How much energy is consumed by dissipative forces

Reference no: EM1310327

Q1. Lamborghini states that its 2004 Murciélago® has a mass of 1670 kg. On a particular test run, its 580 hp (433 kW) engine accelerates the car from 0 to 100 km/h (62 mph) in 3.40 seconds. Suppose the engine is working at its maximum power. How much energy is consumed by dissipative forces like air resistance and friction as the car accelerates from 0 to 100 km/h?

Q2. A 2.10 sound wave travels through a pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward sound receiver as the heart beats. The reflected sound is then mixed with the transmitted sound, and 60 beats per second are detected. The speed of sound in body tissue is 1460.

Reference no: EM1310327

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