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Dani

Questions (192)

Calculate the velocity of a satellite moving in a stable circular orbit about the Earth at a height of 2600 km.
1. 3 answers
2. 2,244 views
Find the force of tension in the chain. Determine the force of compression in the support bar. Be sure to include a free body
1. 0 answers
2. 496 views
A ramp leading up to a loading platform is 3 m long and 1 m high at its highest point. If the friction is ignored, what work is
1. 1 answer
2. 2,425 views
In this problem they show a diagram of a pulley system with an inclined plane (25 degree incline). There is a box called m1=47kg
1. 2 answers
2. 561 views
How many moles of oxygen are produced from the decomposition of 3.4g of hydrogen peroxide?How many molecules of O2 are produced?
1. 2 answers
2. 2,488 views
A weekly order is 10 gallons of coke to 15 gallons of 7up. What is the ratio of 7up to coke?
1. 1 answer
2. 364 views
A road map uses a scale of 3 cm for every 5 miles. How many miles are there in 9.5 cm?
1. 1 answer
2. 355 views
What is the volume of a scuba tank if it takes 2000 L of air collected at 1.00 atm to fill the tank to a pressure of 150 atm? T
1. 2 answers
2. 1,107 views
A hot-air balloon has a volume of 4.000 x 10^5 L at 30 degrees celsius and a pressure of 748 mmHg. If the average molar mass of
1. 1 answer
2. 721 views
Apply the gas laws to determine how many grams of sodium azide (NaN3) are needed to fill the air bag of your vehicle to a volume
1. 1 answer
2. 692 views
The combustion of methane can be described by the equation:CH4 (g) + 2 O2 (g) -> CO2 (g) +2H20 (g) If 22.0 mL of CO2 (g) were
1. 1 answer
2. 539 views
a helium balloon is partially filled with 28.7 L of gas at 25.0 degress celcius and a pressure of 1 atm. if the balloon is
1. 1 answer
2. 649 views
Predict whether nitrate salt solutions containing metal ions with the following outer shell electron configurations will be
1. 1 answer
2. 428 views
write a product of two trig functions that equals 1.
1. 1 answer
2. 392 views
Potassium, K, is more reactive than sodium, Na. Calcium, Ca, is less reactive than sodium. The comparative reactivity of these
1. 1 answer
2. 636 views
The profit for a new product is given by Z = 2X - 2Y - 7. We know that X and Y are independent random variables with Var(X) = 2
1. 0 answers
2. 402 views
Is 1 greater than or less than negative 1?
1. 2 answers
2. 756 views
the activity series of metals is:Au < Ag < Cu < Sn < Cd < Zn < Al < Mg < Na < Cs which reaction below occutrs spontaneously
1. 0 answers
2. 893 views
You observe that when copper is added to a soltion containing gold ions, the copper dissolves and the gold precipitates.
1. 2 answers
2. 1,313 views
Unrelated species may come to resemble one another over many generations due to
1. 1 answer
2. 401 views
what is (5x^2-4)+(-3x^2-9)?thanks
1. 1 answer
2. 563 views
An arrow is shot at a 30 degree angle with the horizontal. It has a velocity of 49m/s. The acceleration of gravity is 9.8 m/s2.
1. 0 answers
2. 1,103 views
An arrow is shot at a 30 degree angle with the horizontal. It has a velocity of 49m/s. The acceleration of gravity is 9.8 m/s2.
1. 0 answers
2. 1,095 views
An arrow is shot at a 30 degree angle with the horizontal. It has a velocity of 49m/s. The acceleration of gravity is 9.8 m/s2.
1. 2 answers
2. 3,637 views
Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two
1. 2 answers
2. 780 views
3(7-4)^2??
1. 1 answer
2. 231 views
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 402 N and F2 = 364 N.
1. 7 answers
2. 24,763 views
Two objects with masses of 1.00 kg and 7.00 kg are connected by a light string that passes over a frictionless pulley as in the
1. 0 answers
2. 839 views
An outfielder throws a 0.150 kg baseball at a speed of 26.0 m/s and an initial angle of 30.0°. What is the kinetic energy of
1. 1 answer
2. 3,425 views
A 7.80-g bullet moving at 530 m/s penetrates a tree trunk to a depth of 6.2 cm.(a) Use work and energy considerations to find
1. 2 answers
2. 2,212 views
A ski jumper starts from rest 51.0 m above the ground on a frictionless track and flies off the track at an angle of 45.0°
1. 1 answer
2. 1,150 views
A rifle with a weight of 30 N fires a 3.0 g bullet with a speed of 250 m/s.(a) Find the recoil speed of the rifle. (b) If a 675
1. 0 answers
2. 1,234 views
A cannon is mounted on a railway flatcar, the muzzle elevated to 31.4° and pointed in the direction of the track. The cannon
1. 1 answer
2. 683 views
An electric motor rotating a workshop grinding wheel at a rate of 95 rev/min is switched off. Assume the wheel has a constant
1. 3 answers
2. 6,806 views
A 55.0 kg ice skater is moving at 4.04 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole.
