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Every once in a while a bird will get hit by a baseball during a baseball game. The longest home runs in baseball land about 500
1. 2 answers
2. 969 views
ABC is a right triangle with AB = 2, BC = 3\sqrt{5}, AC = 7 and \angle ABC = 90^\circ. If \cos \angle BAC = \frac{a}{b}, where a
1. 0 answers
2. 463 views
Determine the number of subsets of A=\{1, 2, \ldots, 10\} whose sum of elements are greater than or equal to 28 .
1. 1 answer
2. 717 views
ABC is an acute triangle with \angle BCA = 35 ^\circ. Denote the circumcenter of ABC as O and the orthocenter of ABC as H. If
1. 0 answers
2. 702 views
ABC is an isosceles triangle where AB = AC and BC = 60. D is a point on BC such that the perpendicular distance from D to AB and
1. 1 answer
2. 465 views
A cargo plane is moving with a horizontal velocity ofvx = +225 m/s at a height of y = 920 m above level ground as shown in the
1. 2 answers
2. 5,245 views
Consider a pair of parallel plates with a potential difference of 12 V and are separated by 12 cm.What is the potential energy
1. 1 answer
2. 711 views
If I have 15 flavors of ice cream and 81 different toppings, how many different combinations could I create (assuming only 1
1. 3 answers
2. 633 views
The specfic heat of iron is 0.11cal/g C. The heat of fusion of iron, the heat required to convert iron from a solid to liquid at
1. 2 answers
2. 3,062 views
How many moles of gas are in a 30 liter scuba canister if the tempature of the canister is 300 k and pressure is 200
1. 1 answer
2. 857 views
How many moles of gas are in a 30 liter scuba canister if the tempature of the canister is 300 k and pressure is 200
1. 3 answers
2. 1,187 views
A rock band has 5 members, and 2/5 of the members play string instruments. Also, 0.4of the members sing. Does the band have the
1. 11 answers
2. 2,096 views
What's 6/20 in simplest form? ( I know what simplest form is)
1. 5 answers
2. 473 views
A pitcher throws a baseball with a horizontal velocity of 132 ft/s (90 mph) toward home plate that is approximately 60 ft. away.
1. 1 answer
2. 926 views
A long jumper leaves the ground with an initial velocity of 12 m/s at an angle of 28-degrees above the horizontal. Determine the
1. 2 answers
2. 4,506 views
Train A starts at 4 miles South of a bridge and heads North at a constant speed of 30 miles per hour. Train B starts 6 miles
1. 2 answers
2. 1,536 views
A train is moving towards a destroyed bridge. The velocity of the train remains constant at 20 m/s. A person inside the train
1. 1 answer
2. 876 views
At a certain instant, a ball is thrown downward with a velocity of 8.0 m/s from a height of 40 m. At the same instant, another
1. 0 answers
2. 961 views
A plane is flying at 25 degrees north of west at 190km/ h. Suddenly there is a wind from 15degrees north of east at 45 km/ hr.
1. 1 answer
2. 1,332 views
Plane flying southwest at 155mi/hr. their is a wind from the west at 45.0mi/hr. what's the planes new velocity
1. 0 answers
2. 412 views
Consider the line 9x-6y=-3 .What is the slope of a line parallel to this line? What is the slope of a line perpendicular to this
1. 3 answers
2. 3,319 views
There is exactly one triangle the length of whose sides are integers in arithmetic progression and whose area is 156 square
1. 0 answers
2. 428 views
Do you add Nacl or HCL if your target buffer pH is 8, and the buffer is HEPES
1. 2 answers
2. 389 views
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 433 N and F2 = 354 N.
1. 0 answers
2. 517 views
Forces of 11.3N north, 19.1N east, and 14.5N south are simultaneously applied to a 4.12kg mass as it rests on an air table. What
1. 0 answers
2. 606 views
A rowboat crosses a river with a velocity of 3.30 mi/h at an angle 62.5° north of west relative to the water. The river is
1. 1 answer
2. 4,233 views
compare the collision of a baseball and bat with the collision of a baseball and a fielder's glove when the baseball is caught.
1. 1 answer
2. 986 views
Question: particle J with zero initial mass and X energy acceleratesfrom a static start to 'C' (light speed) in a time frame of
1. 0 answers
2. 605 views
If the side chain of a glutamic acid residue has a pKa of 4.1, at pH 6.1 the ratio of uncharged to charged side chain would be
1. 0 answers
2. 401 views
If the side chain of a glutamic acid residue has a pKa of 4.1, at pH 6.1 the ratio of uncharged to charged side chain would be
1. 0 answers
2. 868 views
Which of the following amino acids has the most hydrophilic side chain?A. F B. Q C. V D. M E. A
1. 1 answer
2. 446 views
Which of the following amino acids has a side chain that carries a negative charge in its conjugate base form?A. H B. W C. C D.
