01/26/24

physics question
Use these numbers: Q2 = -500 nC. When the second particle is placed on the x-axis at x = +27.0 cm, it experiences a force of 1.20 N in the positive x-direction. When the second particle is moved to... more
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01/25/24

to determine how far apart a boar is from shore, two radar stations 500 feet apart determine the angles out of the boat as shown. Find the distance of the boat from station A.
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01/24/24

Physics problem: torque of forces
I came across this task on a website and have been curious about its solution, but I’m having trouble figuring it out:First, let's assume that the springs barely stretch.A long, rigid pallet of... more
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01/23/24

Find a function that gives the number of bacteria present in the colony after t hours.

Suppose that a colony of bacteria starts with 1 bacterium and doubles in number every half an hour. (a) Find a function that gives the number of bacteria present in the colony after t hours. (b)... more
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01/23/24

physics question (please show work)
You have two identical metal spheres (identical aside from their net charges, that is). Sphere A has a net charge of +11.0 nanocoulombs, while sphere B has a net charge of -3.00 nanocoulombs. The... more
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01/23/24

The field just outside a 1.70 cm-radius metal ball is 3.75×10^2 N/C and points toward the ball.
What charge resides on the ball?Express your answer to three significant figures and include the appropriate units.
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01/21/24

determine the point of inflection, if it exists, on the graph of f(x)=5x^3+4x^(5/2)
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01/20/24

1.291 g sample contains only vitamin C and sucralose. What is the mass percent of Vitamin C and sucralose in the sample?
1.291 g sample contains only vitamin C and sucralose. When the sample is dissolved in water to a total volume of 44.4 ml, the osmotic pressure of the solution is 3.21 at 291 K. What is the mass... more
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01/13/24

answer question
The total radiation energy E emitted by a heated surface per unit area varies as the fourth power of its absolute temperature T. The temperature is 6,000 K at the surface of the sun and 600 K at... more
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01/11/24

Names and Formulas of Ionic Compounds
Why do these elements in the formulas need to be in parentheses?Ba3(PO4)2(NH4)2OFe(ClO)3
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01/11/24

How many grams are in 4.5 moles of NaF?
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01/11/24

Variable capacitor
I came across an interesting task in a post:A variable capacitor, whose initial capacity is C, is charged to a voltage U and then short-circuited through a resistor R.1. Determine the ratio of the... more
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12/31/23

Find 𝑑^2𝑥/𝑑𝑥^2 by implicit differentiation y ^ 2 + x ^ 2 = e ^ sqrt(sin(xy) + ln(xy))
Find 𝑑2𝑥/𝑑𝑥2 by implicit differentiation y2+ x2 = e sqrt(sin(xy) + ln(xy))
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12/18/23

About imaginary numbers
How would I solve a question that said what type of number results from i4?
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12/16/23

Use L’Hopitals Rule to evaluate the following limits lim (ln 𝑥)^𝑥−1 𝑥→1
Use L’Hopitals Rule to evaluate the following limits lim 𝑥→1(ln 𝑥)𝑥−1
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12/16/23

ap physics 1 proportional reasoning
\ An object accelerates from rest at a rate 2A from time t=0 to t=3T . it then accelerates at a new rate 4A from time t=3T to t=5T. What expression represents the displacement of object over time... more
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12/16/23

Find 𝑑^2𝑥/𝑑𝑥^2 by implicit differentiation 𝑦^2 + 𝑥^2 = 𝑒 √sin 𝑥𝑦+ln 𝑥𝑦
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12/04/23

Find the area of the region bounded by the graphs of the given curves
y=x/3 and x/(x^2+1)
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12/03/23

Set up and calculate a definite integral giving the total force on the dam.
If the width w=3620m, height h=110m, and base width b=3100 m, which are approximately the dimensions of the Aswan Dam in Egypt. Use density p=100kg/m^3 and g=9.8 m/s^2.
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12/03/23

Doubling the coefficients of a reaction doubles it ∆H°rxn. True or false?
Doubling the coefficients of a reaction doubles it ∆H°rxn. True or false?This question is regarding physical chemistry. Thank you so much.
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11/15/23

HELPPPPPPPPPPPPPP
The area of a rectangular field is 8148m^2.If the width of the field is 84m, what is its length?
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11/14/23

Finding critical points

Find all critical points for the function f(x)=x^2 + 54/x
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11/11/23

Nernst equation chemistry of electrochemical cell
Calculate the reaction constant of an electrochemical cell at 298K using the Nernst equation. All concentrations of ions are standard at 1.00M:1.) Ca +Cu^+2 < Ca^+2 + Cu( I am not sure which... more
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11/10/23

Impulse-momentum change
Tyrone, South's 76.8-kg halfback, is moving with a speed of 6.37 m/s when he collides mid-air with New Greer Academy's middle linebacker. If Tyrone experiences a resistive force of 888 N over a... more
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10/31/23

Using the information in the table, the value of the rate constant for the reaction A(g) + 3 B(g) → C(g) + 2 D(g) is
Problem Table[A]₀ (M)[B]₀ (M)Rate (M/min)0.3000.1800.02340.3000.3600.09340.1500.1800.0234It wouldnt let me paste the picture so the first [A] is the first three numbers, second [B] is the second... more
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