1. a car with a mass of 1,500 kilograms is moving around a circular curve at a uniform velocity of 16 m/s. the curve has a radius of 100 meters. what's the centripetal force on the car? 2. a car with a mass of 1,200 kg is moving around a circular curve at a uniform velocity of 20 m/s. the centripetal force on the car is 6,000 n. what's the radius of the curve? write your answers using 1–2 paragraphs. 3. describe the universal gravitational law. 4. evaluate the techniques and models used by ptolemy and copernicus to explain the setup of the universe.

Give your knowledge of these things in your paper, you will compare and contrast analog and digital signals to determine which is more reliable for encoding and transmitting information. you’ll compare these features: signal shape numerical values for signal measurements amount of data that can be transmitted energy requirements privacy and security (ability of the signal to be encoded in a secret code) clarity of signal in the space provided, write down what you already know about any of these features. if you’re not sure, write down questions you might have about the features.