03/16/22

Can someone please answer this.

If a certain object has a density of 0.29 g/cm3, what is its specific gravity?When this object is placed in water, what percentage of the object will float below the surface of the water?%
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03/16/22

I need help to answer this problem
A company prices its tornado insurance using the following assumptions:• In any calendar year, there can be at most one tornado. • In any calendar year, the probability of a tornado is 0.04. • The... more
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03/16/22

Higher chemistry unit 3
5Chemicals are used to remove the carbon dioxide breathed out by the crewin spacecraft.(a) In Apollo spacecraft, lithium hydroxide was used to remove carbon dioxide.2LiOH(s) + CO₂(g) → Li₂CO3(aq) +... more
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03/15/22

Would it increase the acid concentration?
The actual concentration of the NaOH used was 0.125 M, how would this error affect the calculation of the Molarity of an unknown acid?
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03/15/22

Please show all the steps step by step so I can understand!
An electronics manufacturer recently created a NEW version of a popular device. It also created this function to represent the profit, P(x), in tens of thousands of dollars, that the company will... more
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03/15/22

Calculate the energy in joules and the wavelength in nanometers of the spectral line produced in the hydrogen spectrum when an electron falls from the tenth Bohr orbit to the fourth
Calculate the energy in joules and the wavelength in nanometers of the spectral line produced in the hydrogen spectrum when an electron falls from the tenth Bohr orbit to the fourth. In which... more
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03/14/22

The force acting on a 10 kg particle is Fx = Fo*e^(-x/L). Where Fo=10N.
The force acting on a 10 kg particle is Fx= F0e-x/L. Where F0=10N. How much work does this force do as the particle moves along the x axis from x=0 to x=L? What’s the velocity of this particle at... more
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03/14/22

Solving for range with Arc Length Integral
I encountered an interesting problem beyond my skill level, which is thisSOLVE FOR bL = ∫ab √(1+(2wx)2) dxIn which I need to solve for b, but I don't know how to do that yet.If anyone can help I'd... more
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03/14/22

Physics: Coulombs Law

What is the magnitude of the electric force of attraction between an iron nucleus (q = +26e) and its innermost electron if the distance between them is 1.5 x 10-12 m? e = - 1.6 x 10-19 Cpls include... more
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03/14/22

Calculate the mass of Carbondioxide when 2g of Sodium Bicarbonate reacts in a vinegar and baking soda reaction

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03/13/22

Physics Question
A metal block with mass m = 10 kg is connected by a cord wrapped around a 1.5-kg hollow cylinder pulley with a frictionless axle. The surface of the incline has a coefficient of friction μk = 0.60.... more
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03/13/22

Find the potential difference between Q and -Q at a distance of 4 m and the velocity of a point charge from point A to B.
Two charges, Q and -Q, are held stationary at a distance of 4 m. Q= 5x10^-6 is given. a) What is the potential difference VB-VA? b) A point charge of mass 0.3 g and charge 2x10^-6 C, initially at... more
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03/13/22

Find two positive numbers satisfying the given requirements.
The product is 210 and the sum is a minimum.smaller value?larger value?
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03/13/22

a person takes 100 mg of sertraline every day at the same time. before each dose, 67% of the drug remaning in the gut is passed to the blood. suppose on day 1 they take their first dose.

write a recursive sequence describing the amount of drug in their gut after the nth dose.
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03/13/22

Use Newton's Method to approximate the zero(s) of the function.
Continue the iterations until two successive approximations differ by less than 0.001. Then find the zero(s) to three decimal places using a graphing utility and compare the results.f(x) =... more
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03/13/22

Born-Haber cycle exercise
Calculate the lattice energy of CuBr(s) using a Born-Haber cycle. Enthalpy of sublimation of Cu(s) = 337.7 kJ/mol 1^st ionization energy of Cu(g) = 745 kJ/mol Enthalpy of vaporization of Br_2 (l) =... more
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03/13/22

Water draining from a tank

The tank holds 3500 gallons of water. The volume of the tank is given by v=3500(1-(t/50))^2, t between 0 and 50A) At what time is the water flowing out the fastest?B) The slowest? Thank you!
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03/13/22

Projectile Motion Problem
The left field wall in Fenway Park in Boston is 315 ft from home plate and is 37 ft high. (a) Can a baseball hit with an initial speed of 125 ft/sec clear the wall? What angle is required to do... more
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03/13/22

Use two terms of a Maclaurin series to estimate this integral, and predict your error using the Alternating Series Estimation Theorem.

∫ x^2 * sin(x^2) dxUse two terms of a Maclaurin series to estimate this integral, and predict your error using the Alternating Series Estimation Theorem.Please include formulas so I can follow... more
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03/12/22

Precalculus Matrices Transformations Problem
A transformation rotates about the origin by an angle of  counter-clockwise, then dilates (with center at the origin) by a factor of  Find the matrix for this transformation.Any help would be... more
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03/12/22

Equation function
A car was valued at $39,000 in the year 1993. The value depreciated to $12,000 by the year 2006.A) What was the annual rate of change between 1993 and 2006?r =  Round the rate of decrease to 4... more
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03/11/22

Whats the process of solving this?
A chemist measures the enthalpy change ΔH during the following reaction:2Na+Cl2→2NaCl ΔH=-822KJUse this information to complete the table below. Round each of your answers to the... more
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03/11/22

Directional Derivative Question
Giv‎en h(x, y, z) = 4√ x + ln (y2+z2+1)a) Find ‎the direct‎ional der‎ivative of h at the po‎int (1, 0, −1) along the dire‎ction of <−1, 2, 2>. (b) Su‎ppose x = et y = tan tz = t3 − t − 1... more
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03/11/22

A problem is given to three persons P, Q, R whose respective chances of solving it are 2/7, 4/7, 4/9 respectively. What is the probability that the problem is solved?
A problem is given to three persons P, Q, R whose respective chances of solving it are 2/7, 4/7, 4/9 respectively. What is the probability that the problem is solved?https://starofgeeks.com
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03/11/22

Binomial Distribution
After being rejected for employment, Kim Kelly learns that the Bellevue Credit Company has hired only four women among the last 22 new employees. She also learns that the pool of applicants is very... more
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