Questions and answers by

jake

Questions (737)

f(x) = -x squared + 1for x= -3
1. 1 answer
2. 327 views
A wave with frequency 11.3Hz and amplitude 48.1 mm moves in the positive x direction with a speed of 5.6 m/s. What is the waves
1. 1 answer
2. 516 views
A wave with frequency 11.3Hz and amplitude 48.1 mm moves in the positive x direction with a speed of 5.6 m/s. What is the waves
1. 1 answer
2. 521 views
what is the SI unit for torque? :)
1. 1 answer
2. 442 views
Which two orbitals from CV+ and –OH will overlap creating the C-O bond in CVOH?Which of the following accurately shows the
1. 4 answers
2. 3,703 views
calculate the discriminant of3x^2 - 4x + 2
1. 1 answer
2. 674 views
tony is making flower arrangements. he is using 3 different kinds of flowers-roses, daisies, and tulips. each arrangement will
1. 2 answers
2. 1,166 views
A car drives straight off the edge of a cliff that is 58 m high. The police at the scene of the accident note that the point of
1. 2 answers
2. 1,155 views
A coin dealer, offered a rare silver coin, suspected that it might be a counterfeit nickel copy. The dealer heated the coin,
1. 0 answers
2. 878 views
Use standard enthalpies of formation to determine ƒ¢Horxn for:2NH3(g) + 3O2(g) + 2CH4(g) �¨ 2HCN(g) + 6H2O(g) in kilojoules.
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2. 982 views
An object is thrown vertically upward with a speed of 22.4 m/s. How high does it rise?
1. 1 answer
2. 560 views
An arrow is launched vertically upward from a crossbow at 98.2 m/s. Ignoring air friction, what is its instantaneous speed at
1. 1 answer
2. 1,061 views
A rifle with a weight of 35 N fires a 4.0 g bullet with a speed of 250 m/s.(a) Find the recoil speed of the rifle. ___m/s (b) If
1. 8 answers
2. 1,504 views
A 715 N man stands in the middle of a frozen pond of radius 10.0 m. He is unable to get to the other side because of a lack of
1. 1 answer
2. 1,119 views
How do I find the radius of a sulfide ion?
1. 0 answers
2. 373 views
I used coulomb's law to find the force of attraction between the ionic atoms in BeS and BeO.For BeS, F = -6.85x10^29 J/m For
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2. 632 views
Is it true that the greater difference in electronegativity in an ionic compound, the greater attraction between the elements in
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2. 414 views
I am comparing the ions BeS and BeO.BeS... d=229 pm Force of attraction = -6.856x10^29 J/m BeO... d=199 pm Force of attraction =
1. 1 answer
2. 644 views
How do I find the radium of the sulfide ion in BeS?The radius of Be is 59 pm. I am also given the force between them.
1. 0 answers
2. 380 views
An athlete executing a long jump leaves the ground at a 20° angle and travels 7.80 m.(a) What was the takeoff speed? 1._____
1. 2 answers
2. 694 views
A delivery truck travels 20 blocks south, 24 blocks west and 25 blocks north. What is its final displacement from the origin?
1. 2 answers
2. 1,038 views
i think im doing the same homework as anika i was just wondering where Dubai and Switzerland came on the top 20 cities in the
1. 2 answers
2. 402 views
find D from the formula C= pie D WHEN pie= 3.142 and c= 27
1. 1 answer
2. 452 views
A car starts from rest with a velocity given by v=kt^3 where k is a constant. The expression for the distance traveld by the car
1. 1 answer
2. 490 views
A first object is thrown vertically upward with some initial speed and some initial height above the ground. Simultaneously, a
1. 1 answer
2. 865 views
a mixture of gases at a total pressure of 95kPa contains carbon dioxide, oxygen, and nitrogen. The partial pressure of the
1. 1 answer
2. 1,123 views
In a 0.10 M solution of glutaric acid, HO2C(CH2)3CO2H (K1 = 4.6 ´ 10-5, K2 = 3.9 ´ 10-6), the species present in the next to
1. 1 answer
2. 946 views
A ball of mass 0.150 kg is dropped from rest to a height of 0.125 m. It rebounds from the floor to reach a height of 0.960m.
1. 2 answers
2. 2,759 views
Should Nations pursue goals of international cooperation to ensure security
1. 1 answer
2. 371 views
Ammonium carbonate (solid) decomposes when heated to produce three gaseous products - ammonia, water, and carbon dioxide.1.
1. 1 answer
2. 1,356 views
Ammonium carbonate (solid) decomposes when heated to produce three gaseous products - ammonia, water, and carbon dioxide.1.
