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A 1400kg sedan goes through a wide intersection traveling from north to south when it is hit by a 2400kg SUV traveling from east to west. The two cars become enmeshed due to the impact and slide as one thereafter. On-the-scene measurements show that the coefficient of kinetic friction between the tires of these cars and the pavement is 0.750, and the cars slide to a halt at a point 5.51m west and 6.19m south of the impact point.
a) How fast was sedan traveling just before the collision?
b) How fast was SUV traveling just before the collision?
A construction company is trying to select a concrete brand for laying down a foundation. Which brand of concrete can withstand the higher stress level
As a bar magnet moves toward a 150-turn coil, the magnetic field (which is perpendicular to the plane of the coil) changes from 0.25 T to 0.53 T in 0.3 s. what is the magnitude of the induced current in the coil
To save on heating costs, the owner of a green house keeps 680 kg of water around in barrels. What is the minimum ampere rating of an electric heating system (240 V) that would provide the same heating effect as the water does
When people sleep, their metabolic rate is about 2.6 10-4 C/(s • kg). How many Calories does an 83 kg person metabolize though getting a good night's sleep of 9.0 hours.
0.023mol of a diatomic gas, with initial temperature 25?C, How much heat is added during this process
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8 multiplied by 1011 solar masses. What should the orbital period of that star be
A 45 dB sound wave strikes an eardrum whose area is 4.1 × 10-5 m2. How much energy is received by the eardrum per second
A car traveling on a flat (unbanked), circular track accelerates uniformly from rest with a tangential acceleration of a. determine the coefficient of static friction between the car and the track
a. calculte the potential difference between the conductors if they are sperated by a distance of 2m (use x=0 as the v=0 reference point.) b. how much energy is gained by a 20uc charge
assume you are standing on a train, both feet together, facing a window. The front of the train is to your left. The train starts moving forward.
A 4.98-kg pendulum bob, at a height of 0.720 m above the floor, is released and swings down to the ground, Find how high up the incline the block will slide
A certain lens focuses light from an object 1.25maway as an image 41.8cm on the other side of the lens. What type of lens is it
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