Questions Asked on
October 19, 2019

chemistry
the compound al2o3 contains 53% metal ,what is the relative atomic mass of aluminium
asked by lweendo 
Chemistry
What volume of glycerine C3H8o3. Density 1.26g/ml, should be taken to obtain 2.50mol of glycerine
asked by Lumamba 
Math
Complete each statement with the appropriate measurement or symbol. 48 c = _ qt 96 oz _ 5 lb 6 yd, 1 ft = ft 6 1/2 lb = _ oz
asked by Cup of Tae w/ Suga 
history
James Oglethorpe's decision to recruit Highland Scots to establish a settlement on the Altamaha River is evidence of which of the following reasons for colonization as described in the Charter of 1732? Economic  The Highland Scots were slave holders who
asked by ???? 
Probability
Of the 1286 students enrolled at the community college last fall, 367 registered early. Based on this data which approach would be best to find the probability of students who will register early this fall? classical approach subjective approach***
asked by Ember Lovet 
U.S. Studies
What were the two groups that emerged after the constitutional convention? What did each group want?
asked by Spencer 
Geometry
AB ∥ DC, DE ⊥ AB , AD = BC, m∠ADC = 134° AD = 40, DC = 32, ABCD is a trapezoid. Find: Area of ABCD
asked by Simba 
Social Studies
1.Which is one reason there was conflict between the colonists and Britain?
asked by user 
chemistry
A 2.118 g sample of a solid mixture containing only potassium carbonate ( MM=138.2058 g/mol ) and potassium bicarbonate ( MM=100.1154 g/mol ) is dissolved in distilled water. A volume of 30.20 mL of a 0.763 M HCl standard solution is required to titrate
asked by mike 
Math
find the volume bounded by the parabolic cylinder z=4x^2 and the planes x=0, y=0, y=6 and z=0 I just want some help figuring out the limits of this question : So for z, we have to integrate from z=0 to z=4x^2 (am i right?) W.r.t. y, we should integrate
asked by Aryaa 
English
what are the principle parts of verbs a. the base forms of verbs with no endings added b. the present, present participal, past, and past participal of verbs***** c. the most common verbs of the most common verbs d. action, linking, regular and irregular
asked by wyatt love harry potter 
Physics
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 453 N and F2 = 400 N. (Assume up and to the right as positive directions.)(F1 is 8degrees and F2 is 35degreed) (a) What is the resultant of these two
asked by Anonymous 
Physics
I need the answers Fx = 453 cos 8 + 400 cos 35 Fy = 453 sin 6 + 400 sin 35 F = sqrt ( Fx^2 + Fy^2) tan theta = Fy/Fx where theta is angle above x axis A = F / 3805 same angle above x axis = theta
asked by Anonymous 
physics
tarzan swings from a vine whose length is 10m in a vertical circle under the influence of gravity .when vine make an angle of 20 degree with the vertical then find out length of arc and centripetal force experienced at this instant when tarzan has a speed
asked by Anonymous 
Physics
An aeroplane's compass indicates that it is headed due to North, and it airspeed indicator shows that is moving through the air at 24 0 km/h. If there is a 100 km/h wind from west to east. In what direction should the pilot head to travel due north? What
asked by Khushi 
physics
One boy standing on a bridge throws a stone horizontally at a velocity of 12m/s. If the bridge is 10m above the river, how far horizontally will the stone go from him?
asked by Patrick 
Physics
Describe the force board experiment to show how to obtain a resultant of two nonparallel coplaner forces acting at a point
asked by .... 
algebra
what is the greatest prime you must consider to test whether 4178 is a prime?
asked by Kim 
biology
Who discovered that only green parts (leaves) of plants photosynthesized releasing oxygen and not roots? a. van Helmont b. Priestly c. Ingenhousz d. van Niel e. Blackman
asked by Ally 
algebra
A farmer has 160 bushels of apples for sale at a farmers market .he sells an average of 15 1/4 bushels each day .After 7 days ,what is the change in the total number of bushels he has for sale at the farmers market. Please help me work this out I dont
asked by James 
Physics
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 453 N and F2 = 400 N. (Assume up and to the right as positive directions.)(F1 is 8degrees and F2 is 35degreed) (a) What is the resultant of these two
asked by Anonymous 
math
John is fencing a larger rectangular pen and creating 3 smaller pens of equal area (2 lengths and 4 widths). John wants to maximize the area contained by the pens. John plans on using 1200m of fencing. What is the area and dimension of the 3 smaller pens?
asked by Parveen 
Math
Jason is keeping track of the amount of money that he spends on gas each month. Below are the amounts for last month: $24.75 $30.25 $34.60 $38.90 What is the best estimation for the amount that Jason spent on gas last month? A) 20 + 30 + 30 + 40 B) 20 + 30
asked by LostIdentities 
math
i'm not very good at math whats an easy way to learn rise over run and slope, i'm an 8th grader i really need help.
asked by sarah 
Mathematics
A pyramid 8cm high stands on a rectangular base 6cm by 4cm. Calculate volume of the pyramid.
