Rony

This page lists questions and answers that were posted by visitors named Rony.

Questions

The following questions were asked by visitors named Rony.

The number of Pb atoms per unit cell

a potential difference of 0.90 V exists from one side to the other side of a cell membrane that is 5.0 nm thick. What is the electric field across the membrane?

What is the force between two charged spheres 1.25 cm apart if the charge on one sphere is 2.50 C and the charge on other sphere is 1.75 X 10^-8 C

Two resistors, one 12Ohms and the other 18 Ohms, are connected in parallel. What is the equivalent resistance of the parallel combination?

A 15.0 Ohms resistor is connected in series to a 120V generator and two 10.0 Ohms resistors that are connected in parallel to each other. -What is the total resistance of the load? -What is the magnitude of the circuit current? -What is the current in one...

Resistors R1, R2, and R3 have resistances of 15.0 Ohms, 9.0 Ohms and 8.0 Ohms respectively. R1 and R2 are connected in series, and their combination is in parallel with R3 to form a load across a 6.0-V battery. -What is the total resistance of the load? -...

The weekly rental cost of a 20 foor recreational vehicle is $129.50 plus $0.15 per mile. -Find a linear function that express the cost C as a function miles driven m. - What is the rental cost if 860 miles are driven? -How many miles were driven if the re...

Find the zeros of f(x)=(x-1)^2 + 5(x-1)+4

find, to the nearest minute, the angle whose measure is 3.45 radians.

the expression cos4x cos3x + sin4x sin3x is equivalent to which one of the following is the answer: 1) sinx 2) sin7x 3) cosx 4) cos7x

A circle has a radius of 4 inches. In inches, what is the length of the arc intercepted by a central angle of 2 radians? which of the following is the answer: 1) 2 radian 2) 2 3) 8 radian 4) 8

If θ is an angle in standard position and its terminal side passes through the point (−3,2), find the exact value of cscθ . I know the answer...but i want to know how you get the answer... The answer is radical 13/2

If a is an angle in standard position and its terminal side passes through the point (-3,2), find the exact value of csc a. Answer: radical 13/2

The Vietnam Veterans Memorial in Washington, D.C., is made up of two walls, each 246.75 feet long, that meet at an angle of 125.2°. Find, to the nearest foot, the distance between the ends of the walls that do not meet.

the playground at a daycare center has a triangular-shaped sandbox. Tow of the sides measure 20 feet and 14.5 feet and form and included angle of 45 degree. Find the length and the third side of the sandbox to the nearest tenth of a foot.

Answers

The following answers were posted by visitors named Rony.

r is equal 1.25cm

i know when its paralle 1/Req= 1/R1 + 1/R2...

some one help me with this question..plz.. Thank You.

Find the real zeros of f(x)=(x-1)^2 + 5(x-1)+4

it is cosx thanks

i know the answer...it is 197º40’ but i want to know how you get the answer... some one plz help... thanks

i know... a^2=b^2+c^2-2bc cos A but i didn't get the correct answer...which is 14 is it like a^2=20^2+14.5^2-2(20)(14.5) cos135

Please display answer here

F = MA F = qv*B ma = qvb a = qbv/m m = mass of electron q = charge of electron

C1V1=C2V2 law can be applied because the ratio is 1:1

45g/36.5g/mol= 1.233mola*1000/1500= 0.822M

Final conc=(Initial volm 1.0mL*initial conc 0.1M)/(Final volm 10mL)= 0.01M Ans=0.01M