08/10/21

Calculus question help please
The tank shown is full of water.(a) Find the work required to pump the water out of the spout. (Use 9.8 m/s2 for g. Use 1000 kg/m3 as the weight density of water. Assume that a = 1.)(b) Suppose... more
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08/02/21

Can someone please answer this question????

The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same thing as weight, but the abbreviation (w/v) is also common.How many grams of sucrose are needed... more
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07/21/21

Can someone please help me with this Geometry problem? I’m really struggling with this one.
Find the distance, in units, from point A (3, 7) to the line x = 9.Can someone please help me with this? I’m not sure how to do this.
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07/19/21

AREA BETWEEN CURVES
Sketch the region enclosed by the given curves. Decide whether to integrate with respect to 𝑥x or 𝑦y. Then find the area of the region.y=1/xy=1/x^2x=3
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07/15/21

Determine the identity of the daughter nuclide

Determine the identity of the daughter nuclide from the electron capture by 23091 Pa.
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07/14/21

theme park math question
A popular ride at a theme park consists of a large wheel that starts in a horizontal position andas the ride picks up its rotational speed the wheel tilts up to a moderate acute angle. A... more
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07/14/21

What would be the rev/min

A simple model of the core of a tornado is a right circular cylinder that rotates about its axis. If a tornado has a core diamete of 160 feet and maximum wind speed of 120mi / h * r (or 176 ft/sec)... more
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07/14/21

Standing Waves Question
A stretched spring is fixed at both ends. Students wiggle the string. They discover that at one frequency, they can create a standing wave with a wavelength of 𝜆A = 0.7000 m. At a different... more
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07/14/21

the null hypothesis is 𝜇=90 and the alternative hypothesis is 𝜇>90  using 𝛼=.05, find the following: (a) Test statistic: (b) P - value:
A random sample of 100 observations from a population with standard deviation 10.26 yielded a sample mean of 91.8.the null hypothesis is 𝜇=90 and the alternative hypothesis is 𝜇>90  using 𝛼=.05,... more
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07/14/21

Calculus Optimization Problem:
A railway company offers excursions of $160 per person for tour groups of up to 50 people. If the size of the group is greater than 50, the company will reduce the price of every ticket by $2 for... more
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07/13/21

Using standard heats of formation, calculate the standard enthalpy change for the following reaction. 2CO(g) + 2NO(g)2CO2(g) + N2(g)
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07/12/21

The carbon (C) in the compound...
The carbon (C) in the compound C3H3Cl5 weighed 66 g. How much did the hydrogen (H) weigh? (C, 12; H, 1; Cl, 35)(A) 3.4 g(B) 1.2 g(C) 66 g(D) 1.375 g(E) none of these
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07/12/21

A capricious Differential equation...
Solve the differential equation.y( x2 + y2 - 1 ) dx + x( x2 + y2 + 1 ) dy = 0
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07/12/21

Solve the equation. (Find all solutions of the equation in the interval [0, 2𝜋). Enter your answers as a comma-separated list.) 4 tan(2x) − 4 cot(x) = 0
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07/12/21

trig substitution for an interval
evaluate the integral: 26(sqrt(x^2 - 25)) / (x^4) dxthe trig substitution for this is: 5sec(theta)1. Which integral do you obtain after substituting for x and simplifying?2. What is the value of... more
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07/12/21

Physics Question Grade 12
Hi, A 36kg block slides 17m on level ground before coming to rest. If 410J of work is done by friction, calculate the coefficient of friction between the block and the ground. Give reason whether... more
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07/09/21

math probability

You roll a fair six-sided die twice. Find the probability of rolling a 1 the first time and a number greater than 2 the second time.
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07/09/21

The standard enthalpy change for the following reaction is 484 kJ at 298 K. 2 H2O(g) 2 H2(g) + O2(g) ΔH° = 484 kJ
What is the standard enthalpy change for this reaction at 298 K? H2(g) + 1/2 O2(g)  H2O(g)
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07/09/21

Calculus Problems
6) In a given community, the number of thousands of people infected with a strain of flu t weeks after the outbreak can be modeled by the function Q(t)= 20.2/1+19.3e^-1.2t.A) How many people were... more
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07/08/21

What would it be ?

Evaluate loga (sqrt(a * x ^ - 7 * y ^ 7)) given that loga (x) = - 6.7 and loga (y) = 3.2
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07/08/21

Coffee Lab Chemisty Lab
I dont get it my professor askedme to perform coffeelab experiment in chem collective: “I dont understand how to get the answer. An eccentric chemistry professor (not mentioning any names) stops in... more
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07/08/21

Chemistry 122 d
A gas is found to have a pressure of 598.609 mm ahh. Calculate the pressure of this gas in atmosphere. (Atm)
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07/07/21

"Q1= +6.60 x 10-6 C, Q2= +3.10 x 10-6 C, and Q3= +5.30 x 10-6 C. What is the magnitude and direction of the net force on charge q2? Q1-Q2=0.350 and q2-q3=0.155?"
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07/07/21

20 Different Socks of Two Types, How Many Picks to Get a Pair 100% Sure
There are 20 different socks, of two types, in a completely dark room. What is the minimum number of socks you should grab to ensure you have a matching pair?
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07/06/21

What would f(x)=?

Find an exponential function of the form f(x) = b ^ (- x) + x that has the given horizontal asymptote and x and y-Interceptsy = - 18 ; y-intercept 864; x - intercet 2
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