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Two train cars are on a straight, horizontal track. One car starts at rest and is put in motion with a constant acceleration of 1.80 m/s2. Where will the cars collide
Picture yourself in the castle of Helm's Deep from the Lord of the Rings. You are on top of the castle wall and are dropping rocks on assorted monsters that are 15.55 m below you. How long after you
A physics professor demonstrates the Doppler effect by tying a 610 Hz sound generator to a 0.9 m long rope, What are the highest and lowest frequencies heard by a student
A field mouse trying to escape a hawk runs east for 6.0m , darts southeast for 3.8m , then drops 1.8m down a hole into its burrow
Two cars start from rest at a red stop light. When the light turns green, both cars accelerate forward. What is the acceleration of the yellow car
In a suspense-thriller movie, two submarines, X and Y, approach each other, traveling at 11 m/s and 20 m/s, How much is the Doppler shift
You select a rental package that includes a car with an average consumption of 6.00 liters of fuel per 100 km. how much (in US dollars) will you spend in fuel on your trip
A person scuffing her feet on a wool rug on a dry day accumulates a net charge of -40?C. By how much does her mass increase
A charge of 2.05mC is placed at each corner of a square 0.160m on a side. Determine the magnitude of the force on each charge
e drives 100 mi to Grandmother's house. On the way to Grandmother's, Julie drives half thedistance at 41.0mph, What is her average speed on the return trip
Suppose the speeder is traveling with a constant speed of 25m/s , and that the maximum acceleration of the police car is 3.1m/s2. find the maximum head-start distance the speeder can have
The position of a particle moving along the x axis depends on the time according to x=ct^2-bt^3, what distance does the particle move and what is its displacement
An element in its solid phase has mass density 2100kg/m3 and number density 4.39×1028atoms/m3. What is the element's atomic mass number
Two trains, each having a speed of s, are headed at each other on the same straight track. what is the total distance the bird travels
An electric vehicle starts from rest and accelerates at a rate a1 in a straight line until it reaches a speed of v. How much time elapses from start to stop
Runner A is initially 4.0mi west of a flagpole and is running with a constant velocity of 2.0 mi/h due east. How far are the runners from the pole when they meet
At 26.0 m below the surface of the sea (density = 1 025 kg/m3), where the temperature is 5.00°C, what is the volume of the bubble just before it breaks the surface
It is believed that a large electric fish known as Torpedo occidentalis uses electricity to shock its victims, What is the total amount of work done during one pulse
what resistance would have to be connected in series with a 3V lamp in a 28 V circuit when the operating current of the lamp is .5 A
A metal sphere hangs from a string and has 4 kg of mass. The sphere has a charge of +2.3 µC. What is the electric force on the metal sphere if the magnitude of the electric field is 106 N/C
A capacitor with air between its plates is charged to 80 V and then disconnected from the battery. What is the dielectric constant of this glass
Imagine that we define the rear end of a train 120 m long to long to define the origin X'=0 in the train frame and we define a certain track signal light to define the origin X=0 in the track frame.
The driver of a truck slams on the brakes when he sees a tree blocking the road. With what speed does the truck then strike the tree
A pair of oppositely charged parallel plates is separated by 5.44 mm. A potential di?erence of 631 V exists between the plates. What is the strength of the electric field between the plates
Two circular disks spaced 0.50mm apart form a parallel-plate capacitor. What are the diameters of the disks