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a) Two air-track gliders of equal mass are initially moving in the same direction along a straight line. The rearmost glider has an initial speed of 4.7 m/s and the forward glider has a speed of 1.5 m/s. The collision is elastic.
What is the speed of the first glider (rearmost) after the collision?
b) What is the speed of the second glider (forward)?
Executive officers within an organization will often feel compelled and tempted to emphasize short-term results-net income for the current year-over long-term success and company survival.
If a salty crude sample was analyzed to have 110.6 ppm salt, calculate the pounds of salt per 1000 bbls of crude
A rocket with initial mass of 7.50×103 kg is fired in the vertical direction. Its exhaust gases are ejected at the rate of 4.50×101 kg/s with a relative velocity of 2.200×103 m/s. What is the initial acceleration of the rocket
Advise Gordon and Pamela about capital gains and income tax consequences and any effect that their son's tax treatment of the payment will have on them. You should discuss possible discounts and exemptions that may be available to them.
An Escort and a Camaro traveling at right angles collide and stick together. The Escort has a mass of 1200 kg and a speed of 30 km/h in the positive x direction before the collision. What was the speed of the Camaro
A transformer with 340 turns in its primary coil and 30 turns in its secondary coil is designed to deliver an average power of 1390 W with a maximum voltage of 67 V
A circuit contains a 150-O resistor, a 0.0570-H inductor, a 0.420-µF capacitor, and a source of time-varying emf connected in series. What is the average power drawn from the source of emf
You were recently hired as management director of the new I Can Business Incorporated (ICBI). You have been asked to establish policies and systems for the business. The first one you choose to work on is a financial reporting system.
Electromagnetic waves of wavelength 0.178 fall on a crystal surface. What is the distance between the crystal planes
A company purchased 100 units for $20 each on January 31. It purchased 100 units for $30 on February 28. It sold 150 units for $45 each from March 1 through December 31.
A certain spring is found not to obey Hooke's law; it exerts a restoring force Fx(x)=??x??x2 if it is stretched or compressed, Calculate the potential energy function U(x) for this spring. Let U=0 when x=0
The Houston Astrodome encloses a ground area of 37,000 m^2. Find the flux through the dome of the earth's magnetic field
q1. an electron librated from a hot filament cathode is attracted by an anode with a potential of 1200v positive with
A 2 kg rock is released from rest at a height of 29 m. neglect air resistance and determine the kinetic energy, gravitational potential energy, and total mechanical energy at each of the following heights: 20m; 15m; 5m; 9m.
If a container has a water level 20 cm above the base and you punch a hole in the side 12 cm high
A solid cylinder with a mass of 1.5 kg and a radius of 30 cm rotates about an axis through its center. What is the rotaional inertia of the solid cylinder
The angle of elevation theta is increased slowly from the horizontal. Illustrate at what value of theta does the block begin to slide (in degrees)?
How much work did movers do (horizontally) pushing a 150-{rm kg} crate 10.6 m across a rough floor without acceleration, if the effective coefficient of friction was 0.50.
A mass m = 14 kg rests on a frictionless table and accelerated by a spring with spring constant k = 5209 N/m. The floor is frictionless except for a rough patch, What is the length of the rough spot
A box is pushed across the floor, slide with a constant velocity, and is opposed by a friction force of 25N. What is the magnitude of the force? Choose the correct answer. A.Less than 25N B.Zero C.Greater than 25N D.25n
q1. in an 8.00 km race one runner runs at a steady 11.0 kmh and another runs at 14.3 .kmhr.how far from the finish line
A hanging copper wire with diameter 1.4mm (1.4e-3m) is initially 0.95 m long. Find the approximate value of the effective spring stiffness of the inter atomic force
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