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An sub with a mass of 1800 kg is traveling eastbound at 17 m/swhile a compact car with mass of 900 kg is traveling westbound witha speed of 15 m/s the cars collide head-on becoming entangled.Find the speed of the entangled cars after the collisionFind the change invelocity of each carFind the change in thekinetic energy of the system consisting of both cars.
A 0.6410-kg ice cube at -12.40°C is placed inside a chamber of steam at 365.0°C. calculate the final temperature of the puddle
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
Four identical metallic objects carry the following charges: +1.68, +6.03, -4.64, and -9.66C. How many electrons (or protons) make up the final charge on each object
Two vectors of magnitude 22.6 N and 24.5 N act at right angles to each other. What is the magnitude of their resultant vector
Using the medium p model of the line, Find the current, voltage, reactive power, real power, & power factor at the sending end of the line.
A 1037 kg satellite orbits the Earth at a constant altitude of 108 km. How much energy must be added to the system to move the satellite
A refrigerator uses an ideal Carnot cycle to cool its interior. The outside air has a temperature of 304 K, What is the coefficient of performance of this refrigerator
An elevator is rising at a constant speed, subject only to the tension (T) and gravitational (W) forces exerted on it by the cable above and the Earth below. As it rises, which force (if either) has a greater magnitude, T or W? Explain.
A 7.11-kg box is sliding across the horizontal floor of an elevator. find the kinetic frictional force that acts on the box
a uniform rod of mass 2m is completely free to move and is initially at rest. a particle of mass m hits one of its ends
An instructor wants to use a lens to project the real image of a light bulb onto a screen 1.23 m from the bulb. In order to get the image to be two times as large as bulb, what focal length lens will be required.
Two equally charged, 1.00 {rm g} spheres are placed with 2.00 {rm cm} between their centers. When released, each begins to accelerate at 225 {rm m/s^2}. What is the magnitude of the charge on each sphere.
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