1. 0 answers
2. 470 views
The largest-caliber antiaircraft gun operated by the German air force during World War II was the 12.8 cm Flak 40. Suppose this
1. 1 answer
2. 3,404 views
Find the speed, v, of a pendulum at the bottom of its swing (B), given that it has mass m and initial height at A is h (the
1. 1 answer
2. 1,047 views
Consider the systemx-2y=k-1 4x+(1-k^2)y=8 For what values of k does the system have a. unique solution? b. infinitely many
1. 2 answers
2. 969 views
A 100 inch piece of string is cut into 3 pieces. One piece forms a circle, one forms a square and 1 forms an equilateral
1. 1 answer
2. 640 views
Write a balanced equation for the reaction between an aqueous solution of calcium nitrate being mixed with an aqueous solution
1. 1 answer
2. 646 views
Arena Distributors is a new company and currently pays no dividends. The company has just reported earnings of $1.5 per share
1. 2 answers
2. 1,075 views
Seven years ago a semi-annual coupon bond with a 10% coupon rate, $1,000 face value and 15 years to maturity was issued by Corn
1. 0 answers
2. 675 views
A rational number is the form of a/b, where a and b are integers with b != 0. Develop and test a class for processing rational
1. 0 answers
2. 479 views
to strengthen his arm and chest muscles, an 82-kg athlete who is 2.0 m tall is doing push ups. his center of mass is 1.15 m from
1. 0 answers
2. 1,092 views
Which one of the following stresses would be most likely to cause a bone to fracture?A) tensile stress B) compressive stress C)
1. 2 answers
2. 1,731 views
OverviewThe purpose of the assignment is to develop a basic understanding and skills programming of input/output ports and
1. 0 answers
2. 624 views
Alexa and Emma are looking up at their house from the backyard. From alexa's point of view, the top of the house is at an ang;e
1. 1 answer
2. 4,927 views
From a point 120 feet from the base of a plant building the angle of elevation to the roof line of the building is 38 degrees.
1. 0 answers
2. 1,040 views
A falling iPad takes 0.15 s to travel past a window 2.7 m tall. From what height above the top of the window did the mobile
1. 0 answers
2. 398 views
A falling iPad takes 0.15 s to travel past a window 2.7 m tall. From what height above the top of the window did the mobile
1. 2 answers
2. 434 views
An airplane flies 200 km due west from city A to city B and then 270 km in the direction of 31.0° north of west from city B to
1. 1 answer
2. 1,263 views
A river flows due east at 2.00 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant
1. 1 answer
2. 581 views
Say your parents give you a car for your birthday. It is not the new model you wanted, but it's in very good condition. They
1. 1 answer
2. 571 views
Say your parents give you a car for your birthday. It is not the new model you wanted, but it's in very good condition. They
1. 0 answers
2. 378 views
A company purchased a machine on January 1 of the current year for $750,000. Calculate the annual depreciation expense for each
1. 1 answer
2. 1,792 views
When a resistor is connected across the terminals of an ac generator (112 V) that has a fixed frequency, there is a current of
1. 1 answer
2. 700 views
When a resistor is connected across the terminals of an ac generator (112 V) that has a fixed frequency, there is a current of
1. 1 answer
2. 1,927 views
First, I'd like to thank you for your response to my question. However, I had some follow up questions on your response from
1. 1 answer
2. 961 views
In the circuit below, at time t = 0, the switch is closed, causing the capacitors to charge. The voltage across the battery is
1. 3 answers
2. 735 views
In the circuit below, at time t = 0, the switch is closed, causing the capacitors to charge. The voltage across the battery is
1. 4 answers
2. 793 views
The work done by an electric force in moving a charge from point A to point B is 3.75 x 10^-3 J. The electric potential
1. 1 answer
2. 2,286 views
An object carries a charge of -8.0 uC, while another carries a charge of -2.0 uC. How many electrons must be transferred from
1. 2 answers
2. 7,964 views
An object carries a charge of -8.0 ìC, while another carries a charge of -2.0 ìC. How many electrons must be transferred from
1. 2 answers
2. 2,176 views
You are explaining why astronauts feel weightless while orbiting in the space shuttle. Your friends respond that they thought
1. 2 answers
2. 5,036 views
John Jones buys a flat screen TV costing $1200. He pays $200 down and finances the balance at 15% add-on interest, to be repaid
1. 1 answer
2. 386 views
A railroad car moves under a grain elevator at a constant speed of 3.70 m/s. Grain drops into the car at the rate of 580 kg/min.
1. 1 answer
2. 817 views
A scuba diver searches for treasure at a depth of 20.0m below the surface of the sea. at what pressure must the scuba device
1. 1 answer
2. 1,390 views
I am very confused about how to start this problem:A 29.8 mL sample of 0.354 M methylamine, CH3NH2, is titrated with 0.231 M
1. 1 answer
2. 690 views
How do I do this problem, I am very confused on how to even begin:An aqueous solution contains 0.167 M ascorbic acid (H2C6H6O6)
1. 1 answer
2. 532 views
Presented below are selected financial statement items for Rowe Corporation for December 31, 2012.Inventory $55,000 Cash paid to
1. 0 answers
2. 720 views
At 1 atm, how much energy is required to heat 39.0 g of H2O(s) at –22.0 °C to H2O(g) at 163.0 °C?
