(II) Calculate the true mass (in vacuum) of a piece of aluminum whose apparent mass is 4.0000 kg when weighed in air.

Q: In 1 hour, the air in a certain room is completely replaced 4 times. Whatpercent of the air is…

A: Given ,In an hour or in 60 minutes the air of the room completely replaced 4 times.So, in 1 minute…

Q: (a) Find the average time (in s) required for an oxygen molecule to diffuse through a 0.205 mm thick…

A: (a) The average time required for a molecule to diffuse through a layer can be calculated using…

Q: determine the specific gravitiy of helium by comparing their densities to air at 1.23 kg/m3

A:

Q: Consider a given volume of helium gas at room temperature (20.0 °C). [Molar mass of helium is 4.00 ×…

A: The answers are shown below.Explanation:

Q: Compare the pressure exerted by the tires of your car on the road with the air pressure in the…

A: The pressure of air inside the tires will be same as the pressure exerted by the tire on the road

Q: .43) In Fig. 10-12 are shown four asses that are held at the corners a square by a very light frame.…

A: Answer

Q: What is the mass (in g) of a deep breath of air having a volume of 1.57 L? Discuss the effect taking…

A: Given, the volume of air: V=1,57 L=1.57×10-3 m3 We know that, the density of air: ρair=1.225 kg/m3

Q: (Buoyancy) A hot-air balloon weighs 490 lb, including the weight of the balloon, the basket, and one…

A:

Q: A spherical balloon has a radius of 7.32 m and is filled with helium. How much extra weight could…

A: The radius of the balloon is: The mass of the balloon, Consider the standard values as given below:…

Q: (a) Find the average time (in s) required for an oxygen molecule to diffuse through a 0.195 mm thick…

A:

Q: (a) Calculate the absolute pressure at the bottom of a fresh-water lake at a depth of 28.2 m. Assume…

A:

Q: (a) Find the mass of the gas. |kg (b) Find the gravitational force

A: Given:-  side of the cube = 9.8 cm = 0.098 m  molar mass of the cube = 28.9 g/ mol  P =…

Q: AIR WITH PIPE AT A RATE EMERGES WITH 15 90cm. A DENSITY of 1.23kg m IT A DENSITY OF 1.1kg OF 5m³g-¹.…

A:

Q: A jet of water discharges into an open tank, and water leaves the tank through an orifice in the…

A: We first find the inflow and the outflow rates of the water into and out of the tank. Then we see if…

Q: Viscosity of fluid plays a significant role in the analyses of many fluid dynamics problems. The…

A:

Q: -) Suppose 4 L of gas is undergoing a pressure change from 2 atm to 8 atm. What will be the new…

A:

Q: a uniform beam of weight 1200 N and length is spended hortzontally On the l is hinged to a wall , on…

A: this is simple question  of equilibrium of torque. so for equilibrium  torque must be zero.

Q: One of the unique properties of water is that when it is in the solid state, it's density actually…

A:

Q: When the pioneers where crossing the plains in covered wagons, a metal rim could be attached to a…

A: The change in length due to thermal expansion is calculated by using the formula Lf-L=αLTf-Ti ,…

Q: The middle ear has a volume of about 6.0 cm3 when at a pressure of 1.0 ×10^5 N/m^2. Determine the…

A: The temperature of the air remains constant, hence we will use Boyle's law of gas to solve the…

Q: 49) High line pressure may be produced by O a wide-open throttle. O low intake manifold vacuum. O a…

A: Solution:   As per the above-given statement,

Q: Normal forces of magnitude 3.0 x 10° N are applied uniformly to a spherical surface enclosing a…

A: As per our guidelines we are supposed to answer?️ only one question. Kindly repost other questions…

Q: The gauge pressure in your car tires is 2.25 × 105 Pa at a temperature of 35.0°C when you drive it…

A: Given:at temperature, T1 = 35.0oC = 35.0+273.15 K = 308.15 Kthe pressure is, P1 = 2.25×105 Palater…

Q: A rocket engine shoots exhaust gas at 5.0 EH PA of gas pressure through a nozzle who's area is 0.3 M…

A: