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Questions (92)

Bobby is standing near a lighthouse. He measured the angle formed from where he stood to the top of the lighthouse and it was 30
1. 4 answers
2. 2,355 views
A 5.00-g sample of octane is burned in a bomb calorimeter containing 2.00x10 exponent2 g H2O. How much energyin calis released
1. 1 answer
2. 868 views
Oregon, 2 1/4 %per month
1. 1 answer
2. 444 views
The latent heat of fusion of alcohol is 50 kcal/kg and its melting point is -54oC. It has a specific heat of 0.60 in its liquid
1. 1 answer
2. 1,870 views
A pulley system lifts a 500-lb block 1.0 foot with an effort of only 50 lb. If the 50 lb moves 30 feet, calculate the efficiency
1. 1 answer
2. 1,096 views
Calculate the total energy of 4.0 kg object moving horizontally at 20 m/s 50 meters above the surface.Please help me!!!!!
1. 2 answers
2. 1,003 views
If an object is thrown in an upward direction from the top of a building 160 ft high at an initial speed of 30 mi/h, what is its
1. 1 answer
2. 1,018 views
A skydiver is jumping from an airplane traveling at 10.0 m/s. The plane is 3520 m above the earth. The sky diver pulls his cord
1. 1 answer
2. 2,219 views
If the airplane is traveling at a velocity of 320 km/h to the north, how long will it take to reach its destination if that
1. 1 answer
2. 968 views
An object is thrown directly up (positive direction) with a velocity (vo) of 20.0 m/s and do= 0. Determine how long it takes to
1. 3 answers
2. 1,933 views
An object is dropped from a platform 100 feet high. Ignoring wind resistance, what will its speed be when it reaches the ground?
1. 5 answers
2. 5,001 views
An object is dropped from a platform 100 feet high. Ignoring wind resistance, what will its speed be when it reaches the ground?
1. 1 answer
2. 604 views
A rocket blasts off. In 10.0 seconds it is at 10,000 ft, traveling at 3600 mph. Assuming the direction is up, calculate the
1. 1 answer
2. 685 views
While traveling south on an expressway, a car traveling 60 mph (miles per hour) slows down to 30 mph in 12 minutes due to
1. 0 answers
2. 787 views
City B is northwest of City A, and the 400 mile trip by car takes 8 hours. The cities are 320 miles apart if able to travel in a
1. 0 answers
2. 766 views
If the odometer on the car reads 25.0 km at the beginning of a trip and 65.0 km a half hour later, what is the average speed of
1. 2 answers
2. 856 views
A car travels 30 km north in 25 min. and 40 km east in 35 min. What is the total distance traveled?
1. 1 answer
2. 510 views
To reach city A, you travel north for 2.00 hours covering 80.0 miles. You then turn due east and travel 45.0 minutes for another
1. 1 answer
2. 565 views
A caterpillar climbs up a one-meter wall. For every 2 cm it climbs up, it slides down 1 cm. It takes 10 minutes for the
1. 3 answers
2. 1,877 views
I just want to ask if there's a website in physics that you don't have to do the experiment on your own and you can just do it
1. 0 answers
2. 553 views
A car travels from City A to City B to the north. It takes 4 hours, and the road mileage is 200 miles. The map shows that the
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2. 1,124 views
If a car travels 60 mi. north for one-half hour, 100 mi. west for one hour, and 60 mi. south for 30 minutes, what is the total
1. 1 answer
2. 549 views
Please help me with this!! I really can't find it.1) This scientist used his device by dropped a spool of wire through a
1. 1 answer
2. 1,219 views
1) Assume that you have two objects one with a mass of 10 kg and the other with a mass of 15 kg each with a charge of +3.0x10^-6
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2. 1,038 views
1) Assume that you have two objects one with a mass of 10 kg and the other with a mass of 15 kg each with a charge of +3.0x10^-6
1. 0 answers
2. 1,051 views
How do you remove the 2 pi in this problem?csc 19pi/4 remove 2 pi -> (8pi/4) -> 11pi/4 -> 3pi/4 >> i really don't know how do
1. 2 answers
2. 524 views
• what is the SI unit for electric force ?
1. 1 answer
2. 496 views
* JJ Thomson *a) How does his experiment of cathode ray tube relates to electrostatics? >> PLEASE HELP ME!! :( :)
1. 1 answer
2. 501 views
* JJ Thomson *a) How does his experiment of cathode ray tube relates to electrostatics? >> PLEASE HELP ME!! :( :)
1. 0 answers
2. 416 views
* JJ Thompson ** what was he credited for discovering the cathode ray tube? * How does his experiment relate to electrostatics?
1. 0 answers
2. 1,052 views
* JJ Thompson* what was he credited for discovering the cathode ray tube? * How does his experiment relate to electrostatics?
