The truck in that example is traveling at 33 m/s. The density of air is 1.19...
The truck in that example is traveling at 33 m/s. The density of air is 1.19 kg/m3. By how much does the pressure inside the cargo area beneath the tarpaulin exceed the outside pressure?
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The truck in that example is traveling at 33 m/s. The density of
air is 1.19...
1.A pickup truck is traveling down the highway at a steady speed of 31.1 m/s. The...
1.A pickup truck is traveling down the highway at a steady speed of 31.1 m/s. The truck has a drag coefficient of 0.45 and a cross-sectional area of the truck is 3.3 3.3 m2. Assume the density of the air is 1.2 1.2 kg/m3. How much energy does the truck lose to air resistance per hour? Give your answer in units of MJ (megajoules). 2.An unknown object is placed inside of a spherical container and dropped from an airplane. When...
A U-tube contains liquid of unknown density. An oil of density 770 kg/m³ is poured into...
A U-tube contains liquid of unknown density. An oil of density
770 kg/m³ is poured into one arm of the tube until the oil column
is 13.5 cm high. The oil-air interface is then 4.5 cm above the
liquid level in the other arm of the U-tube. Find the density of
the liquid.
A raft is made of 11 logs lashed together. Each is 38.0 cm in
diameter and has a length of 7.00 m. How many people (whole number)...
The density of air at standard temperature and pressure (STP) is 1.20 kg/m3. If the density...
The density of air at standard temperature and pressure (STP) is 1.20 kg/m3. If the density of helium is 0.179 kg/m3 inside a perfectly spherical balloon of radius 5.00 m, how much mass, in kg, could this balloon carry?
Constants Part A A 23000 kg subway train initially traveling at 14.5 m/s slows to a...
Constants Part A A 23000 kg subway train initially traveling at 14.5 m/s slows to a stop in a station and then stays there long enough for its brakes to cool. The station's dimensions are 65.0 m long by 20.0 m wide by 12.0 m high. Assuming all the work done by the brakes in stopping the train is transferred as heat uniformly to all the air in the station, by how much does the air temperature in the station...
A spherically shaped balloon has a radius of 10.5 m, and is filled with helium. How...
A spherically shaped balloon has a radius of 10.5 m, and is filled with helium. How much extra mass can a cargo lift, assuming that the skin and the cargo of the balloon have a mass of 1200 kg? Neglect the buoyant force on the cargo volume itself.(The density of air is 1.29 kg/m3 and the density of helium is 0.179 kg/m3).
A spherically shaped balloon has a radius of 13 m, and is filled with helium. How...
A spherically shaped balloon has a radius of 13 m, and is filled with helium. How much extra mass can a cargo lift, assuming that the skin and the cargo of the balloon have a mass of 1000 kg? Neglect the buoyant force on the cargo volume itself.(The density of air is 1.29 kg/m3 and the density of helium is 0.179 kg/m3)
A pickup truck is traveling down the road with a momentum of 5.1x104 kg m/s (the...
A pickup truck is traveling down the road with a momentum of 5.1x104 kg m/s (the pickup truck is moving at 50 mph), that is measured with an uncertainty of ± 500 kg m/s. . How precisely can its position be determined at the same time?
1. A 10,000 KG truck is traveling at +20 m/s. What would happen to the momentum...
1. A 10,000 KG truck is traveling at +20 m/s. What would
happen to the momentum of the truck if it increases in velocity in
the same direction?
2. A 120 KG rugby player is running toward another player at 5
m/s. How much force needs to be applied over one second in order to
bring him to a stop?
3. if the acceleration of an object decreases, what happens to
the inertia?
A 10,000kg truck is traveling at +20m/s....
The driver of a 1.19 103 kg car traveling on the interstate at 35.0 m/s (nearly...
The driver of a 1.19 103 kg car traveling on the interstate at 35.0 m/s (nearly 80.0 mph) slams on his brakes to avoid hitting a second vehicle in front of him, which had come to rest because of congestion ahead. After the brakes are applied, a constant kinetic friction force of magnitude 7.96 103 N acts on the car. Ignore air resistance. (a) At what minimum distance should the brakes be applied to avoid a collision with the other...
A hot air balloon starts to take off when the temperature inside the balloon is 111...
A hot air balloon starts to take off when the temperature inside the balloon is 111 °C higher than the outside air. The pressure is the same inside and outside the balloon and there is a total of 2.50× 105 moles of air in the balloon. Assuming that the air density outside of the balloon is 1.20 kg/m3, what is the total mass of the balloon and its load? The answer is 2.73 × 103 kg. I am not sure...
A U-tube contains liquid of unknown density. An oil of density
770 kg/m³ is poured into one arm of the tube until the oil column
is 13.5 cm high. The oil-air interface is then 4.5 cm above the
liquid level in the other arm of the U-tube. Find the density of
the liquid.
A raft is made of 11 logs lashed together. Each is 38.0 cm in
diameter and has a length of 7.00 m. How many people (whole number)...
Constants Part A A 23000 kg subway train initially traveling at 14.5 m/s slows to a stop in a station and then stays there long enough for its brakes to cool. The station's dimensions are 65.0 m long by 20.0 m wide by 12.0 m high. Assuming all the work done by the brakes in stopping the train is transferred as heat uniformly to all the air in the station, by how much does the air temperature in the station...
1. A 10,000 KG truck is traveling at +20 m/s. What would
happen to the momentum of the truck if it increases in velocity in
the same direction?
2. A 120 KG rugby player is running toward another player at 5
m/s. How much force needs to be applied over one second in order to
bring him to a stop?
3. if the acceleration of an object decreases, what happens to
the inertia?
A 10,000kg truck is traveling at +20m/s....
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