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Two cars collide at an icy intersection and stick together afterward. The first car has a mass of1350kg and was approaching at4.00m/sdue south. The second car has a mass of900kgand was approaching at16.0m/sdue west. Calculate the final velocity (magnitude in m/s and direction in degrees counterclockwise from the west) of the cars. (Note that since both cars have an initial velocity, you cannot use the equations for conservation of momentum along the x-axis and y-axis; instead, you must look for other simplifying aspects.) How much kinetic energy (in J) is lost in the collision? (This energy goes into deformation of the cars.)
As a 5-kg block travels around a 0.6-m radius circle it has an angular speed of 14 rad/s. find The magnitude of its angular momentum around the origin
A transport plane flies horizontally with a fix velocity of160 m/s, at a height of 2000 m. Find how far ahead of the marker does the tank hit the ground
An ice chest at a beach party contains 15 cans of soda at 5°C. Each can of soda has a mass of 0.36 kg and a specific heat capacity of 3600 J/(kg·°C). Someone adds a 6.2 kg watermelon at 28°C to the chest. The specific heat capacity of watermelon is n..
The trap-jaw ant can snap its mandibles shut in as little as 1.1 x 10-4 second. Find the average angular velocity of one of the mandibles of the trap-jaw ant when the mandibles snap shut
Two tiny conducting spheres are identical and carry charges of -29.7C and +46.6C. They are separated by a distance of 3.61 cm. what is the magnitude of the force that each sphere experiences?
A resting adult of average size converts chemical energy infood into internal energy at the rate of 120 W, called herbasal metabolic rate. Calculate the rate at which you lose energy by exhaling humid air
a copper crystal has a homogeneous dislocation density of 1010 m-2. what is the approximate elastic strain energy of a
Suppose your weight has been constant, but then - after being introduced to really good chocolate - you start eating 100 extra food calories (recall, 1 food calorie is really 1kcal or 1000 calories of energy) every day without otherwise adjusting ..
A ceiling fan is rotating at 0.96 rev/s. When turned off, its lows uniformly to a stop in 2.4 minute. Find how many revolutions does the fan make in this time
a roller coaster is initially at a height of 40 m above the ground and has an initial velocity of 15 ms. using
A 1.50 kg glider, attached to the end of an ideal spring with force constant k = 300 N/m, Compute the total mechanical energy of the glider
The potential difference across a resting neuron in the human body is about 105.0 mV, How much power does the neuron release
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