1. 0 answers
2. 494 views
1) Peter is heating water on the stove to boil eggs for a picnic. How much heat is required to raise the temperature of his
1. 2 answers
2. 4,941 views
1) Peter is heating water on the stove to boil eggs for a picnic. How much heat is required to raise the temperature of his
1. 2 answers
2. 1,569 views
Love of Life by Jack LondonI'm really having problems, how to start the body of my essay in this story. Can you give me some
1. 2 answers
2. 500 views
Love of Life by: Jack LondonWhat is the cite of naturalism in the essay?? Please help me with this!! :( :) Thank you!!
1. 2 answers
2. 1,118 views
Convert from DMS to Radians1) 61degree 24' 2) 75degree 30' Convert from Radians to Degress 1) 2 2) 1.3 Please help how to solve
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2. 577 views
Convert from DMS to Radians1)61degree 24' 2) 75degree 30' Convert from Radians to Degrees 1) 2 2) 1.3 Please Help me, just tell
1. 1 answer
2. 540 views
Wesley and Delia are playing a math game. Wesley gives Delia these step to follow.Step 1: Multiply a number by 6 and then
1. 2 answers
2. 736 views
1) What is the equivalent of this?-5x(2x+7y)+7xy-4x(y+3)
1. 1 answer
2. 379 views
A 2 kg cart rolls across the floor and runs into the wall and sticks. Before the collision the cart has a velocity of 4 m/s in
1. 1 answer
2. 1,020 views
have you watched the movie Freedom Writer? can you please help me with my assignment?1) consider the reasons why the groups have
1. 2 answers
2. 920 views
1) A 1 kg moving at 1 m/s ha s a totally inelastic collision with a 0.7 kg mass. What is the speed of the resulting combined
1. 1 answer
2. 600 views
A 2 kg cart rolls across the floor and runs into the wall and sticks. Before the collision the cart has a velocity of 4 m/s in
1. 0 answers
2. 595 views
1) While Laurie is boiling water to cook spaghetti, the phone rings, and all 1.5 kg of water boils away during her
1. 3 answers
2. 1,890 views
1) A racing car has a mass of 1525 kg. What is its kinetic energy if it has a speed of 35 m/s?* 2-3 Conservation of Momentum 2)
1. 1 answer
2. 1,515 views
1) While Laurie is boiling water to cook spaghetti, the phone rings, and all 1.5 kg of water boils away during her
1. 1 answer
2. 962 views
Finishing his ginger ale, Ramesh stands at party holding his insulated foam cup that has nothing in it but 0.100 kg of ice at
1. 1 answer
2. 1,077 views
1) Emily is testing her baby's bath water and finds that is too cold,so she adds some hot water from kettle on the stove. If
1. 2 answers
2. 3,826 views
1) Nova, whose mass is 50.0 kg, stays out skiing for too long and her body temperature drops by 2.00 degree celsius . What is
1. 1 answer
2. 1,772 views
1) A box with a mass of 17 kg is moving at a velocity of 3.75 m/s. If the box was pushed with a force of 75 N how far did it go?
1. 1 answer
2. 596 views
1) A 20 kg rock is on the edge of a 100 m cliff.a. What potential energy does the rock possess relative to the base of the
1. 2 answers
2. 12,127 views
1) A racing car has a mass of 1525 kg. What is its kinetic energy if it has a speed of 35 m/s?2) How much potential energy does
1. 1 answer
2. 1,211 views
1.) Two people of the same mass climb the same flight of stairs. The first person climbs the stairs in 25 s; the second person
1. 5 answers
2. 4,383 views
* Pressure *1) what other ways can the pressure of a gas be changed? * Internal Energy * 2) A cup of hot tea is poured from a
1. 0 answers
2. 933 views
*polynomial in standard form1)5/12+7/18=5/6 2) 3x/(x+1)-1/(x)=______/x^2-1x
1. 1 answer
2. 345 views
fraction1) 5/12+7/18-5/6 2) 3x/x-1-1/x=_____/x^2-1x 3) x+1/x^2-5x+6-3x+11/x^2-x-6= 4)2x^2-3x-1 5) 3x^2+2x-2 6) x^2-3x-9 4-5 with
1. 1 answer
2. 291 views
1.) How much energy does a 60 W light bulb consume in 1 hour?2.) Beth pulled her brother (m=85 kg) in a 10 kg sled with a
1. 1 answer
2. 607 views
1) A 1 kg mass moving at 1 m/s has a totally inelastic collision with a 0.7 kg mass. What is the speed of the resulting combined
1. 1 answer
2. 808 views
1.)A 0.5 kg hockey puck moving at 35 m/s hits a straw bale, stopping in 1 s.a) What impulse is delivered to the ball? b) What
1. 0 answers
2. 491 views
1.)A 0.5 kg hockey puck moving at 35 m/s hits a straw bale, stopping in 1 s.a) What impulse is delivered to the ball? b) What
1. 0 answers
2. 1,291 views
1) A 1 kg mass moving at 1 m/s has a totally inelastic collision with a 0.7 kg mass. What is the speed of the resulting combined
1. 1 answer
2. 2,024 views
1) A 0.50 kg object is at rest. A 3.00 N force to the right acts on the object during a time interval of 1.50 sa) What is the
