Find at what time is the water mass greatest

Assignment Help Physics
Reference no: EM13523859

Water is poured into a container that has a leak. The mass m of the water is given as a function of time t by m = 4.5t0.8 - 3.3t + 21, with t ? 0, m in grams, and t in seconds.

(a) At what time is the water mass greatest, and

(b) what is that greatest mass?

In kilograms per minute, what is the rate of mass change at

(c) t = 2.4 s and

d) t = 5.5 s?

Reference no: EM13523859

Questions Cloud

Evaluate accounts receivable internal control : Evaluate accounts receivable internal control and conclude the IC risk as being low. Also, you have estimated inherent risk low. The total balance in AR is relatively low.
Define how to calculate the molar concentration : A 25.0-mL sample of potassium chloride solution was found to have a mass of 25.115g. When the solution was heated to dryness, the mass of the solute residue was 0.252g. Calculate the (a)mass/mass % concentration and (b) molar concentration.
Find magnitude of electrostatic force that acts each sphere : Two very small spheres are initially neutral and separated by a distance of 0.66 m. What is the magnitude of the electrostatic force that acts on each sphere
Describe a hypothetical lake has a surface area of 23 acres : A hypothetical lake has a surface area of 23 acres and an avgage depth of 20 ft. Recently there was an accident where a truck spilled 9,000 gals of concentrated H2SO4 (18M) directly into the lake.
Find at what time is the water mass greatest : Water is poured into a container that has a leak. The mass m of the water is given as a function of time t by m = 4.5t0.8 - 3.3t + 21, with t ? 0, m in grams, At what time is the water mass greatest
Explain what will be the concentration of ca2+ ion : Solid CaF2 is shaken with a 0.010M solution of NaF. What will be the concentration of Ca2+ ion in the resultant saturated solution? (Ksp for CaF2 = 4.0 x 10-11)
Find what is the mass of the mud : During heavy rain, a section of a mountainside measuring 5.1 km horizontally, 0.78 km up along the slope, and 0.95 m deep slips into a valley in a mud slide. What is the mass of the mud sitting above a 3.6 m2 area of the valley floor
Explain restricted rotation about the carbon-nitrogen bond : It is known that the peptide linkage in proteins and peptides is planar and restricted rotation about the carbon-nitrogen bond.
Explain why is the normal boiling point of hydrogen fluoride : Why is the normal boiling point of hydrogen fluoride is so much higher than that of hydrogen chloride, the hydride of the next element in group VIIA

Reviews

Write a Review

Physics Questions & Answers

  Calculate the speed of train

An alert physics student stands beside the tracks as a train rolls slowly past. He notes that the frequency of the train whistle is 443 Hz when the train is approaching him.

  What point between the two wires are the contributions

If the mass of both weights is 225 gm, the first mass is located 20 north of east, the second mass is placed 20 south of east, and the transducer sensitivity is 0.5 volts/Newton, how large a voltage do you expect to measure? suppose the transducer..

  Find this common time constant

An RL circuit with L = 1.00 H and an RC circuit with C = 4.00 µF have the same time constant. What is this common time constant

  Find the cars speed after the loading is completed

An open train car, with a mass of 2210 kg, coasts along a horizontal track at the speed 2.47 m/s. What is the car's speed after the loading is completed

  Distance between the centers of the two slits

What is the distance between the centers of the two slits? Describe answer in m.

  Explain how fast is the person running

While running, a person dissipates about 0.524 J of mechanical energy per step per kilogram of body mass. If a 65.5 kg person dissipates a power of 76.6 W during a race, explain how fast is the person running?

  Find coefficient of kinetic friction between him and ground

A Baseball player rounds third base and is heading for home when he is signalled by the base coach to slide. find the coefficient of kinetic friction between him and the ground

  Calculate the ratio of densities

Before landing astronauts on the moon, the Apollo 11 space vehicle was put into orbit around the moon. Calculate the ratio of densities (moon to earth)

  Q1 as part of a safety investigation two 1300kg cars

q1. as part of a safety investigation two 1300kg cars traveling at 18ms are crashed into different barriers. find the

  How much sound energy comes through the window in one hour

Sound is passing perpendicularly through an open window whose dimensions are 1.1 m x 0.75 m. How much sound energy comes through the window in one hour

  Compute the angular speed of the rod after rings leave it

A uniform rod of mass 3.05×10^-2?2kg and length 0.370m rotates in a horizontal plane about a fixed axis through its center, compute the angular speed of the rod after the rings leave it

  Find the intensity of the light you see

You look through a Polaroid sheet at a 75 W light bulb 3.00 m away. Find the intensity of the light you see

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd