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person walks 50 m east, turns south and walks 32 m, then turns to the southeast (45° south of east) and walks 44 m. a)Determine
1. 2 answers
2. 678 views
In the Daytona 500 auto race, a Ford Thunderbird and a Mercedes Benz are moving side by side down a straightaway at 71.0 m/s.
1. 3 answers
2. 2,464 views
Mother rabbit hops 8steps at a time while baby rabbit hops 4steps at a time. which steps will they both hop on? Draw on the
1. 1 answer
2. 945 views
A boy on a swing is pulled to a position 2.34 m off the ground and released. At the fastest and lowest point of the swing the
1. 1 answer
2. 1,250 views
Which equation is the polar equivalent to the equation y=−(√3/3)x?θ=π/6 θ=π/3 θ=2π/3 θ=5π/6
1. 1 answer
2. 1,365 views
A small company set up a new investment project on 1 January 2017. The initial investment on that date was £2.5 million with a
1. 0 answers
2. 433 views
What is the point of no return in the Civil War?I was deciding between the Compromise of 1850, Bleeding Kansas, or Brown and
1. 1 answer
2. 671 views
Which statement BEST describes a principle that is shared in the preambles of the constitutions of the United States and
1. 5 answers
2. 3,033 views
Answer to: What Happened when two fruit companies merge?They made a perfect pear
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2. 156 views
1) Let z be a normal random variable with mean 0 and standard deviation 1. The 4th decile of z is ___.a) 0.67 b) –1.25 c)
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2. 1,260 views
Let z be a normal random variable with mean 0 and standard deviation 1. The 4th decile of z is ___.a) 0.67 b) –1.25 c) -0.25
1. 0 answers
2. 785 views
s the following relation a function?two ovals, one labeled x and the other labeled y. The negative 2 in the x oval is pointing
1. 0 answers
2. 474 views
A wire is stretched from the ground to the top of an antenna tower. The wire is 15 feet long. The height of the tower is 3 feet
1. 2 answers
2. 3,575 views
Ryan showed Brandon the following four-digit number: 2002. He then told Brandon “I am thinking of a six-digit where I have
1. 1 answer
2. 536 views
A copier at the high school has a counter which tallies how many copies have been made on the machine. The counter, however, has
1. 2 answers
2. 608 views
Two friends are playing a variation of MasterMind where one friend tries to guess the three digit number that the other friend
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2. 770 views
While playing one day, Megan decided to build cubes out of a box of individual sugar cubes. Megan emptied the box onto the floor
1. 1 answer
2. 641 views
A line and a plane are perpendicular if they intersect and if every line lying in the plane and passing through the point of
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2. 920 views
I am thinking of a four digit number. The sum of the four digits is 6, but none of the digits is zero. If you have only one
1. 2 answers
2. 490 views
Guests at a winter-themed party were served snowball cookies, snowman cookies, and snowflake cookies. All of the guests who ate
1. 5 answers
2. 805 views
Hi,I'm working on an essay and just wanted to know if anyone had an example you can find and might be willing to share with me.
1. 2 answers
2. 613 views
Guests at a winter-themed party were served snowball cookies, snowman cookies, and snowflake cookies. All of the guests who ate
1. 1 answer
2. 794 views
E.I. du Pont de Nemours & Co. has an issue of $4.50 preferred stock outstanding. It is currently selling for $108. What rate of
1. 0 answers
2. 452 views
A car is travelling around a banked curve at a constant speed of 84.0 km/h. If the radius of curvature of the path is 67.0 m,
1. 1 answer
2. 931 views
An airplane is travelling north at 404.0 km/h. Ten minutes later it is travelling west at 433.0 km/h. What is the magnitude of
1. 1 answer
2. 381 views
john poured 2 1 / 2 liters of water into a tank. then he poured out 3 2 / 5 liters of water from the tank , leaving 4 1 over 5
1. 1 answer
2. 1,366 views
A calorimeter, with calorimeter constant 7.31 J K–1, was used to measure the heat of reaction for mixing 100.0 mL of 0.100 M
1. 2 answers
2. 1,015 views
At 20.0°C the vapour pressure of pure methanol is 11.8 kPa and that of pure ethanol is 5.93 kPa. A gaseous mixture of methanol
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2. 824 views
Air consists of 21 % oxygen, 78 % nitrogen and 1 % argon by volume. Calculate:* (a) the partial pressures in Pa, if total
1. 1 answer
2. 1,143 views
High quality coal (anthracite) is almost pure carbon. The combustion of carbon to carbon dioxidereleases 393 kJ per mol of
1. 1 answer
2. 791 views
Hi,I'm an absolute beginner in this field and this may be a dumb idea.But as mind came up with this,I simply doesn't feel like
1. 0 answers
2. 430 views
A sum of rs400 amounts to rs480 in 4years. What will it amount to if the rate of interest is increased by 2% p.a
1. 2 answers
2. 419 views
In an 8.00 km race, one runner runs at a steady 12.0 km/h and another runs at 14.6 km/h
1. 1 answer
2. 998 views
Excellent human jumpers can leap straight up to a height of 100 cm off the ground.To reach this height, with what speed would a
1. 2 answers
2. 3,910 views
In a 5.00 km race, one runner runs at a steady 11.3 km/h and another runs at 14.9 km/h .How long does the faster runner have to
1. 1 answer
2. 958 views
A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 58.8 m/s2 . The
1. 1 answer
2. 3,294 views
A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 58.8 m/s2 . The
1. 2 answers
2. 1,389 views
When striking, the pike, a predatory fish, can accelerate from rest to a speed of 3.6 m/s in 0.11 s .Distance?
1. 1 answer
2. 3,726 views
15.The Rydberg constant for the Be3+ ion is 109731 cm–1. Calculate the ionizationenergy of a ground-state Be3+ ion. 22.How
1. 2 answers
2. 1,994 views
on a map 1/2 inch represents 50 miles. How long would a line need to be to represent 750 miles. so I thought I should divide 750
1. 1 answer
2. 859 views
During halftime of a footballgame, a sling shot launches T-shirts at the crowd. A T-shirt is launched from a height of
1. 3 answers
2. 7,593 views
If u scored 85,89,89,91 on a test but u need an average mean of 90 what will u have to score on ur last test to get 90?
1. 1 answer
2. 402 views
A horizontal forces of magnitude 500N pulls two blocks of masses m1=10 kg and m2=20 kg which are connected by the light
1. 1 answer
2. 1,047 views
As an ABC (Australian Born Chinese), Who is an avid watcher of korean entertainment ( dramas, variety, movies etc), listener of
1. 2 answers
2. 591 views
find the equation of the line that is tangent to the curve 𝙛(𝑥)= 5 +3x² -x⁵ at the point (1,7)
1. 1 answer
2. 420 views
Static charge can interfere with the production of plastic products by attracting dust and dirt. to reduce it, manufacturers
1. 1 answer
2. 1,650 views
Write the oxidation and reduction half-reactions for a silver-chromium voltaic cell. Identify the anode, cathode, and the
1. 1 answer
2. 1,947 views
Mean of 10 observations is 100. One of the observations is dropped from the data. The mean of the remaining observations is 9.
1. 2 answers
2. 418 views
Give an example of an exponential function that has a range (3,infinity)
1. 1 answer
2. 875 views
a box of mass 7 kg is pulled up a frictionless 30 degree incline by a force of 381 N which acts parallel to the incline surface.
1. 1 answer
2. 1,265 views
a mass, m = 2.1 kg, is ejected horizontally from a compressed coil with a force constant, k = 5.2 N/m and compression, x = 25
1. 1 answer
2. 980 views
old faithful geyser in yellowstone park shoots water hourly to a height of 44.8m. with what velocity does the water move when it
1. 1 answer
2. 1,001 views
a block of mass 2kg moves on a frictionless inline (none of the forces on the block are shown). its initial velocity is v
1. 2 answers
2. 1,051 views
a skier, mass 61 kg is at the top of a hill and starts down with an initial speed of 5m/s. he does no work on the way down,
1. 2 answers
2. 821 views
determine the point of zero gravitation force, as measured from the centre of earth (mass 5.97 x 10^24 kg) to the sun ( mass
1. 2 answers
2. 501 views
a 1.2 kg magnet is capable of holding up a 0.5 kg mass. the magnet is placed on a vertical refrigerator door and given an
1. 1 answer
2. 499 views
a 35 kg child slides down a 26 degree incline. the coefficient of kinetic friction is 0.33. what is her speed after sliding for
1. 1 answer
2. 748 views
A 2kg mass, m1 and a 10 kg mass, m2 are in contact on a horizontal frictionless surface. a constant horizontal force 13.7 N in
1. 2 answers
2. 924 views
a 61.6 kg person on a diet stand on a bathroom scale in an elevator. to their great pleasure the scale reads 46.8 kg. what is
1. 1 answer
2. 859 views
A 2 635-kg sailboat experiences an eastward force of 2 710 N by the ocean tide and a wind force against its sails with magnitude
1. 1 answer
2. 653 views
a stone is thrown at an angle of 30 degrees above the horizontal from the top edge of a cliff with an initial speed of 12m/s. a
1. 1 answer
2. 3,557 views
an airplane has a velocity of 499 km/h relative to the moving air. at the same time, a wind blows northward with a speed of 87
1. 1 answer
2. 797 views
A tennis player strikes a ball when it is 2.20m above the ground, with a velocity 18.7 m/s at 20 degrees above the horizontal.
1. 2 answers
2. 2,269 views
the distance of a planet from its sun is 19000000 miles. if there are 29400000 seconds in one orbit, find the speed of the
1. 2 answers
2. 505 views
Which of the following is true for the nucleus?A) It has no definite structure B) It is surrounded by membrane C) It is the
1. 0 answers
2. 456 views
Tests on a Chevy Cobalt incdicate a population mean of 32 mpg and a population standard deviation of 3.5 mpg. You take an SRS
1. 3 answers
2. 563 views
3. Choose the hybridization schemes for the following species.(a) AsBr6− sp sp2 sp3 sp3d sp3d2 (b) CSe2 sp sp2 sp3 sp3d sp3d2
1. 1 answer
2. 773 views
2. Which of the following molecules is/are trigonal pyramidal?N2O NH3 C2H2 SiF4 HN3 HCN SO3 H2S CF4 PF3 H2O BF3 COS O3 SO2 CS2
1. 1 answer
2. 783 views
1. [ PF4 ]+(a) What is the electron-group geometry, according to VSEPR theory? (b) What is the molecular geometry? (c) Is this
1. 1 answer
2. 2,337 views
The National Association of Realtors estimates that 23% of all homes purchased in 2004 were considered investment properties. If
1. 1 answer
2. 1,440 views
Someone flips a coin 50 times and gets 50 heads in a row. You suspect it is a 2 headed coin. Write the null and alternative
1. 0 answers
2. 414 views
A manufacturer claims that the mean lifetime of its lithium batteries is 1400 hours. A homeowner selects 25 of these batteries
1. 2 answers
2. 3,260 views
Construct a 90% confidence interval for the population mean. Assume the population has a normal distribution. A same of 15
1. 2 answers
2. 3,226 views
A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than
1. 0 answers
2. 1,637 views
A 189.4 kg uniform, horizontal beam is hinged at one end and at the other is supported by a cable that is at 37 degrees to the
1. 1 answer
2. 1,265 views
For a Sc atom in ground electronic state:1. how many electrons are there in 4s orbitals? 2. how many electrons are there in 3d
1. 1 answer
2. 654 views
Consider the 5p orbital of a hydrogen atom.1. how many different 5p orbitals are there? 2. how many radial nodes are there? 3.
1. 1 answer
2. 751 views
For each of the following experimental conditions determine whether molar mass would be:1) too high, B) too low or C)
1. 0 answers
2. 566 views
For each of the following experimental conditions determine whether molar mass would be:1) too high, B) too low or C)
1. 0 answers
2. 546 views
For each of the following experimental conditions determine whether molar mass would be:1) too high, B) too low or C)
1. 0 answers
2. 596 views
For each of the following experimental conditions determine whether molar mass would be:1) too high, B) too low or C)
1. 1 answer
2. 660 views
For each of the following experimental conditions determine whether molar mass would be:1) too high, B) too low or C)
1. 2 answers
2. 687 views
What was Harriet Tubman rebelling against?
1. 2 answers
2. 441 views
Consider a road over a hill where the top is shaped like a circular bump. This circular arc has its center in the hill below. As
1. 1 answer
2. 611 views
Which of the following options best demonstrates sentence fluency?a. The city looked beautiful in that it was lit by the sun
1. 3 answers
2. 769 views
Calculate the difference between H and U when 1 mole of water is boiled at 373 K and 1 atm. The volume of 1 mole of
1. 2 answers
2. 819 views
In a power plant the high pressure turbine trips due to an unauthorised valve shutdown. What area) what is the angular
1. 0 answers
2. 576 views
A dock worker is loading a 25 kg solid cylindrical barrel to a ship by rolling it up a 9 meter long and 1.5 meter high ramp. At
1. 1 answer
2. 550 views
The initial concentration of NO2 in a closed container is 0.750M. At equilibrium the concentration of O2 is 0.125M. What are the
1. 1 answer
2. 834 views
The equilibrium concentration of NOCl = {0.0610}, NO = [0.0151, and Cl= [0.0142, what is the value of the equilibrium constant?D
1. 1 answer
2. 533 views
The density of acetonitrile, CH3CN, is 0.786 g/mL, and the density of methanol, CH3OH,is 0.791 g/mL. A solution is made by
1. 1 answer
2. 1,734 views
The Henry's law constant for CO2 is 3.1 x 10-2 mol/L-atm at 25°C. What pressure wouldbe necessary in order to have a .25 M
1. 3 answers
2. 1,211 views
The Henry’s Law constant for N2 in water at 30 oC is 6.0 x 10-4 M/atm, calculate thesolubility of nitrogen gas in water at a
1. 1 answer
2. 915 views
One particle has a mass of 2.86 x 10-3 kg and a charge of +7.32 μC. A second particle has a mass of 6.41 x 10-3 kg and the same
1. 0 answers
2. 826 views
A particle of charge +18.1C and mass 7.06 × 10-5 kg is released from rest in a region where there is a constant electric field
1. 1 answer
2. 539 views
Two geological field teams are working in a remote area. A global positioning system (GPS) tracker at their base camp shows the
1. 1 answer
2. 618 views
3.4e^2-2n - 9 = -4
1. 3 answers
2. 462 views
Due to a tune-up, the efficiency of an automobile engine increases by 4.00%. For an input heat of 1530 J, how much more work
1. 0 answers
2. 863 views
The internal energy of a system changes because the system gains 180 J of heat and performs 338 J of work. In returning to its
1. 0 answers
2. 713 views
A piece of glass has a temperature of 87.0 °C. Liquid that has a temperature of 32.0 °C is poured over the glass, completely
1. 0 answers
2. 767 views

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