1. 1 answer
2. 2,652 views
1) A 1 kg mass moving at 1 m/s has a totally inelastic collision with a 0.7 kg mass. What is the speed of the resulting combined
1. 2 answers
2. 1,434 views
1.)A 0.5 kg hockey puck moving at 35 m/s hits a straw bale, stopping in 1 s.a) What impulse is delivered to the ball? b) What
1. 0 answers
2. 551 views
1) Two 1 kg balls move away from each other, one traveling 5 m/s to the right, the other 5 m/s to the left. What is the
1. 1 answer
2. 4,077 views
1.) A 10,000 kg railroad car traveling at a speed of 24.0 m/s strikes an identical car at rest. If the cars lock together as a
1. 1 answer
2. 1,202 views
1.) A 10,000 kg railroad car traveling at a speed of 24.0 m/s strikes an identical car at rest. If the cars lock together as a
1. 1 answer
2. 837 views
Quadratic Formula1.) x+6/x=-7 2.) 4x/x+4 + 3/x-1 = 15/x^2+3x-4 3.) x+3/x - 2/x+3 = 6/x^2+3x formula: -B+ sqrt B^2 +
1. 1 answer
2. 402 views
a) A tennis racket a 450 N force on a 0.05 kg tennis ball over a 0.006 s time period. What is the impulse applied to the ball?b)
1. 1 answer
2. 1,266 views
a) what is the momentum of a 4.6 kg baseball moving at 1.4 m/s?b) a child is running with a velocity of 4.5 m/s and has a
1. 1 answer
2. 712 views
1.) A car (m=1200 kg) moves form 2.0 m/s to 15.0 m/s in 100 m.a) What is the initial kinetic energy of the car? b) What is the
1. 2 answers
2. 700 views
1.) A 500 kg roller coaster is pulled to the top of a hill 45 m high and arrives at the top with a zero speed.a) how much work
1. 2 answers
2. 2,461 views
1.) At one point in its fall, an object (m=2.5 kg.) has a kinetic energy of 5 J(joule) and a potential energy of 10 J.a) what is
1. 1 answer
2. 768 views
1.)A ball (m 0.5 kg) starts from rest and has 300 J(joule) of work applied to it.a) what is the initial kinetic energy of the
1. 1 answer
2. 1,039 views
an electron (m= 9.11 x 10^-31 kg) and a proton (m+ 1.6 x 10^-27 kg) are separated by 1.0 x 10^-10 m. what is the gravitation
1. 0 answers
2. 1,017 views
The sun has a mass of 1.99x10 30 kg the earth has a mass of 5.98x10 24 kg and is 1.496x10 11 m from the suna) Calculate the
1. 2 answers
2. 2,113 views
f(x)= x+1 and g(x)= square root of x-3please help me!
1. 1 answer
2. 328 views
a child knocks a ball off a table with a height of 0.60 m. The initial velocity of the ball is 2.4 m/s. What will be the
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2. 519 views
an eagle flying in a horizontal path drops a twig from a height of 8.2 m. The twig travels 12 m horizontally before it hits the
1. 1 answer
2. 615 views
a tennis ball is thrown vertically upward with an initial velocity of +8.0 m/sa) what is the velocity of the ball when it
1. 0 answers
2. 1,115 views
a tennis ball is dropped from the top of 12.2 m tall building.b) how long does it take for the ball to hit he ground? c) what is
1. 1 answer
2. 642 views
a ball is thrown up and reaches a maximum height of 5 m.a) what is the initial velocity of the ball? b) how long does it take
1. 2 answers
2. 562 views
Wondering if I am doing this correctly??If net taxes are increased by 3 billion dollars by how much would we expect real GDP to
1. 0 answers
2. 477 views
a bb gun has a muzzle velocity of 325 ft/sec. How long will it take the bb to hit the ground?How far will the bb travel?
1. 3 answers
2. 385 views
For the sentence, The school administration declared a new rule that all students, even boys, must wear pink socks, but when
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2. 448 views
A man pushes a lawn mower on a level lawn with a force of 200N it 40% of this force is directed downward how much woek is done
1. 1 answer
2. 1,783 views
Ok so this probably seems easy but I am not sure how to work these. We are given a table with dataPrice Paper Price 2010 2 100
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2. 513 views
The Constitution created a confederate system of government?
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2. 1,092 views
Most amendments have _____.(A.) expanded and clarified the principles embodied in the Constitution B. radically changed and
1. 1 answer
2. 504 views
With which of the following statements would the Founding Fathers have disagreed?A.Government, which exists to regulate the
1. 1 answer
2. 772 views
Write a flow proof:if angle 1 and angle 2 are vertical angles, and angle 2 and angle 3 are complementary, then angle 1 and angle
1. 0 answers
2. 738 views
Who called for completeself government for the settlers in the North west territory.
1. 1 answer
2. 348 views

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