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Cooper

Questions (61)

The length of a rectangle is 2 inches less than twice its width. If the perimeter of the rectangle is 74 inches, what is the
1. 1 answer
2. 97 views
i need help rearanging my equation to solve for MtVt x Mt x Mole ratio (PS/S) = moles PS where KPS is PS and NaOH is T
1. 1 answer
2. 219 views
determine the domain, range, and intercepts in these questionj(x) = 4x^2 + 7x x^2 + 4x - 21
1. 1 answer
2. 261 views
A Ford Focus with a cross-sectional area of 3.00m^2 is driving on a highway at a speed of 88.0 km/hr, then accelerates to 113
1. 1 answer
2. 871 views
Express x^3-4/x^2(x+2) into partial fractions
1. 1 answer
2. 523 views
Describe a real-world situation that each expression might model. Tell what each variable represents.14. 40
1. 1 answer
2. 616 views
The height, in meters, of a projectile can be modeled by h= -4.9t^2 + vt + s where t is the time (in seconds) the object has
1. 3 answers
2. 5,069 views
Define a#b=ab-a-b+1 for all real numbers a and b. x # 7 = 42. What is the value of x?
1. 1 answer
2. 689 views
f(x)=x2−1, g(x)=2x+2, then (fg)(x)=x2−12x+2, x≠1 so is this correct
1. 1 answer
2. 323 views
f(x)=1x, g(x)=1x, then (f∘g)(x)
1. 6 answers
2. 323 views
A 1.25 kg skateboard is coasting along thepavement at a speed of 5.04 m/s when a 0.640 kg cat drops from a tree vertically
1. 2 answers
2. 4,472 views
What mass of sodium benzoate should you add to 150.00 ml of a 0.15M benzoic acid solution to obtain a buffer with a pH of 4.25?
1. 1 answer
2. 717 views
Calculate the ratio of NaF to HF required to create a buffer with a pH of 4.00.
1. 1 answer
2. 886 views
Sketch the graph f(x)=-2x^2(x-5)^3(x+2)^4.What would be my coordinates. I solved it and my graph looks nothing like the one on
1. 2 answers
2. 497 views
Sketch the graph f(x)=-2x^2(x-5)^3(x+2)^4.What would be my coordinates. I solved it and my graph looks nothing like the one on
1. 1 answer
2. 414 views
Find a polynomial function with integer coefficients with degree 4, one root 3+radical2, and another root 4-3i.I got
1. 1 answer
2. 586 views
A 0.552 g sample of ascorbic acid(Vitamin C) was dissolved in water to a total volume of 20.0 ml and titrated with 0.1103 M KOH.
1. 2 answers
2. 3,103 views
If there were only cats and dogs at the pound and the ratio of cats to dogs was 3:4 if there were 105 cats, how many animals
1. 1 answer
2. 684 views
A parallel-plate capacitor is constructed with circular plates of radius 0.056 m. The plates are separated by 0.25 mm, and the
1. 0 answers
2. 828 views
The electric flux through each of the six sides of a rectangular box are as follows:phi 1= +150.0 N*m^2/C; phi 2= +250.0
1. 1 answer
2. 1,073 views
A +5.0 uC charge experiences a 0.44 N force in the positive y direction. If this charge is replaced with a -2.7 uC charge, what
1. 0 answers
2. 1,031 views
A uniform electric field of magnitude 2.70×10^4 N/C makes an angle of 37 degrees with a plane surface of area 1.60×10^−2 m^2
1. 1 answer
2. 704 views
The electric field at the point x=5.00 cm and y=0 points in the positive x direction with a magnitude of 10.0 N/C. At the point
1. 0 answers
2. 812 views
An object with a charge of -4.4 uC and a mass of 1.4×10^−2 kg experiences an upward electric force, due to a uniform electric
1. 0 answers
2. 1,074 views
Four point charges are located at the corners of a square with sides of length a . Two of the charges are +q, and two are -q.Fin
1. 1 answer
2. 10,136 views
Two point charges, the first with a charge of +3.19×10^−6 C and the second with a charge of -4.32×10^−6 C , are separated
1. 0 answers
2. 805 views
Two ships in a heavy fog are blowing their horns, both of which produce sound with a frequency of 165.0 Hz One ship is at rest;
1. 1 answer
2. 1,697 views
A pair of in-phase stereo speakers is placed side by side, 0.85 m apart. You stand directly in front of one of the speakers, 1.2
1. 1 answer
2. 593 views
A motorcycle and a police car are moving toward one another. The police car emits sound with a frequency of 512 Hz and has a
1. 0 answers
2. 841 views
Write an expression for a transverse harmonic wave that has a wavelength of 2.8 m and propagates to the right with a speed of
1. 1 answer
2. 2,317 views
A ball rolls on a circular track of radius 0.65 m with a constant angular speed of 1.2 rad/s in the counterclockwise direction.P
1. 2 answers
2. 2,854 views
