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Emily
Questions (1,829)
A football is thrown toward a receiver with an initial speed of 17.5 m/s at an angle of 35.2◦ above the horizontal. At that
1 answer
532 views
A particle travels horizontally between two parallel walls separated by 18.4 m. It moves toward the opposing wall at a constant
1 answer
933 views
4.if cotθ� = -√15/7 , use the fundamental identities to find cosθ� > 0
9.A projectile is fired with an initial velocity of 88
2 answers
447 views
In the sentence the homework was easier for Tyrone after he received the chapter.
Is the dependent clause was easier for Tyrone?
6 answers
484 views
I have to underline the dependent clause and tell whether it is an adjective, adverb, or noun. Can you help me with the
13 answers
1,291 views
A plane is flying horizontally with speed
152 m/s at a height 2110 m above the ground, when a package is dropped from the plane.
0 answers
798 views
A truck travels up a hill with a 10
◦ incline. The truck has a constant speed of 21 m/s. What is the horizontal component of
0 answers
746 views
A person standing close to a railroad crossing hears the whistle of an approaching train. He notes that the pitch of the whistle
2 answers
680 views
Two pipes, equal in length, are each open at one end. Each has a fundamental frequency of 475 Hz at 297 K. In one pipe the air
1 answer
728 views
Can someone please proof-read what I have so far on my Spanish essay for finals? Here it is so far: Antes de ver al aeropuerto,
3 answers
1,150 views
A sample of gas occupies a volume of 59.9 mL. As it expands, it does 126.2 J of work on its surroundings at a constant pressure
2 answers
765 views
A sample of a compound containing only Br and O reacts with an excess of H2 to give 6.601 g of HBr and 3.919 g of H2O. What is
2 answers
558 views
Use 5.98 × 10
24 kg as the mass of the Earth. A 2350 kg meteorite has a speed of 143 m/s just before colliding head-on with the
0 answers
700 views
Note: Take East as the positive direction.
A(n) 86 kg fisherman jumps from a dock into a 131 kg rowboat at rest on the West side
1 answer
1,470 views
A 67.3 kg ice skater moving to the right with
a velocity of 2.52 m/s throws a 0.151 kg snowball to the right with a velocity of
0 answers
786 views
A 2.24 kg mass on a frictionless horizontal track is attached to the end of a horizontal spring whose force constant is 4.45
1 answer
520 views
A 83.5 kg astronaut is working on the engines of a spaceship that is drifting through
space with a constant velocity. The
1 answer
792 views
A baseball player uses a pitching machine to
help him improve his batting average. He places the 43.4 kg machine on a frozen
2 answers
4,491 views
A solid metal ball and a hollow plastic ball
of the same external radius are released from rest in a large vacuum chamber. When
3 answers
2,124 views
Calculate delta H for this reaction:
N2 + 3H2 --> 2NH3 I am given the bond dissociation energy for N-N (163 kJ/mol), H-H (436
2 answers
2,699 views
The observed wave speed is 20.3 m/s when the suspended mass is m = 3.07 kg. What is the mass per unit length of the string?
I
0 answers
1,117 views
I'm trying to do this precipitation reaction problem, but I don't understand part of it.
The question is: Does a precipitate form
1 answer
1,519 views
If saturated solution of barium chloride at 30 degree Celsius contains 150g water how much additional barium chloride can be
2 answers
759 views
In Romeo and Juliet, what is ironic about Lord Capulet's praise of Friar Lawrence in Act 4 Scene 2?
0 answers
776 views
Compara and contrast your modern immigrant to historical immigrants. Atleast 10 bullets on each section. (Historical
1 answer
476 views
Two different simple harmonic oscillators have the same natural frequency (f=5.60 Hz) when they are on the surface of the Earth.
1 answer
2,292 views
A 2.24 kg mass on a frictionless horizontal track is attached to the end of a horizontal spring whose force constant is 4.45
0 answers
406 views
Baking is a major project for the holidays.
Is the verbal baking? Is this a gerund or a participle and why? Baking in the oven,
5 answers
1,177 views
All else equal will the confidence intervals for samples of size 80 be longer or shorter than those for sample of size 40?
1 answer
393 views
decide on a topic which is adding drinks to each purchase from the lunch for which they would like to collect data and
design a
1 answer
1,208 views
can animals be consumers and decomposers?
or are they only separated?
1 answer
919 views
Is this wrong?
Tienen que hacen las maletas. Salen para Monterrey mañana.
