05/11/21

An unknown gas has an unknown volume and an known temperature of 100 degrees Celsius.
What was the initial volume if the new volume if 2.1 Land the temperature decreases to 30 degrees Celsius? Always convert temperature to Kelvin unless it is already in Kelvin: (Celsius... more
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05/11/21

A block of aluminum weighing 140.0 grams is cooled from 98.4C to 62.2C with the release of 4428J of heat. Calculate the specific heat of aluminum.
Use q=mcAt to solve this physics problem.
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05/11/21

Calculate the temperature change for mercury if 160 g of the metal absorbs 1,500 J of heat energy. Mercury’s specific heat is 0.14 J/goC.
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05/11/21

Algebra 1 Word Problem
Three brothers participate in a 100m dash. When Allen finishes, Bernie has only completed 80m. When Bernie finished, Chuck had only completed 90m. The brothers would like to race again, so that all... more
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05/11/21

What is the difference in volume between A) 2.591 g of carbon monoxide at 465 K and B) the same mass of carbon dioxide at 301 K if they are both at 94.2 kPa? Answer needs to be rounded to 3 sig figs.
Do not understand this question
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05/11/21

Find the derivative of g(x)=x2log3√(x-1).
Find the derivative of g(x)=x2log3√(x-1). Please show all steps.
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05/11/21

Geometry question

If tan x = 5/6 , find the value of x to the nearest degree.
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05/11/21

Geometry question

Harry is standing 30 feet from the base of a building . The angle of elevation of the top of the building is 80 degrees Find the height of the building to the nearest foot .
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05/11/21

How do I find the surface area of the figure at the right to the nearest whole number?
The figure is a cylinder with measurements of the radius= 6mm the height = 8mm and there is a cone on top of the cylinder with a measurement of the slant height being 7mm. There’s also a hint I was... more
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05/11/21

Solve the following equation.

Solve the following equation. cos^2 x + cos x=0
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05/11/21

Find the exact value of sin(u+v) given that sin u=7/25 and cos v=-12/13
Find the exact value of sin(u+v) given that sin u=7/25 and cos v=-12/13(Both u and v are in Quadrant 2)
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05/11/21

Find all solutions of the given equation in the interval [0,2n)

Find all solutions of the given equation in the interval [0,2n) 1/2 sin 2x = cos x
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05/11/21

Find the expression as the sine or cosine of an angle
Find the expression as the sine or cosine of an anglecos 9x cos 5y + sin 9x sin 5y
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05/11/21

Simplify the expression algebraically

Simplify the expression algebraically 4 tan( ∏/4-θ)
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05/11/21

Calculate the pressure of a helium sample at -207.3°C and 768 mL if it exerts a pressure of 175 kPa at 25.0°C and 925 mL
Calculate the pressure of a helium sample at -207.3°C and 768 mL if it exerts a pressure of 175 kPa at 25.0°C and 925 mL SHOW ALL WORK
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05/11/21

The piston of an internal combustion engine compresses 573 mL of gas.
The final pressure is 15 times greater than the initial pressure. What is the final volume of the gas, assuming constant temperature? Answer in units of mL.
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05/11/21

Determine the wavelength
A wave on Lake Houston passes by two docks that are 30.0 m apart. If there is a crest and each dock, and another four crests in between the two docks, determine the wavelength. a. 6 mb. 20 mc. 30... more
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05/11/21

Coulombs law Physics
FORMULA: K*Q1*Q2/R^2keep in mind: the charge of a proton (and the negative charge of an electron) is equal to 1.60218 * 10^-19 C1. What is the force between a proton and an electron which are 1... more
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05/11/21

If sinθ = −0.5603, determine all values of θ, to the nearest degree if 0°  θ  360°
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05/11/21

How many grams of HBO2 are produced from 5.32 moles of B2H6
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05/11/21

How many moles of HbO2 are produced from 8.43 moles of oxygen gas?
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05/11/21

what is the answer
A cost function is given for a certain product. Find the marginal cost function.C(x)=2000+3x+0.01x2+0.0002x3
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05/11/21

A 0.5-m high toddler is playing 10 m in front of a concave mirror with radius of curvature of 7 m. What is the location of his image? What is the height of his image?
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05/11/21

According to the Work Kinetic Energy Theorem .......
According to the Work Kinetic Energy Theorem .......A.work done on an object equals the kinetic energy gain or loss by the objectB.Wnet = ΔKEC.A farmer heaves a 7.56 kg bale of hay with a final... more
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05/11/21

If each half life of a C14 isotope is 5730 years, how many years does it take for an 80 g sample to decay to 10 g
If each half life of a C14 isotope is 5730 years, how many years does it take for an 80 g sample to decay to 10 g
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