A mass attached to a spring oscillates with a period of 3.15 s. If the mass starts from rest at x= 4.10×10−2 m and time t= 0,
1. 0 answers
2. 655 views
A bunch of grapes is placed in a spring scale at a supermarket. The grapes oscillate up and down with a period of 0.41 s, and
1. 0 answers
2. 958 views
When a 0.213-kg mass is attached to a vertical spring, it causes the spring to stretch a distance d. If the mass is now
1. 0 answers
2. 901 views
Two people with a combined mass of 135 kg hop into an old car with worn-out shock absorbers. This causes the springs to compress
1. 0 answers
2. 752 views
A vibrating structural beam in a spacecraft can cause problems if the frequency of vibration is fairly high. Even if the
1. 0 answers
2. 863 views
A 0.55-kg air cart is attached to a spring and allowed to oscillate.If the displacement of the air cart from equilibrium is
1. 0 answers
2. 676 views
The position of a mass oscillating on a spring is given by x=(4.7 cm)cos [2pi t/(0.52 s)].What is the period of this motion?
1. 1 answer
2. 1,541 views
Your heart beats with a frequency of 1.35 Hz. How many beats occur in a minute?If the frequency of your heartbeat increases,
1. 0 answers
2. 1,118 views
A communications satellite with a mass of 450 kg is in a circular orbit about the Earth. The radius of the orbit is 2.9×10^4 km
1. 1 answer
2. 2,371 views
An equilateral triangle 10.0 m on a side has a 1.00-kg mass at one corner, a 2.00-kg mass at another corner, and a 3.00-kg mass
1. 0 answers
2. 918 views
An equilateral triangle 10.0 m on a side has a 1.00-kg mass at one corner, a 2.00-kg mass at another corner, and a 3.00-kg mass
1. 0 answers
2. 1,315 views
An astronaut exploring a distant solar system lands on an unnamed planet with a radius of 3800 km. When the astronaut jumps
1. 2 answers
2. 1,318 views
Suppose a planet is discovered orbiting a distant star with 13 times the mass of the Earth and 1/13 its radius. How does the
1. 1 answer
2. 2,873 views
Suppose one of the Global Positioning System satellites has a speed of 4.50 km/s at perigee and a speed of 3.52 km/s at apogee.
1. 1 answer
2. 938 views
Two 0.53-g basketballs, each with a radius of 17 cm, are just touching.How much energy is required to change the separation
1. 1 answer
2. 678 views
The largest moon in the solar system is Ganymede, a moon of Jupiter. Ganymede orbits at a distance of 1.07 X 10^9 m from the
1. 0 answers
2. 831 views
Gravity on Titan Titan is the largest moon of Saturn and the only moon in the solar system known to have a substantial
1. 0 answers
2. 900 views
When the Earth, Moon, and Sun form a right triangle, with the Moon located at the right angle, the Moon is in its third-quarter
1. 0 answers
2. 1,267 views
In each hand you hold a 0.15 kg apple.What is the gravitational force exerted by each apple on the other when their separation
1. 1 answer
2. 697 views
A torque of 0.13 N*m is applied to an egg beater. If the egg beater starts at rest, what is its angular momentum after 0.50 s?
1. 0 answers
2. 807 views
You pull downward with a force of 32 N on a rope that passes over a disk-shaped pulley of mass 1.3 kg and radius 0.075 m. The
1. 0 answers
2. 827 views
A baseball bat balances 61.1 cm from one end. If a 0.600 kg glove is attached to that end, the balance point moves 22.7 cm
1. 1 answer
2. 3,619 views
A uniform metal rod, with a mass of 3.0 kg and a length of 1.0 m, is attached to a wall by a hinge at its base. A horizontal
1. 1 answer
2. 1,475 views
A set of fossilized triceratops footprints discovered in Texas show that the front and rear feet were 3.2 m apart. The rear
1. 1 answer
2. 2,666 views
A fish takes the bait and pulls on the line with a force of 2.2 N. The fishing reel, which has a friction clutch that exerts a
1. 0 answers
2. 1,041 views
Consider the reaction, C2H4(g) + H2(g) ® C2H6(g), where DH = – 137 kJ. How many kilojoules are released when 55.3 g of C2H4
1. 2 answers
2. 2,797 views
How many ways can 6 cars line upis it 6 X 6 is it 6 squared?
1. 1 answer
2. 438 views
An 8.00-gram sampleyields 1.64grams of Zinc when the compound is decomposed. What is the compound?
1. 1 answer
2. 572 views
I posted at around 7:44 please help me, everytime I post, no one ever helps me, or it is too late...I only ever want physics
1. 1 answer
2. 590 views
A ball is kicked toward Ryan with an initial velocity of 21.0 m.s at an angle of 41 degrees above the horizontal. At that
1. 2 answers
2. 581 views

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