A 1200 kg car traveling at 60 mph quickly brakes to a halt. The kinetic energy...
A 1200 kg car traveling at 60 mph quickly brakes to a halt. The kinetic energy of the car is converted to thermal energy of the disk brakes. The brake disks (one per wheel) are iron disks with a mass of 4.0 kg.
Estimate the temperature rise in each disk as the car stops.
Express your answer using two significant figures.
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A 1200 kg car traveling at 60 mph quickly brakes to a halt. The
kinetic energy...
When a driver brakes an automobile, friction between the brake disks and the brake pads converts...
When a driver brakes an automobile, friction between the brake disks and the brake pads converts part of the car's translational kinetic energy to internal energy. If a 1260 kg automobile traveling at 30.8 m/s comes to a halt after its brakes are applied, how much can the temperature rise in each of the four 3.5 kg steel brake disks? Assume the disks are made of iron (cp = 448 J/kg·°C) and that all of the kinetic energy is distributed...
A car that weighs 2200 kg traveling at 55 mph comes to a stop. If the...
A car that weighs 2200 kg traveling at 55 mph comes to a stop. If the brake discs (pads) are 20 lbs in mass and made of iron, what is the temperature of the brakes after you come to a quick stop (assume you have four equivalent brake pads)?
A 2500 kg car is traveling 25 m/s and brakes to a stop. This causes the...
A 2500 kg car is traveling 25 m/s and brakes to a stop. This causes the brakes to heat up as the car’s kinetic energy is converted to thermal energy. If the heat in the brakes could be captured and applied to ice at 0 degrees Celsius, how much could it melt?
A 1500 kg car traveling at a speed of 10 m/sskids to a halt on wet...
A 1500 kg car traveling at a speed of 10 m/sskids to a halt on wet concrete where μk = 0.60. How long are the skid marks? Express your answer using two significant figures. L=...
Assume that the kinetic energy of a 1000 kg car moving at 125 km/h could be...
Assume that the kinetic energy of a 1000 kg car moving at 125 km/h could be converted entirely into heat.What amount of water could be heated from 16 ∘C to 52 ∘C by the car's energy? Express your answer using two significant figures.
How much work must be done to stop a 1200-kg car traveling at 90 km/h ?...
How much work must be done to stop a 1200-kg car traveling at 90 km/h ? Express your answer to two significant figures and include the appropriate units.
A 1200-kg car is moving at 16.0 m/s due north. A 1500-kg car is moving at...
A 1200-kg car is moving at 16.0 m/s due north. A 1500-kg car is moving at 20.0 m/s due east. The two cars simultaneously approach an icy intersection where, with no brakes or steering, they collide and stick together. 1) Determine the speed of the combined two-car wreck immediately after the collision. (Express your answer to two significant figures.) m/sm/s 2) Determine the direction of the combined two-car wreck immediately after the collision. (Express your answer to two significant figures.)
Part A How much work must be done to stop a 1200-kg car traveling at 110...
Part A How much work must be done to stop a 1200-kg car traveling at 110 km/h?. Express your answer to two significant figures and include the appropriate units. ЦА ? W = 560.35 KJ Submit Previous Answers Request Answer
A 1,210 kg car going 32 m/s is brought to a stop using its brakes. Let's...
A 1,210 kg car going 32 m/s is brought to a stop using its brakes. Let's assume that a total of approximately 28 kg of iron in the brakes and wheels absorbs the heat produced by the friction. (a)What was the car's original kinetic energy (in J)? ________J (b)After the car has stopped, what is the change in temperature (in °C) of the brakes and wheels? ________ °C
Calculate the kinetic energy (in kJ) of a 3000 kg car that is traveling at a...
Calculate the kinetic energy (in kJ) of a 3000 kg car that is traveling at a speed of 53 km/hr.
Part A How much work must be done to stop a 1200-kg car traveling at 110 km/h?. Express your answer to two significant figures and include the appropriate units. ЦА ? W = 560.35 KJ Submit Previous Answers Request Answer
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