1. 0 answers
2. 1,267 views
what was the name of the ship that Sir Neville Howse came home on after WW1 also the date of return to Australia
1. 0 answers
2. 425 views
An airplane flies due north from a starting point at 234.6 mph for 40 minutes. Then turns flying 20 minutes at 252 mph in the
1. 1 answer
2. 1,344 views
write each number in exponential notation 100= 10,000=
1. 1 answer
2. 448 views
5-3(2b-3)= -4
1. 1 answer
2. 326 views
An object is thrown vertically into the air with an applied force of 145N. what is the initial acceleration of the object?
1. 0 answers
2. 662 views
a 125Newton box is pulled east along a horizontal surface with a force of 60Newton acting at an angle of 42degrees. if the force
1. 1 answer
2. 554 views
Physics force of friction questiona 63kg water skier is pulled across a lake by a rope that exerts a force of 3.2x10^2 and makes
1. 1 answer
2. 1,116 views
Physics force of friction questiona shuffle board disk is accelerated to a speed of 5.8m/s and released. if the coefficient of
1. 4 answers
2. 1,850 views
So you answered my question to tell me not to post it twice that was an accident...heres my question i need some help please,
1. 1 answer
2. 597 views
Francis Cabot Lowell led a group of businessmen who?A. built a centralized textile factory in massachusetts B. ended that market
1. 1 answer
2. 795 views
Need help with short projectile motion questiona ball is thrown up off the roof of a school at an angle of 55 degrees from the
1. 3 answers
2. 598 views
A parabola with a vertex at (–1, –2) passes through the point (1,6). Using this information,what are the x-intercepts of
1. 3 answers
2. 535 views
how would i do this quadratic word problemA local daycare centre charges $65 per day to care for a child. The daycare currently
1. 2 answers
2. 687 views
how would i do this quadratic word problemA local daycare centre charges $65 per day to care for a child. The daycare currently
1. 2 answers
2. 576 views
Short projectile motion questiona peron kicks a football from 39.6 meters from the goal posts. the kcik leaves the ground with a
1. 2 answers
2. 969 views
projectile motion question need help working through itan airplane travelling 1001meters above the ocean at 125km/h is going to
1. 2 answers
2. 592 views
Short projectile motion questionA German rocket from the second world war had a range of 3000meters reaching a maximum height of
1. 2 answers
2. 639 views
peter bought a bag of candy. He gave away ten percent of the candy too his wife and the gave three pieces to meg. he gave one
1. 1 answer
2. 835 views
4 people need to cross a brige but it is dark outside and they only have one flashlight and only 2 people can cross at one time.
1. 2 answers
2. 629 views
How do I go about in solving this?A spy satellite is in circular orbit around Earth. It makes one revolution in 6.01 hours. (a)
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2. 645 views
(how do I go about solving this, i know i need to conver 88days to secs and that would be 126,720. but I don't where to go from
1. 1 answer
2. 551 views
can someone please take me step by step on this problema swimers speed in still water is 1.35m/s if the current speed is 0.60m/s
1. 2 answers
2. 506 views
can someone take me through this vector combination question pleasean airplane is observed to be flying at a speed of 600km/h.
1. 3 answers
2. 662 views
During a ski race, Kate uniformly accelerated at 3.15m/s^2 for 100meters. She then maintained this velocity for another 100m.
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2. 526 views
During a ski race, Kate uniformly accelerated at 3.15m/s^2 for 100meters. She then maintained this velocity for another 100m.
1. 1 answer
2. 492 views
need help decomposing theses vectors to x and y52.9 meters at 19 degrees rectangular cor-ordinate system
1. 1 answer
2. 348 views
need help combining these vectors (if you can please show me a step by step guide of combining these two. Thank you56m at 296
1. 3 answers
2. 450 views
need help combining these vectors56m at 296 degrees, then 83m 152 degrees
1. 1 answer
2. 321 views
finding the bearing of a vector?when i am giving a vector like 56 m at 296 degrees do i have to find a bearing of 296 degrees or
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2. 482 views
need a step by step process of combining this question into one vector:56 NEWTONS at 296 degrees, then 83 newtons at 152 degrees
1. 0 answers
2. 399 views
What is the difference in shape on a graph 70 degrees south of east and 70 degrees east of south?
