04/27/22

Which of the following must be true?
Question #39- Let f be a differentiable function and you're given that the graph of a line tangent to the graph of f is at x=0. Which of the following must be true? ANSWER CHOICES: f'(0)=-f(0),... more
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04/27/22

The nuclear mass of Ti48 is 47.9359 amu. Calculate the binding energy per nucleon for Ti48 .
 Δ𝐸per nucleon:_____ J/nucleon
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04/27/22

In the figure four particles are fixed along an x axis, separated by distances d = 3.00 cm.
In the figure four particles are fixed along an x axis, separated by distances d = 3.00 cm. The charges are q1 = +3e, q2 = -e, q3 = +e, and q4 = +8e, with e = 1.60 × 10-19 C. What is the value of... more
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04/06/22

A vertical dam has a semicircle gate shown in the figure. Find the hydrostatic force against the gate. The water level is 3 m, the gate width is 4 m, and the overall height is 15 m.

I got 563486.28 when solving - please confirm or check answer and solve step by step, I do not just want an answer!!!
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06/23/21

How many protons should be in the beam?
A particle accelerator with a circumference of 7500m needs to transmit a beam of 12 mA protons (q= 6 x 10^19 C) orbiting at (3.0 x 10^8 m/s ).How many protons should be in the beam?
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05/07/21

astronomy college level
What is the brightness ratio, and associated magnitude change for Deneb at 10 pc?1/802 and 2.51/80.2^2 and 9.571/6432 and 2.51/802 and 9.57
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04/13/21

Calculate the following:
Exercise1: For a frequency of 4,000Hz with an amplitude of 2×10⁻⁷ m and 4×10⁻⁷ m in air calculate the intensity. The density of air at 20°C is 1.2 kg/m³ and the speed of propagation in air is... more
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10/19/20

A car starts rolling down a hill from rest. After 3 seconds it is moving at 12 m/s. What is the magnitude of this car’s acceleration?
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09/28/20

Differentiation and Integration of a difficult function
I am an expert and experienced Math and Physics professional. I thought I could use help from Math tutoring community and new ideas for solution of a difficult problem.∫.Given that y =... more
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08/10/20

This is a trick question: “ The answer is locked inside the treasure chest. What do you require to unlock the chest? “
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07/28/20

Veena is the owner of ‘Smoke and Bake” restaurant. On average, Veena makes $825 per week at her restaurant with a standard deviation the rest of the question is below
Veena is the owner of ‘Smoke and Bake” restaurant. On average, Veena makes $825 per week at her restaurant with a standard deviation of $ 72.20. What percent of the time will the weekly sales be... more
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06/16/20

please HELP me with this work
Find the values of α and β such that the function f(x) = ( α cos x + 2 if x < 0 βe^3x + αx^2 if x ≥ 0 is continuous on the interval (−∞,∞). (b)For which values of α and β is the function f(x)... more
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05/27/20

Identify the conic section that the given equation represents. x^2 − 3xy + 5y^2 − 28x + 16y − 30 = 0

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05/11/20

Vectors Math Problem
Let point C = (−2, 5), point D = (3, 8), and point E = (4, −1).​Define u =  and v = . a.​Sketch vectors u  and  v .​b.​Sketch vector u + v  and compute it algebraically. Does this agree with your... more
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04/29/20

Use implicit differentiation to find dy/dx .
Use implicit differentiation to find dy/dx .ln(y) − 4x ln(x) = −8
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04/29/20

Find an equation of the tangent line to the graph of y = e−x2 at the point (5, 1/e^25)
Find an equation of the tangent line to the graph of y = e−x2 at the point (5, 1/e^25)
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04/28/20

Assume that the number of network errors experienced in a day on a local area network (LAN) is distributed as a Poisson random variable.

The average number of network errors experienced in a day is 2.4. What is the probability that in any given daya. Zero network errors will occur?b. Exactly one network error will occur? c. Two or... more
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04/23/20

Probability of matching letter with marked envelopes
Seven envelopes are marked with letters A thru G. Seven letters marked with the same letters are given to a blind person for inserting one letter in each envelope. What is the probability that the... more
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04/20/20

Physics Question (Description)
A place kicker must kick a football from a point 36.0 m from the goal and the ball must clear the horizontal crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of... more
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04/16/20

Equation of Hyperbola — Help!!
Hi! please help me!Question:A light on a wall produces a shadow in the shape of a hyperbola. If the distance between the two vertices of the hyperbola is 10 inches and the distance between the two... more
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04/14/20

Series & Minimum/Maximum
Let Vr = (Ur+1)^2 - (Ur)^2 , where Ur+1 & Ur denote the r+1th and rth term of a sequence where Ur>0It is given that Sigma(from r=1 to n) Vr = [ (n-2)((2n-3)]/ (n^2 + 1) , where n>= 1 and... more
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12/09/19

Neutrino cosmology problem

Assume there are one billion neutrinos for every proton. Using the limits on baryon density given by big bang nucleosynthesis, and assuming a Hubble constant of 70 km s−1 Mpc−1, how massive would... more
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08/12/19

Find Taylor series of function
Find Taylor series of function f(x)= ln(x) at a=9f(x) = Sum (n=0 to inf)C0=C1=C2=C3=C4=Find the interval of convergence. The series is convergent: from x= __ left end, included (yes or no)to x=__... more
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08/09/19

What is the difference between Computer Engineering(Coe) and Computer Science Engineering (CSE)?
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08/08/19

What is the basic difference between computer and laptops?
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