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Hi, help with this problem in physics. The de Broglie wavelength of a car is 1.0 * 10^3 kg traveling at 75 km/hr is how many meters? What 2 numbers add to make 55 and multiply to make -56? Discrete mathematics plz answer in detailed thank u? This object is at 4.2 units left of origin at t=5s, where is approximately at t=5.2s Velocity: (2t-5)/(t) for any t >= 1 second.? 2+2=equal how many?