1. 0 answers
2. 884 views
objects with masses of 285 kg and a 585 kg are separated by 0.420 m.(a) Find the net gravitational force exerted by these
1. 0 answers
2. 642 views
A solid, horizontal cylinder of mass 8.0 kg and radius 1.30 m rotates with an angular speed of 5.50 rad/s about a fixed vertical
1. 0 answers
2. 729 views
Lawrence records the number of minutes he reads each day show belowDay 1: 75 mins Day 2: 30 mins Day 3: 25 mins Day 4: 50 mins
1. 1 answer
2. 525 views
Triangle ABC is an obtuse triangle with two congruent angles. If m< C = 108 write an expression that represents m<A
1. 1 answer
2. 601 views
Tent. sudut yang lebih kecil dari perpotongan bidang 5x-14y+2z-8=0 dan 10x-11y+2z+5=0 (tent sudut antara normal-normalnya)
1. 2 answers
2. 422 views
The temperature at any point in the plane is given by function f(x,y) = 100/(x^(2)+y^(2)+1). Find a direction at the point (3,2)
1. 0 answers
2. 934 views
The directional derivative of z = f(x,y) at (2,1) in the direction toward the point (1,3) is -2/sqrt(5), and the directional
1. 1 answer
2. 867 views
A rectangular flower is 20 inches long,8 inches wide ,and 6 inches high .True of false. If andy fills the flower pot 2/3 full of
1. 1 answer
2. 489 views
A 14,245N auto with a velocity of 6.0m/s crashes into a brick wall. If the car moves 64.0 cm before coming to a stop, what
1. 0 answers
2. 489 views
A 14,245N auto with a velocity of 6.0m/s crashes into a brick wall. If the car moves 64.0 cm before coming to a stop, what
1. 1 answer
2. 971 views
How many kilojoules of heat is required to completely covert 60.0 grams of water at 32.0° C to steam at 100°C?For water: s =
1. 1 answer
2. 614 views
4 NH4NO3 -> 8 H2O + 4 N2 + 2 O2What will be the total volume in liters of gas produced at 720. mm Hg and 570.0°C when 2.50 g of
1. 2 answers
2. 604 views
explain why a single5 500 kg block of granite weathers much more slowly than 100 chunks of granite weighing 5 kg each.
1. 1 answer
2. 566 views
_______7m______|\ / | | \ 2.8m 2.8m / | | \ / | | n \ / | | / \ n | | / \ | | / \ | / 2.8m 2.8m \ | ____________ \ | Find the
1. 1 answer
2. 462 views
This irregular shape has 2m,2m,2m, 3m, 4m, 7m_2m_ _2m_ | |2m__3m_| | | | |________| 4 m 7 m how would I find the area if you
1. 0 answers
2. 431 views
A= 10,560 ft x 2 mi
1. 1 answer
2. 322 views
Find the measures of two supplementary angles if the difference of their measures is 56 degreesI know supplementary angles are
1. 4 answers
2. 2,801 views
A= 5 m x 200 cmA= 500 cm x 200 cm A= 100000 cm2?
1. 2 answers
2. 446 views
How do areas of two parallelgrams compare when the dimensions of one are three times the demensions of the other?
1. 2 answers
2. 363 views
A= 100 cm x 1 mA= 100 cm x 100 cm A=10000 cm2?
1. 1 answer
2. 389 views
A= 0.5 m x 20 cm
1. 4 answers
2. 315 views
A square with an top as 100cm and a side with 1 mA= b x h A= 100 x1 A= 100 cm2 or m2?
1. 3 answers
2. 384 views
Why is it that an Aneriod Barometer Can be used to measure elevation as well as air pressure?
1. 1 answer
2. 323 views
1.A(an)_________________ barometer Has a closed space surrounded by metal2.A(an)_________________ barometer Has a glass tube
1. 5 answers
2. 723 views
1. an insturment used to measure air pressure is a(an)___________________________________.
