
2 answers
570 views
Find the sum to infinity of the series
1 + 4/3! + 6/4! + 8/5!
2 answers
595 views
I just need help with these three
1.Cell respiration glucose is reacted wth oxygen in body to produce carbon dioxide and water
1 answer
1,301 views
1.Cell respiration glucose is reacted wth oxygen in body to produce carbon dioxide and water how many liters of carbon dioxide
5 answers
1,512 views
Can I call someone and talk to them
1 answer
381 views
Will a cylinder always have a larger volume than a rectangular prism?
1 answer
599 views
A cylinder fish tank has a volume of 301.44, a rectangular fish tank as a volume of 300, and a triangular prism tank has a
3 answers
864 views
We have to find the right linking verb.
1.) It was she/her who was the director. She 2.) The owner of the recording equipment was
2 answers
617 views
show that :
cos(360*+x)-tan(180*-x)sin(360*-2x)cos(-x) divided by sin(90*+x)=cos2x
0 answers
736 views
show that :
cos(360*+x)-tan(150*-x)sin(360*-2x)cos(-x)/ sin(90*+x)=cos2x
0 answers
489 views
Find the sum to n terms of 1/(1.2.3) + 3/(2.3.4) + 5/(3.4.5) + 7/(4.5.6)
0 answers
339 views
Find the sum to n terms of 1/(1.2.3) + 3/(2.3.4) + 5/(3.4.5) + 7/(4.5.6)
4 answers
478 views
2).Find the sum to n terms of 1/(1.2.3) + 3/(2.3.4) + 5/(3.4.5) + 7/(4.5.6)
0 answers
348 views
How much metal is need to build a trough 6 ft long and 2 feet wide?
1 answer
461 views
How much metal is need to build a trough 6 ft long and 2 feet wide?
1 answer
461 views
It takes a force of 53kN on the lead car of a 16-car passenger train with mass 9.1x 10^5 kg to pull it atconstant 45 m/s on
2 answers
2,308 views
A boy can swim with a speed of 26metre per minute in still water. Be wants to swim across a 150metere wide river from point A to
2 answers
714 views
Integral of XarcsinX dx. ii)X^2.arcsinX dx
4 answers
594 views
A box slides down a 27.7° ramp with an
acceleration of 1.25 m/s². The acceleration of gravity is 9.8 m/s². Determine the
2 answers
733 views
I am currently taking a trig class. I need help understanding how to solve for sin,cos, and tan in problems which give an angle
1 answer
469 views
I have to write a poem or a story for my English class. Do you have any ideas?
6 answers
698 views
A=2600e^0.08^t
% increase each year
1 answer
388 views
5. A piece of rope is cut into two pieces. One piece is used to form a circle and the other is used to form a square. Use a
0 answers
773 views
Use a linear approximation to estimate (8.2)^(2/3)
1 answer
629 views
A student is drinking a milkshake with a straw from a cylindrical cup with a radius of 5cm. if the student is drinking at a rate
2 answers
1,658 views
do you know any other homework help sites that offer instant or live help?
1 answer
348 views
Another question. The floor of Raj's classroom has an area of 525 feet. The room is 12 feet high. What is the volume of Raj's
3 answers
2,843 views
I want to check this. I had used formulas V = B x H and I x w x h to solve these
What is the volume of the box that is 14 inches
3 answers
565 views
Write each of the fractions below as a division expression. Then write each fraction as a whole number or mixed number
(I need
4 answers
2,835 views
From which point of view are the sentences written from Johnny tremain?
It was past dawn when he woke, his feeling of contentment
27 answers
3,079 views
Which type of person is Merchant Lyte?
A kind and generous B crass and sloppy C devious and manipulative D intelligent and
45 answers
11,942 views
Two boats leave at an angle of 25 pie/36 radians, one has a speed of 100km/hr and the second has a speed of 65 km/hr. How far
0 answers
414 views
How do astronomers know whether they are seeing planets or stars when they are distant?
1 answer
486 views
A car is traveling toward you at 40.0 mi/h. The car horn produces a sound at a frequency
of 480 Hz. What frequency do you hear?
8 answers
1,211 views
What frequency is heard by an observer who hears the 450 Hz siren on a police car
traveling at 35 m/s away from her? Assume that
1 answer
692 views
What frequency is heard by an observer who hears the 450 Hz siren on a police car
traveling at 35 m/s away from her? Assume that
1 answer
703 views
What is the wavelength in metres of an electromagnetic wave with a frequency of 10^14/s?
2 answers
555 views
What is the wavelength in metres of an electromagnetic wave with a frequency of 10^14/s?
3 answers
476 views
What is the wavelength of an electromagnetic wave with frequency 50.0 MHz?
Am I starting this problem like this?
1 answer
489 views
What is the wavelength of an electromagnetic wave with frequency 50.0 MHz?
Am I starting this problem like this?
3 answers
907 views
A plane designed for vertical takeoff has a mass of 6.4 ✕ 103 kg. Find the net work done by all forces on the plane as it
0 answers
667 views
A skier of mass 67.0 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 59 m up a 32°
1 answer
1,012 views
How many Btu of heat are required to melt 33.0 lb of ice at 32°F and to raise the temperature
of the melted ice to 72°F?
11 answers
1,108 views
How many grams of water at 20°C are necessary to change 800g of water at 90°C to 50°C?
0 answers
601 views
A 250 g piece of tin at 99°C is dropped in 100 g of water at 10°C. If the final temperature of the mixture is 20°C, what is
0 answers
814 views
Mary mixes 5.00 lb of water at 200°F with 7.00 lb of water at 65.0°F. Find the final temperature of the mixture.
-Specific Heat
0 answers
821 views
Mary mixes 5.00 lb of water at 200°F with 7.00 lb of water at 65.0°F. Find the final temperature of the mixture.
-Specific Heat
0 answers
556 views
A flat-bottom river barge is 30.0 ft wide, 85.0 ft long, and 15.0 ft deep. (a) How many ft3 of water will it displace while the
0 answers
555 views
Find the water pressure at ground level to supply water to the third floor of a building 8.00 m high with a pressure of 325 kPa
1 answer
742 views
Find the water pressure at ground level to supply water to the third floor of a building 8.00 m high with a pressure of 325 kPa
1 answer
1,067 views
What must the water pressure be to supply the second floor (18.0 ft/up) with a pressure of 50.0 lb/in² at that level?
0 answers
577 views
(a) Find the total force on the bottom of a cylindrical gasoline storage tank 15.0 m
high with radius 23.0 m. (b) Find the total
3 answers
887 views
(a) Find the total force on the bottom of a cylindrical gasoline storage tank 15.0 m
high with radius 23.0 m. (b) Find the total
1 answer
679 views
Given f(x)= 3e^(1-x^2)*ln(x), find the equation of the tangent line at x = 1.
1 answer
734 views
A right triangle has a fixed base of length 6 meters and a height that is increasing at a rate of 2
meters/second. At what rate
2 answers
1,538 views
Did I do #2 right?
2.) (1-2i)/2i (1-2i)/2i = (1-2)/i x i/i = (1i-2i)/i^2 = (1i+2) =2+1i
1 answer
318 views
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