Posted March 16th, 2010
by admin
JH asked: An automobile having a mass of 5000 kg is driven into a brick wall in a safety test. The bumper behaves like a spring of force constant 6.00 106 N/m and compresses 3.18 cm as the car is brought to rest. What was the speed of the car before impact, assuming that no mechanical energy is lost during impact with the wall?
Tags: Lost, Physics Problem, Safety Test
Posted in Physics | 1 Comment »
Posted March 16th, 2010
by admin
ana m asked: is increased by a factor of two, but the charges on each remain constant. How has the distance between the two changed. If you assume that the charge on the automobile is located at a single point.
Tags: Automobile Body, Droplet, Single Point
Posted in Physics | 2 Comments »
Posted March 16th, 2010
by admin
Ashley asked: When an automobile engine overheats and the radiator water begins to boil, the car can still be driven some distance before catastrophic engine damage occurs. Why? What determines the onset of really disastrous overheating?
Tags: Automobile Engine, Driven, Radiator
Posted in Physics | 2 Comments »
Posted March 14th, 2010
by admin
IntellectualCupcakeActivist asked: The four tires of an automobile are inflated to a gauge pressure of 2.1 multiplied by 105 Pa. Each tire has an area of 0.028 m2 in contact with the ground. Determine the weight of the automobile.
Tags: Automobile, Contact, Gauge Pressure
Posted in Physics | 1 Comment »
Posted March 13th, 2010
by admin
brandon asked: What is the centripetal acceleration of an automobile driving at 80.0 km/h on a circular track of radius 25.0 m?
Tags: Automobile, Radiu, Radius
Posted in Physics | 2 Comments »
Posted March 13th, 2010
by admin
Reaga asked: Suppose an automobile has 2100 J of kinetic energy. When it moves at twice the speed, what will be its kinetic energy?
8400 J
What’s its kinetic energy at three times the speed?
____?
Tags: Automobile, Kinetic Energy, Three Times
Posted in Physics | 2 Comments »
Posted March 12th, 2010
by admin
Hghsd asked: Does using an automobile’s air conditioner while driving increase fuel consumption?
What about driving with the lights on?
What about playing the car radio when parked with the engine off?
Explain in terms of conservation of energy.
Tags: Air Conditioner, Automobile, Car Radio
Posted in Physics | 3 Comments »
Posted March 11th, 2010
by admin
nytelight asked: What kinematics quantity is indicated by the speedometer of the automobile
Tags: Automobile, Speedometer
Posted in Physics | 3 Comments »
Posted March 6th, 2010
by admin
vk asked: Would you expect to find dc or ac in the filament of a light bulb in your home?
How about automobile?
Why is the speed of electricity so much greater than the speed of sounel?
Tags: Filament, Light Bulb, Speed Of Electricity
Posted in Physics | 1 Comment »
Posted March 6th, 2010
by admin
alwayzvivi asked: I need a walkthrough of the problem, not just the answer. thanks !
3.A 1000 kg sports car accelerates from zero to 25 m/s in 7.50 s. What is the average power delivered by the automobile engine?
a) 27.9 hp b) 40.6 hp c) 55.9 hp d) 70.2 hp e) 82.4 hp (Recall 1hp = 746 W)
Tags: Automobile Engine, D 70, Sports Car
Posted in Physics | 1 Comment »
