Bounty | Question |
---|---|

$1.00 | Past due
A 0.150 kg glider is moving to the right on a frictionless, horizontal air track with a speed of 0.880 m/s .
A 0.150 kg glider is moving to the right on a frictionless, horizontal air track with a speed of 0.880 m/s . It has a head-on collision with a 0.294 kg glider that is moving to the left with a speed of 2.26 m/s . Suppose the collision is elastic.
a)Find the magnitude of the final velocity of the 0.150 kg glider.(m/s).
b)Find the magnitude of the final velocity of the 0.294 kg glider.(m/s).
Physics > General Physics |

$1.00 | Past due
A block is placed on an elevator platform that moves downward with decreasing speed
A block is placed on an elevator platform that moves downward with decreasing speed
Physics > General Physics |

$1.00 | Past due
AP Physics
A motorcycle daredevil wants to ride up a 50.0m ramp set at a 30.0° incline to the ground. It will launch him in the air and he wants to come down so he just misses the last of a number of 1.00m diameter barrels. If the speed at the instant when he leaves the ramp is 60.0m/s , how many barrels can be used?
(CORRECT ANSWER D.)
a. 79
b. 318
c. 332
d. 355
e. 402
I'm not sure how you get to the answer.
I start by solving for time in the equaton: Yf = Yi + Viy + 1/2g(t)^2
Plugging in: 0 = 50sin30...
Physics > Mathematics in Physics |

$1.00 | Past due
Physics Questions
The file has been added as a pdf. I am having troubling answering the questions from 7 - 20
Physics > General Physics |

$30.00 | Past due
Applications of the Scientific Method
The scientific method is useful in problem solving and decision-making in a wide variety of fields. In this assignment, you will demonstrate how to use the scientific method to make decisions and solve problems in your field of study or everyday life.
Identify a specific problem often faced in your field of study or everyday life. Research your problem and assess your data / research. Examples of such problems could be:
Business
Developing a new product that is superior to competitor’s brands;...
Physics > General Physics |

$1.00 | Past due
to vikas only
Write a 700 word paper describing the benefits of using statistical data in criminal justice. Special attention should be given to the following:
Mean
Median
Mode
Sample
Population
When are inferential and descriptive statistics appropriate in criminal justice statistics?
Physics > General Physics |

$1.00 | Past due
general physics for university students
1) An object falls a distance h from rest. If it travels 0.48h in the last 1.00 s, find (a) the time and (b) the height of its fall.
2) A steel ball is dropped from a building's roof and passes a window, taking 0.12 s to fall from the top to the bottom of the window, a distance of 1.20 m. It then falls to a sidewalk and bounces back past the window, moving from bottom to top in 0.12 s. Assume that the upward flight is an exact reverse of the fall. The time the ball spends below the bottom of the...
Physics > General Physics |

$1.00 | Past due
A typical car battery stores about 3.0 kW*h of energy. What is its power output if it drains completely in 1 minute? Wha
A typical car battery stores about 3.0 kW*h of energy. What is its power output if it drains completely in 1 minute? What is its power output if it drains completely in 1 hour? What is its power output if it drains completely in 1 day?
Physics > Computational Physics |

$1.50 | Past due
Angular Momentum Problem
Large meteors can impact the earth with speeds of 80,000 km/h. If such a meteor were to impact at a point on the plane of Earth's equator, resulting in a change of Earth's angular momentum by 80x10^12 kg*m^2/s (an insignificant change, thankfully), calculate the mass of the meteor. (The radius of Earth = 6.38x10^6m)
Physics > General Physics |

$50.00 | Past due
Help me model an ideal gas?
I need to model an ideal gas in Matlab however I have no idea what I'm doing any chance someone could help me?
The code needs to produce a real time simulation and ideal involve collisions with walls and other particles. It can be in 2D and it might also be a good idea to manage the temperature gradient i.e. energy of the particles.
This should Ideally be emailed to me so it is not published online anywhere
Physics > Computational Physics |

$1.00 | Past due
Find the electric potential V(x) in the rod as a function of x.
The resistivity of a semiconductor can be modified by adding different amounts of impurities. A rod of
semiconducting material of length L and cross-section area A lies along the x-axis between x = 0 and x
= L. The material obeys Ohm’s law, and its resistivity varies along the rod according to
ρ (x) = ρ0 exp (-x/L).
Find the electric potential V(x) in the rod as a function of x.
so, The resistance is R= ρ0L(1- exp-1)/A
and the current is: I= VoA/ ρ0L(1- exp-1)
Physics > Electricity and Magnetism |

$1.00 | Past due
Physics 10
A championship weightlifter did 1.10 x 10^4 J of work on a set of barbells weighing 3680 N. How much gravitational potential energy did the barbells have at the maximum height of the lift?
Physics > General Physics |

$10.00 | Past due
Karen100 Assignment
The city that I stay in is Jackson Mississippi and for part 2 you can just guess. I need by 11:59 tonight but if cannot do by then you can have it ready in the morning.
Physics > General Physics |