1. 1 answer
2. 843 views
If the sun rises at 6 AM and is directly overhead at 12 noon, estimate the time (hour and minutes) when a 34-foot tree will have
1. 1 answer
2. 576 views
If sec theta = radical 5, what is the exact value of cos theta
1. 1 answer
2. 344 views
If sec theta = radical 5, what is the exact value of cos theta
1. 1 answer
2. 383 views
Gaseous hydrocarbons, which contain only carbon and hydrogen, are good fuels because they burn in air to generate large amounts
1. 1 answer
2. 597 views
A pilot is flying over a straight highway. He determines the angles of depression to two mileposts, 3 mi apart, to be angle x =
1. 2 answers
2. 1,889 views
Derive the following formulas using Taylor series and then establish the error terms for each.f'(x) approx=
1. 0 answers
2. 485 views
The car has a mass of 1200kgCalculate the kinetic of the car when it travels at a speed of 12 m/s.
1. 3 answers
2. 711 views
In the 17th century, there were more than 800,000 inhabitants of Paris. At the time, it was believed that no one had more than
1. 1 answer
2. 1,340 views
our objects are situated along the y axis as follows: a 1.94 kg object is at +3.27 m, a 2.76 kg object is at +2.18 m, a 2.78 kg
1. 1 answer
2. 597 views
You pick up a board of length 2.60 m and mass 13.00 kg. To do this, you exert a force upward with your left hand a distance
1. 1 answer
2. 915 views
How much energy (heat) is required to convert 248 g of water from 0oC to 154oC? Assume that the water begins as a liquid, that
1. 2 answers
2. 1,484 views
One dimension. In Fig. 13-32, two point particles are fixed on an x axis separated by distance d. Particle A has mass mA and
1. 0 answers
2. 861 views
One dimension. In Fig. 13-32, two point particles are fixed on an x axis separated by distance d. Particle A has mass mA and
1. 1 answer
2. 909 views
You have a 2.4 m high platform that is level on top. A spring launcher is located on the top so that it launches objects
1. 0 answers
2. 1,025 views
I have to translate this to indirect style is this correct?Original:Pero cien años después, las personas negras todavía no
1. 2 answers
2. 1,078 views
Is it not possible to talk to tutors or students directly?
1. 1 answer
2. 398 views
A 72.0 kg skateboarder wants to just make it to the upper edge of a "quarter pipe", a track that is one-quarter of a circle with
1. 1 answer
2. 1,456 views
I posted a the same problem with different numbers a minute ago. The answer to the problem below (same as the other with
1. 1 answer
2. 546 views
A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 28.9 m/s, the block
1. 1 answer
2. 592 views
A 9.60 g coin is placed 10.7 cm from the center of a turntable. The coin has a coefficient of static friction of 0.80 and a
1. 2 answers
2. 745 views
a runner run halfway around a circular track whose radius is 60 meters in 45 secswhat is the average velocity? what is the
1. 1 answer
2. 587 views
light travels at a constant speed of 3x10*11 cm/sec. how long does it take light to reach the earth a distance of 1.5x10*8 km.
1. 1 answer
2. 1,150 views
A thin 2kg box rests on a 6kg board 50cm long with 20cm hanging off the edge of a table. How far can the center of the box be
1. 2 answers
2. 4,769 views
Compressed air is used to fire a 41.0 g ball vertically upward from a 1.0-m-tall tube. The air exerts an upward force of 3.7 N
1. 1 answer
2. 1,413 views
A car is traveling at 95km/hr when it collides with a stone wall. The car comes to rest after the first 30 cm of the car is
1. 1 answer
2. 484 views
The captain of a ship at sea sights a lighthouse which is 120 feet tall.The captain measures the the angle of elevation to the
1. 2 answers
2. 4,778 views
In the figure below, m1 = 10.0 kg and m2 = 4.5 kg. The coefficient of static friction between m1 and the horizontal surface is
1. 2 answers
2. 1,004 views
A truck at rest at a stoplight accelerates uniformly with acceleration a = 9 meters/second2 for 6.8 seconds after the light
1. 0 answers
2. 542 views
Sketch the region enclosed by the given curves.Decide whether to integrate with respect to x or y. Then find the area of the
1. 1 answer
2. 937 views
Does anyone know what book will we be using for poems,short stories and literature in Grade 12?
1. 1 answer
2. 804 views
Out of 42 kids in a class twice as many failed Ela as math,4 failed both. If 7 failed neither, find how many failed each
1. 2 answers
2. 577 views
Under what circumstances does the sampling distribution of the proportion approximately follow the normal distribution?
1. 1 answer
2. 1,865 views

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