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A 30,000-kg truck travelling at 10.0m/s collides with a 1700-kg car travelling at 25m/s in the opposite direction. If they stick together after the collision, how fast and in what direction will th
What focal -length eyepiece is needed if your eye can resolution objects 0.10mm apart at a distance of 25cm? What is the resolution limit (radians) set by the size of the objective lens (that is bi
An anti node is located at point A. In the time interval that point takes to move from maximum upward displacement to maximum downward displacement, how far does each wave move along the string?
Express the monthly cost C as a function of the distance driven d, assuming that a linear relationship gives a suitable model. Use part (a) to predict the cost of driving 1500 miles per month. Draw th
If the image of the truck is approaching the vertex of the mirror at a speed of 1.5mn/s when the truck is 2.0 m away, what is the speed of the truck relative to the highway?
A second converging lens with the same focal length is placed 3.15 m to the right of the first. Find the position and size of the final image. Is the final image erect or inverted with respect to th
Find the total resistance of the rod and the current in the rod. Find the electric-field magnitude E(x) in the rod as a function of x.
An electron with a speed of 5.00 x 108cm/s enters an electric field of magnitude 1.00 x 103N/C, traveling along a field line in the direction that retards its motion.
The propeller provides the propulsion force F winch gives the tugboat forward motion, whereas the barge moves freely. Also, determine F acting on the tugboat. The barge has a mass of 75 mg.
In the absence of the lens, an image of a distant object (formed by refraction at the cornea) falls 2.53 cm behind the retina. The lens is designed to put the image of the distant object on the reti
An 1150-kg car pulls a 450-kg trailer. The car exerts a horizontal force of 3.8 x 103 N against the ground in order to accelerate. What force does the car exert on the trailer? Assume an effective f
In electron-volts, how much work does an ideal battery with a 12.0 V emf do on an electron that passes through the battery from the positive to the negative terminal?
At a local community college, it costs $350 to enroll in a morning section of an algebra course. Suppose that the variable n stands for the number of students who enroll. Then 350n stands for the to
A chain of mass m forming a circle of radius R is slipped on a smooth round cone with half-angle θ. Find the tension of the chain if it rotates with a constant angular velocity ω about
What boundary conditions must be satisfied by the resonant wavelengths? How does a crack in the bell, such as in the Liberty Bell, affect the satisfying of the boundary conditions and the sound eman
What's the eagle s speed just after grasping the rabbit? What percent of her kinetic energy is lost during the process? What would be the eagle s final speed if the rabbit were initially running towar
Argue for or against the idea that vd is equal to the instantaneous velocity of the glider when it is halfway through the photo gate in space.
You are now operating a Carnot engine at 40% efficiency, which exhausts heat into a heat sink at 298 K. If you want to increase the efficiency of the engine to 65%, to what temperature would you ha
Batteries are rated in terms of ampere-hours (A · h). For example, a battery that can produce a current of 2.00 A for 3.00 h is rated at 6.00 A · h. What is the total energy, in kilowa
A 0.450-kg ice puck, moving east with a speed of 3.00m/s, has a head-on collision with a 0.900-kg puck initially at rest. Assuming a perfectly elastic collision, what will be the speed direction of
Using the proposed solution for u, find the acceleration a. Find the distance the raindrop has fallen in t = 3.00 s.
What are the differences between esterification and neutralisation?
Propylene oxide is a chiral molecule. Hydrolysis of propylene oxide gives propylene glycol, another chiral molecule. Draw the enantiomers of propylene oxide.
In unit-vector notation, what is the torque about the torque about the origin on a particle located at coordinate (0, -4.0m 3.0m) if that torque is due to
The current in the windings of a toroidal solenoid is 2.400 A. There are 500 turns, and the mean radius is 25.00 cm. The toroidal solenoid is filled with a magnetic material. The magnetic field insi