$1.00 | Past due
Hello This is just for Olufunmilolal
Hello This is just for Olufunmilolal
Physics > Condensed Matter Physics |

$10.00 | Past due
PH221 WEEK 5 LAB- CRITICAL ANGLE
The Critical Angle
Due at the end of Week 5
This week’s lab is based on our knowledge of Snell’s Law:
n1 sin θ1 = n2 sin θ2
and subsequently the critical angle:
sin θc = nr/ni
Imagine light traveling in these three situations:
Water to Air (nwater = 1.33)
Glass to Air (nglass = 1.49)
And
Glass to Water.
Please make a plot of angle of refraction versus incident angle for each of these, and please point out where the critical angle is.
Please remember to do the full report here.
Physics > Quantum Field Theory |

$10.00 | Past due
PH221 Week 6 Lab - Wave Function and It's Probability
The key part of this week is looking at wave functions and what they mean.
The wave function is used to determine various properties in physics. One of them is the probability of where a particle (usually an electron) is at one point in time. So let’s look at the wave function for the infinite square well. This is given as: (Please see attached screen shot)
Where L is the width of the well, x is the position and n is the integer order of the wave function. So please plot this and |ψ|2 for...
Physics > Waves |

$1.00 | Past due
Young's modulus of this wir
A 0.600-mm diameter wire stretches 0.5% of its length when it is stretched with a tension of 20 N. What is the Young's modulus of this wire?
Physics > General Physics |

$23.50 | Past due
I need help please statistic
I need someone to help me please with this statistic assignment due tomorrow before 12 am eastern time. the expert needs to have experience with MINITAB express. if anyone can help please i will appriciate that.
Physics > General Physics |

$1.00 | Past due
Electromagnetic waves
sometimes neon signs located near a powerful radio station are seen to glow faintly at night, even though they are not turned on. What is happening?
Physics > Electricity and Magnetism |

$1.00 | Past due
Heating Effect of Current
A piece of nichrome wire is embedded into a 1kg block of ice at -10°C . A current of 3.0 amperes and a voltage of 12volts is maintained in the wire. How long will it take to separate the wire from the ice?
Physics > General Physics |

$8.00 | Past due
physics issues
can any one help me with this all attached problems of physics..I need solution with explanation..
Physics > Waves |

$1.00 | Past due
Answer to question
Speeches that with stand the test of time are usually filled with
Physics > Cosmology |

$1.00 | Past due
A 20-m long steel wire (cross-section 1.0 cm2, Young's modulus 2.0 1011 N/m2), is subjected to a load of 25 000 N. H
A 20-m long steel wire (cross-section 1.0 cm2, Young's modulus 2.0 1011 N/m2), is subjected to a load of 25 000 N. How much will the wire stretch under the load?
Physics > General Physics |

$1.00 | Past due
help please
Kangaroos can easily jump as far 8.0 . If a kangaroo makes five such jumps westward, how mank jumps must it make northward to have a northwest displacement with a magnitude of 68m ? What is the angle of the resultant displacement with respect to north ?
Physics > General Physics |

$1.00 | Past due
Quest Homework
An airplane is flying in a horizontal circle at a speed of 152 m/s. The 78.1 kg pilot does not want his radial acceleration to exceed 4.3 g.
The acceleration of gravity is 9.8 m/s2 .
What is the minimum radius of the circular path?
Physics > General Physics |

$1.00 | Past due
Elasticity assignment
A 0.600-mm diameter wire stretches 0.5% of its length when it is stretched with a tension of 20 N. What is the Young's modulus of this wire?
Physics > General Physics |

$1.00 | Past due
I'm Stumped on Atwood's Machine
Let the masses of blocks A and B be 3.50kg and 2.00kg, respectively, the moment of inertia of the wheel about its axis be 0.400kg*m^2 and the radius of the wheel be 0.120m.
1-Find the linear accelerations of block A if there is no slipping between the cord and the surface of the wheel.
2-Find the linear accelerations of block B if there is no slipping between the cord and the surface of the wheel.
3-Find the angular acceleration of the wheel if there is no slipping between the cord and the...
Physics > General Physics |

$10.00 | Past due
A toyota prius
A toyota prius comes with 15 inch radius tires. Would putting 17 inch tires increase it's fuel economy. Discuss both sides of the issue
Physics > General Physics |

$1.00 | Past due
Uncertainty
Which of the following behaves the most classically (i.e., has the smallest uncertainties)?
Water molecule
Electron
Proton
Quark
Hydrogen atom
Physics > Quantum Physics |

$5.50 | Past due
Physics help
A 1000 kg aircraft going 25 m/s collides with a 1500 kg aircraft that is parked and they stick together after the collision and are going 10 m/s after the collision. If they skid for 17.9seconds before stopping, how far did they skid? Hint: Are the aircraft moving at a constant velocity after the collision or do they experience an acceleration?
Physics > General Physics |