2 answers
818 views
decide on a topic which is adding more clubs for which they would like to collect data and
design a survey for school which could
1 answer
661 views
How long it will take for an investment of 2000 dollars to double in value if the interest rate is 9.5 percent per year,
1 answer
1,020 views
decide on a topic which is adding more clubs for which they would like to collect data and
design a survey for school which could
1 answer
1,172 views
"Liquids A and B, which have identical molar volumes, are mixed together in equal volumes to form a 75 mL mixture. The liquids
0 answers
539 views
Ag(NO3)+ CaClYields to AgCl + (NO3)Ca
KI + Pb(NO3) yields to K(NO3)+ IPb What is the precipitate in both??
1 answer
479 views
5-3r=-37 r= ?
x/8+10=13 x= ?
1 answer
293 views
5-3r=-37 r= ?
x/8+10=13 x= ?
1 answer
289 views
Is a bar graph better than a pictograph to display data? Explain.
4 answers
478 views
A golf club strikes a 0.061-kg golf ball in order to launch it from the tee. For simplicity, assume that the average net force
1 answer
1,089 views
The brakes of a truck cause it to slow down by applying a retarding force of 8740 N to the truck over a distance of 1130 m. What
1 answer
7,891 views
Find the total kinetic energy content of 1.55 moles of an ideal gas at temperature 435 K
1 answer
626 views
Gas is contained in an 8.45 liter vessel at a temperature of 19.8oC and a pressure of 8.70 atm. Determine the number of moles of
1 answer
661 views
An automobile fuel tank is filled to the brim with 45.3 liters (12.1 gallon) of gasoline at 14.5 degrees C. Immediately
2 answers
2,855 views
The New River Gorge bridge in West Virginia is a 514 m long steel arch. How much will its length change between temperature
1 answer
1,309 views
Nathan sells pencils in boxes of 10 and 12. Roy bought x boxes of 12 pencils.
(a) Write down an expression, in terms of x, for
1 answer
522 views
A flatbed egg truck is in a drag race. The truck is carrying a 450 lb. crate of eggs in the back. The coefficients of friction
1 answer
670 views
When the speed booster is set up horizontally at the edge of a table (h=1.11 m) it sends a toy car of mass m=0.06kg in the
0 answers
442 views
The essential part of the Hot Wheels speed booster is made of two fast spinning, rubberized disks of radius r=0.048 m each. The
0 answers
1,235 views
A 58-kg vampire and 176-kg werewolf clash during the Feat of Strength part of the annual celebration of Festivus. The werewolf
1 answer
481 views
7+l/5=-4
(n/-3)-2=8
2 answers
281 views
7+l/5=-4
46-3t=-23 6+a/4=8 6h+24=0 -5b-23=9 15-3e=-6 15w-4=41 6s+3=-27 14o-17=39 n/-3-2=8
3 answers
392 views
suppose an automobile has a kinetic energy of 2900J. when it moves with 3 times the speed, what will be its kinetic energy?
answe
0 answers
501 views
A 8.52 -kg block of metal is suspended from a scale and immersed in water as in Figure P9.30. The dimensions of the block are
1 answer
1,289 views
In scuba diving, a regulator is used so that the pressure of the air the diver breathes is close to that of the ambient water. A
1 answer
2,072 views
An evacuated spherical diving bell containing a camera is in the ocean at a depth of 107 m. It has a flat, transparent, circular
1 answer
1,958 views
Piston 1 has a diameter of 0.643 cm.
Piston 2 has a diameter of 4.59 cm. In the absence of friction, determine the force required
1 answer
4,377 views
Ann makes 4 signs in 1 and 1/4 hours and if he worked 6 2/8 hours how many signs can he make?
1 answer
323 views
Astronomers can calculate the mass of a planet by using the orbital parameters of one of its moons. Consider a hypothetical
1 answer
1,544 views
A block of mass 0.86 kg is suspended by a string which is wrapped so that it is at a radius of 0.061 m from the center of a
0 answers
726 views
The two masses (m1 = 4.96 kg and m2 = 2.90 kg) in the Atwood's machine shown in the figure below are released from rest, with m1
0 answers
557 views
A hungry 675 -N bear walks out on a beam in an attempt to retrieve some "goodies" hanging at the end. The beam is uniform,
2 answers
685 views
To determine the location of his center of mass, a physics student lies on a lightweight plank supported by two scales L = 2.44
0 answers
612 views
After you pick up a spare, your bowling ball rolls without slipping back toward the ball rack with a linear speed of v = 3.27
2 answers
1,622 views
Calculate the molarity of the following solution: 7.48g of calcium chloride (CaCl2) in 215 mL of aquous solution.
