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Questions (23)
Round 57309 to the nearest ten
5 answers
1,790 views
In your activity, supposed it took you 25.0 seconds in climbing the stairs of the science
building from the ground floor to the
0 answers
329 views
If a 35 kg boy runs up a flight of stairs having a rise of 8.0 meters in 4.3 seconds. What average
power must be supplied? Give
0 answers
420 views
In the poem Warren Pryor by Alden Nowlan, it says "his axe-hewn hands upon the paper bills aching with empty strength and
3 answers
682 views
If the one's digit of a number greater than 1 is 10,what factor or factors must that number have
3 answers
489 views
state one reason why the concentration of glucose in the blood decreases.
1 answer
953 views
state one reason why the concentration of glucose in the blood increases.
2 answers
1,248 views
A block of mass m = 1.70kg is released from rest h = 0.485m from the surface of a table, at the top of a θ = 27.4° incline as
1 answer
850 views
The reaction for the complete combustion of acetylene is shown below.
C2H2(g) + 5/2 O2(g) -----------> 2 CO2(g) + H2O(l) ΔH =
1 answer
1,179 views
If 200 ml of .300 molarity of silver nitrate are mixed with 350 ml of .500 molarity calcium chloride ions how many grams of
1 answer
656 views
A 1340 kg car going 21 m/s has to stop suddenly. The driver locks the brakes, and the car skids to a halt in a distance of 67 m
1 answer
734 views
A projectile is fired horizontally from a 39 m cliff at 30m/s . Find the speed and velocity of the projectile when it strikes
0 answers
491 views
Stretching DNA.
With its double-helix structure, DNA is coiled like a spring. A biophysicist grabs the ends of a DNA strand with
1 answer
1,694 views
A glider (mass = 0.12kg ) on a frictionless horizontal air track is connected by a light string over a pulley to a metal block
0 answers
730 views
A 64kg driver gets into an empty taptap to start the day's work. The springs compress 1.9×10−2 m . What is the effective
2 answers
1,470 views
A horizontal spring with K = 110 N/m has one end attached to the wall. A 250g block is pushed onto the free end, compressing the
0 answers
569 views
A solid metal is often known as having 'an array of positive ions in a sea of electrons'.
Write down the electronic structure of
2 answers
1,619 views
What is weighted average in chemistry?
1 answer
468 views
What is the difference between a metal and an alloy?
2 answers
450 views
What will my peercentage saving be if I buy something in a sale that offers 3 for the price of 2?
1 answer
395 views
I know that this question had already been answered. But still I could not understand.
Calculate this question and write the
1 answer
507 views
Why is it vital that there is friction thatb opposes motion when two surfaces try to slide across one another?
1 answer
603 views
calculate this question and write each answer in standard form.
(4.5*10^12)dvided by(9*10^10)
1 answer
410 views
Answers (13)
but there are 32 questions on the test not 4 :/
The questions will most likely be mixed up keep that in mind while your reading this Q1)Which trait is inherited? A1)D. freckles Q2)What is an allele? A2)D. a variant form of a gene Q3)A student claims that dominant traits are always the most common
Jayce is correct, I just did this on sapling, the correct answer was -220kj/mol
air,air,(aq)
Thank you.
1. A hunter on the ground fires a bullet in the north-east direction which strikes a deer 0.25 miles from the hunter. The bullet travels with a speed of 1800 mi/h. At that instant when the bullet is fired, an airplane is directly over the hunter at an
100 joule
Is 2 time's 1 3
-175.8 j/k.mol
-3 and 1
Revolved about the x-axis~ must use: integral 2*Pi*y ds (Eq 1) For ds use: ds = sqrt(1+[F'(x)]^2) dx (Eq 2) sinh(x) dx = cosh(x) = F'(x) sub cosh(x) into Eq 2 and you get: ds = sqrt(1+[cosh(x)]^2) dx now sub ds into Eq 1 integral 2*Pi*y*sqrt(1+[cosh(x)]^2)
Heat Movement Thermal energy is always moving. No matter what substance is heated, there is always another place for the heat to move, unless all available substances are the same temperature and equilibrium is reached. This is particularly true on earth,
Two blocks are connected by a very light string passing over a massless and frictionless pulley (the figure ). Traveling at constant speed, the 20.0- block moves 80.0 to the right and the 12.0- block moves 80.0 downward
