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Two bumper cars collide head on. Before the collision, car 1 is coming from the right at 3m/s and has a total mass of 200kg. Car 2 is coming from the left at 5m/s and has a total mass 250kg (the driver of car 2 is a lot fatter than the driver of car 1). At the time of the collision, the bumpers lock and the cars remain stuck together after the (inelastic) collision. Calculate the velocity (direction and speed) of the linked cars following the collision.
What minimum heat is needed to bring 138g water at 22°C to the boiling point and completely boil it away.
0.17 mol of argon gas is admitted to an evacuated 54.83 cm3 container at 27°C. What is the final volume of the gas
an object with a mass of 5 kg hangs from a cordstring around a light pulley. the length of cord is 2 meters long that
A rocket is fired at a speed of 82.0 m/s from ground level, at an angle of 31.0 ° above the horizontal. find By how much does the rocket clear the top of the wall
A very long solenoid of circular cross section with radius r= 4.20cm has n= 90.0 turns/cm of wire. What is the magnitude of the force on the electron
A bullet of mass 7.00g is fired horizontally into a wooden block of mass 1.29kg resting on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.250. The bullet remains embedded in the block, which is observed to..
a car at the indianapolis-500 accelerates uniformly from the pit area going from rest to 290 kmh in a semicircular arc
A wave with a frequency of 1200 Hz propagates along a wire that is under a tension of 800 N. What will be the wavelength if the tension is decreased to 600 N and the frequency is kept constant
The chemical atomic mass of hydrogen, with the two stable isotopes 1H and 2H (deuterium), is 1.00798. Use m(H1) = 1.007825 u, determine the natural abundance of 2H isotope
A physics demo launches a ball horizontally while dropping a second ball vertically at exactly the same time. Which ball hits the ground first? and why
a point charge causes an electric flux of -390nmiddotm2c to pass through a spherical gaussian surface of 25.0 cm radius
A carbon steel piano wire 1.4 m long with a cross-sectional area of 2 × 10?6 m2 and mass 0.1 kg is stretched 23 mm. Determine the speed of transverse waves on the string. For carbon steel, Young’s modulus is 2 × 1011 N/m2.
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