1. 5 answers
2. 363 views
i need some serious help with limits in pre-calc.here are a few questions that i really do not understand. 1. Evaluate: lim
1. 1 answer
2. 1,136 views
Give an estimate for each expression in Exercises, Thenstate whether you believe that the exact answer is greater than or less
1. 1 answer
2. 623 views
Can you find both multitasking system and a multiprocessing system operating system?
1. 1 answer
2. 464 views
I have one more step in my question. I have to Find the value of 10^-2.4 by putting this value in a calculator.I do not have a
1. 2 answers
2. 374 views
Evaluate The Logarithmic Equation For 3 Values Of X Greater Than -1 3 Between -2&-1 &x=-1 Y = Ln(x + 2)Y = Ln(x + 2)
1. 0 answers
2. 398 views
Evaluate The Exponential Equation For 3 Positive, 3 Neg. Values Of X &x=0 Y=3^-x"Y=3^-x,x=3y=1/27, x=-3,y=27,x=0,y=1.
1. 2 answers
2. 433 views
solve using the quadratic formula.3x^2/4 - 1x/4 - 1/2 = 0
1. 1 answer
2. 317 views
Graphing Quadratic FunctionsFind any x-intercepts and the y-intercept. If no x-intercepts exist, state this g(x)=2x^2+3x-1
1. 0 answers
2. 499 views
How do you solve the quadratic formula9 over 8 - 2 =5 over x^2
1. 2 answers
2. 336 views
How do you solve the quadratic equation7x^2-5=0
1. 2 answers
2. 391 views
Quadratic formulasolve 9 over 8 - 2= 5 over x^2
1. 0 answers
2. 324 views
How do you solve the Quadratic equation7x^2-5=0
1. 1 answer
2. 345 views
Determine wheter each pair of equations represent paralle lines. Show work3x=5y-2 10y=4-6x
1. 1 answer
2. 433 views
Solve using the substitution method and state if the system has a solution.4p-2q=16 5p+7q=1
1. 2 answers
2. 408 views
The pH of a nitric acid solution is 1.2. What is the concentration of nitrate ion in the solution?Any help would be greatly
1. 1 answer
2. 484 views
What were some 80's icons?I have a project that's on the most important political and environmental events in the U.S during the
1. 2 answers
2. 529 views
Atoms stick together in bonds to form molecules. What is responsible for this sticking?Thank you.
1. 1 answer
2. 354 views
I'm designing my energy transformation for my rube goldberg project, and i can't seem to figure out how to design some of them.
1. 1 answer
2. 446 views
What's an idiom, simile, or metaphor for getting back at someone?
1. 1 answer
2. 458 views
What is a simile, idiom, or metaphor for relief?
1. 29 answers
2. 20,053 views
How did the Chernobyl disaster affect the U.S? Did it at all?
1. 1 answer
2. 787 views
I need to know how to set up this problem:A salesman drives from Ajax to Barrington, a distance of 120 miles, at a steady speed.
1. 2 answers
2. 2,895 views
On April 1, 2008, Company issued $600,000, 9% bonds for $645, 442 including accrued interest. Interest is payable annually on
1. 0 answers
2. 546 views
What were some problems during the Renaissance.I am supposed to make an invention to help people during the renaissance.
1. 1 answer
2. 692 views
what are the main differences between a chain formed at a divergent plate boudary and those developed at convergent plate
1. 1 answer
2. 557 views
what are the main differences between a chain formed at a divergent plate boudary and those developed at convergent plate
1. 1 answer
2. 591 views
how is the andean type subduction zone different from the aleutian type subduction zone? are there pictures?
1. 1 answer
2. 573 views
what mountain chain has formed at a divergent plate boundary?
1. 1 answer
2. 547 views
I have to read "Farewell To Manzanar" and come up with ten ways that Jeanne searches for herself in the story. So far, I've only
1. 1 answer
2. 569 views
how old was a person exaactly one year ago is exactly x years ago the person was y years old?choices y-1 y-x-1 x-y-1 y+x+1 y+x-1
1. 1 answer
2. 577 views
I'm doing a project on human population growth and the ecosystems. Does anyone know of any good websites that explain how china
1. 2 answers
2. 613 views
I need to know how to find the meausure of a triangle using vertical angles, and also how to measure a triangle using linear
1. 0 answers
2. 963 views

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