1. 1 answer
2. 433 views
need help with doing this combining vector questionA jogger runs with a velocity of 6km/h 25 degrees north west for 35 minutes
1. 2 answers
2. 715 views
what is the difference in shape on a graph between 70 degrees north of east and 70 degrees east of south
1. 1 answer
2. 452 views
need help with physcis vector problemUsing combining vectors to find displacement problem(BEST answer)? tourist on a jet ski
1. 1 answer
2. 667 views
need help with this physics questionsa jogger runs with a velocity of 6km/h 25 degrees north west for 35 minutes and then
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2. 571 views
cross country is to a skier as a what is to a runner
1. 1 answer
2. 364 views
swimming is to butterfly as what is to dressage
1. 2 answers
2. 389 views
a mountain is to a ski jumper as a what is to a diver
1. 1 answer
2. 462 views
A skull is to rowing as a what is to yachting
1. 2 answers
2. 612 views
acceleration due to gravity questionswhen an object is dropped from a height of 10m above the surface of the planet z, it takes
1. 3 answers
2. 657 views
acceleration due to gravity questionsDetermine the time of fall when an object is dropped if the average velocity of the falling
1. 2 answers
2. 515 views
acceleration due to gravity questionsA rock is dropped from a height of 7meters a) what is the average velocity of the rock
1. 1 answer
2. 1,503 views
Physics 20 acceleration due to gravity questionsAn object is thrown downwards, hitting the ground with a velocity of 10m/s . it
1. 1 answer
2. 562 views
How would i find the total time spent decelerating on a velocity time graph?would it be the parts on the graph with negative
1. 1 answer
2. 346 views
how would i find the total time spent decelerating on a velocity time graph
1. 2 answers
2. 322 views
How would i find the average velocity for certain pointsfinding the average velocity between 0.2 hours and 0.4 hours object is
1. 3 answers
2. 432 views
how to find the average velocity and speed for an entire postion time graph
1. 1 answer
2. 500 views
How would i find the average velocity for certain points.?finding the average velocity between 0.2 hours and 0.3 hours object is
1. 1 answer
2. 422 views
A gas occupies 10 liters at standard conditions. What volume will it occupy at 20 degrees celsius and 700 torr?
1. 1 answer
2. 600 views
use the terms "displacement" and velocity to descibe how uniformly accelearted motion differs from unifrom motion
1. 1 answer
2. 518 views
Describe the acceleration time graph of a car traveling forward and applying its brakes.
1. 4 answers
2. 693 views
How can i find the average Velocity and speed for a position time graph*
1. 1 answer
2. 491 views
How can i find the averagee veloity and speed for a postion time graph
1. 7 answers
2. 496 views
i am supposed to solve this word problem using system of quatino methodsThe annual cost of owning and opearting a car, C
1. 0 answers
2. 368 views
Help with physics graph sketch?sketch a postion time graph for a student stopping at the school, which 5km east of home how
1. 1 answer
2. 763 views
Need help with this short physics questionthere is a race betwen person A and person B. They both start at the same time, but B
1. 2 answers
2. 1,161 views
Two children on racing bikes start from the same refrence point. child A travels 5.0 meters per second right and child B travels
1. 1 answer
2. 904 views
sketch a postion time graph for a student walking east with a constant velocityhow would that look
1. 1 answer
2. 456 views
i am supposed to sketch a postion time graph for a bear starting at 1.2meters from a refrence point,walking slowly away at a
1. 0 answers
2. 494 views
For an object travelling at a constant velocity,what quantity of motion remains the same over equal time interval?
1. 2 answers
2. 909 views
need help rearanging this formulaT= 2pie sqrt(m/k solve for k is this right k= T^2/m 4pie^2
1. 1 answer
2. 874 views
need help reearing formulaT= 2pie sqrt(m/k solve for m is this right k= T^2/m 4pie^2
1. 1 answer
2. 349 views
Need help converting 9.4 x 10^2 m/s^2 to cm/minute^2this is what i got so far 940 x 10^2 x 3600 =3.4 x10^8 cm/min^2 is it right
1. 1 answer
2. 388 views
Can someone help me convert this0.908 aL/Tmin to nL/hs
1. 4 answers
2. 525 views
can someone show me a step by step guide converting this please2.483 X 10^-7 pm^4kg/s^2 to dam^3mg/day^2
1. 0 answers
2. 336 views
i need help sovling for these variables(i know that i am supposed to solve usign opposite operartion but i keep getign most of
1. 3 answers
2. 633 views
i need help sovling for these variables(i know that i am supposed to solve usign opposite operartion but i keep getign most of
1. 1 answer
2. 505 views
i need help sovling for these variables(i know that i am supposed to solve usign opposite operartion but i keep getign most of
1. 1 answer
2. 509 views
i need this paragraph editedSecondly, the previous action in the play shows conflict of interest between the younger daughter
1. 1 answer
2. 811 views