1 answer
490 views
consider the interior angles of the triangle with vertices
p=(=4.39,-0,948) q=(3.03,8.31) r=(4.21,6.54) find the angle of the
1 answer
411 views
a total of $1381.8 per year is received in interest from three investments. the interest rates for the three investments are
1 answer
547 views
find the area of the sector of the disk of radius r=16 and with arc length s=16
0 answers
388 views
A high-speed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball,
1 answer
1,116 views
A high-speed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball,
1 answer
1,019 views
a student stands on an elevator scale at rest on the 64th floor of a building. the scale reads 847 N. As the elevator moves up
1 answer
666 views
Writing with Possessive Nouns
Directions Use possessive nouns or strong nouns to replace each capital lettered phrase.
5 answers
538 views
a horizontal force of magnitude 18.0 N is applied to a 3.07 kg book as the book slides a distance d = 0.34 m up a frictionless
0 answers
600 views
How do you simplify terms like 3z^2 x 2z^3?
0 answers
374 views
An 8.82g bullet is fired into a 235g block that is initially at rest at the edge of a table of h = 1.05 m height (see the figure
0 answers
461 views
A bicycle has wheels with a diameter of 0.630 m. It accelerates uniformly and the rate of rotation of its wheels increases from
2 answers
1,455 views
A tire placed on a balancing machine in a service station starts from rest and turns through 4.82 revolutions in 1.48 s before
2 answers
772 views
a 4 kg mass is dropped on a spring below. the mass falls 2 meters before stopping and the spring compresses 40 cm in the
1 answer
384 views
An 8.82g bullet is fired into a 235g block that is initially at rest at the edge of a table of h = 1.05 m height (see the figure
0 answers
503 views
A roller-coaster vehicle has a mass of 400 kg when fully loaded with passengers. r1 = 11 m and r2 = 17 m. If the vehicle has a
0 answers
705 views
A tire placed on a balancing machine in a service station starts from rest and turns through 4.82 revolutions in 1.48 s before
0 answers
1,115 views
A tire placed on a balancing machine in a service station starts from rest and turns through 4.82 revolutions in 1.48 s before
0 answers
498 views
Which of the following correctly describe the gravitational attraction between Earth and the Moon?
-The Earth and the Moon exert
0 answers
739 views
What is the velocity of an electron ejected, if any, from a piece of metal whose work function is 2.227 x 10^-19 J when a photon
1 answer
469 views
Would "the flight to cancun" be an anecdote or a memoir?
Would "a day in Canada" be an anecdote or a memoir?
5 answers
590 views
A 29.0 kg child slides down a long slide in a playground. She starts from rest at a height h1 of 17.00 m. When she is partway
1 answer
1,506 views
If the spring is compressed a distance of 0.150 m and the gun fired vertically as shown, the gun can launch a 27.6g projectile
1 answer
570 views
Sue and Jenny kick a soccer ball at exactly the same time. Sues foot exerts a force of 40.6 N to the north. Jennys foot exerts a
0 answers
1,015 views
Two lifeguards pull on ropes attached ton a raft. If they pull in the same direction, the raft experiences a net external force
0 answers
695 views
How many milliliters of a 0.81 M HCl solution are needed to react completely with 2.2 g of zinc to form zinc(II) chloride?
1 answer
709 views
Which one of these five words does not belong and why:
Acupuncture Puppet Corpuscle Juniper Repulsion
1 answer
446 views
Which sentence contains a helping verb?
A. The group of small children startled the ducklings. B. I walked to the movie theater.
6 answers
799 views
This deals with a cam follower. The slotted bar rotates with constant angular velocity, theta=12 rad/s. The follower 'A' follows
0 answers
449 views
A carpenter asks his helper to toss an apple to him. The carpenter is 12 ft up and 12 ft to the right of the helper, who throws
2 answers
456 views
A carpenter asks his helper to toss an apple to him. The carpenter is 12 ft up and 12 ft to the right of the helper, who throws
0 answers
428 views
This deals with a cam follower. The slotted bar rotates with constant angular velocity, theta=12 rad/s. The follower 'A' follows
0 answers
701 views
The sedation Act allowed the national government to jail people for
1 answer
355 views
There are two stable isotopes of Gallium Their masses are 68.92558 and 70.9247050 AMU. If the average atomic mass of gallium is
1 answer
1,899 views
This is meant to be simple, but for some reason I'm not getting the right answer.
Question is: Perhaps the most famous horse race
3 answers
574 views
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