asked by Susan 
Math
Which choice correctly compares the two numbers? A) 4.2 > 5.6 B) 4.8 < 4.6 C) 5.1 < 5.2 D) 5.2 > 5.3
asked by LostIdentities 
Math
Im still having problems with this simple question: d^2y/dx^2 + 2 dy/dx +5y=0 With initial conditions y=1, x=0 and dy/dx=1 I have gone through and checked and ended up with no solution given the initial conditions. The Furthest I have got is ending with
asked by Mathy 
Chemistry
Calculate the volume of CO2 that would be produced from 0.5 mole of Fe2O3 according to the equation.Fe2O3(s)+3CO(g)=2Fe(s)+3CO2(g). (1mole of a gas occupies 22.4dm3 at s.t.p)
asked by Joy 
Career guidance
Maths lit geography life science tourism Can I do nursing with this subject?
asked by Mike 
math
At the end of a party, three fourths cup of dip is left. Jim divides four fifths of the leftover dip equally between 2 friends. How much dip does each friend get?
asked by Anonymous 
Physics
Two cars approach each other; both cars are moving westward, one at 78 km/h, the other at 64km/h. A) what is the velocity of the first car relative to (in the frame of reference of) the second car? B)after the pass, will their relative velocity change?
asked by Ashley 
science
a runner runs 100.0 m in 9.85 seconds. If he has a kinetic energy of 3400.0 J what is the mass?
asked by Anonymous 
Science
Is 3NaHCO3+C6H8O7=C6H5Na3O7+3CO2+3H20 A combustion reaction?(alka seltzer tablet reacts with water).
asked by Ania 
chemistry
A 5.00 L solution has [HC7H5O2] = 0.100 M and [Ca(C7H5O2)2] = 0.200 M . What is the pH of the solution after 10.0 mL OF 5.00 M NaOH is added? Assume the volume of the solution does not change .Ka for HC7H5O2 = 6.3x10^5.
asked by JAY_ndabeh 
Physics
Ann is driving down a street at 55 km/h. Suddenly a child runs into the street. If it takes Ann 0.75 s to react and apply the brakes, how many meters will she have moved before she begins to slow down?
asked by Ashley 
biology
When protons accumulate on one side of the membrane and then flow back across the membrane through ATP synthase it is called a. chemiosmosis b. electron transport chain c. charge separation d. primary photoevent
asked by Ally 
history
what was the biggest war in usa history
asked by Welp_oh_dear 
Physics
What is the force of attraction between two masses of 5kg and 8kg at a distance of 60cm apart
asked by saadatu 
Prealgebra
8+24+√5? I have no idea what the answer is 😬
asked by nobody 
Math
PJ needs $60 for a class trip. He has $32 already saved and can earn $4 an hour mowing lawns. How many hours must PJ work to have the money he needs? Write an Equation and solve
asked by Kylie 
Geometry
8cos30° × tan60°+2 sin²65°+2cos²65°
asked by Sarah 
Math
What type of problems can we solve using the greatest common factor
asked by Evelyn 
math
olivia can complete 6 sprints per minute.write and solve a direct variation eqation to find how many sprints she can expect to complete in 25 minutes. i really need the answer
asked by sarah 
Physics
While John is traveling along an interstate highway, he notices a 160mile marker as he passes through town. Later John passes another mile marker,115. A ) what is the distance between town and john’s current location? B)what is john’s current
asked by Ashley 
English
How is the book Their Eyes Were Watching God by Zora Neal Hurston a bildungsroman? What are some examples from the book that support the answer?
asked by Raven 
Physics
Light from the sun reaches earth in 8.3 min. The velocity of light is 3.00 x 10^8 m/s. How far is earth from the sun.
asked by Ashley 
Math
Ben and Maddie both use triangles to determine the slope of the line.Ben determines the slope of line l to be 2. Maddie says the slope of line is 1/2.Who is correct?
asked by sarah 
Physics
I need the answers Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 453 N and F2 = 400 N. (Assume up and to the right as positive directions.)(F1 is 8degrees and F2 is 35degreed) (a) What is the
asked by Anonymous 
Science
A rectangular container has a 10 cm square base and contains water to a depth of 12 cm. when a stone of a mass of 600 g is gently lowered into the water , the level rises to 14 cm.calculate the volume of water displaced
asked by Gayathri 
physics
l need answers with the aid of scale drawing
asked by success 
Physics
You dive a car 2.0 h at 40km/h , then 2.0 h at 60 km/h A) what is you average velocity B) do you get the same answer if you drive 100 km at each of the two speeds above
asked by Ashley 
Physics
What average force is necessary to accelerate a projectile at rest to a speed of 125m/s which has a mass of 9.20g the distance of .800m along the barrel of a rifle?
asked by Alex 
prealgebra
wyatt invests $6000 in two accounts, the first pays 10 percent simple interest, the second pays 11 percent simple interest. At the end of the year he has earned $640 in interest. How much is invested at each rate?
asked by miranda