06/15/23

Viscosity of a liquid
The viscosity of a liquid can also be determined using a so-called capillary viscometer. For this the volume flow ∆V/∆t is measured through a tube with a radius of r = 0.5 mm and a length of s =... more
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06/08/23

Find the work required to pump the water
The tank shown below is full of water. Using the fact that the weight of water is 62.5lb/ft^3, find the work (in ft-lbs) required to pump the water out of the outlet. Make sure your answer is... more
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06/08/23

Physics question
A force F1  of magnitude 7.00 units acts at the origin in a direction 32.0° above the positive x-axis. A second force F2 of magnitude 5.00 units acts at the origin in the direction of the... more
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06/08/23

Velocity of a flowing liquid
Isopropanol with a density of ρ = 781 kgm3 flows uniformly through a tube that increases from a cross-sectional area A1 = 3.8 · 10−3 m2 to a cross-sectional area A2 = 3 A1. The static pressure... more
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06/07/23

Problem 3 algebra help needed

The function y represents the temperature in degrees Fahrenheit ( °F) of a kettle of water that has been on the stove for x minutes. Y=11x+70a)Find and interpret the y intercept of the equation in... more
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06/06/23

5 home decoration magazines and 7 fashion magazines are on a shelf. What is the probability of drawing out one fashion magizine without looking]
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06/06/23

Please Help with this question
A car of mass m follows a truck of mass 2m around a circular turn. Both vehicles move at speed v.I Just need help with question B HINT(a)What is the ratio of the truck's net centripetal force to... more
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06/06/23

Use the figure below to answer and show work.
i. find the x- and y-component of A and Bii. find the A + B (magnitude and direction)iii. Find A - B (magnitude and direction)iv. Find A (dot) B and the angle between the two vectorsv. Find the... more
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06/05/23

algebra help needed

A person invests in an account with intrest compounded continuously according to the formula A=F(T)=1090oe^0.028t where A is the amount in the account and T is in years F(0)=$10,900 , to the... more
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05/31/23

Physics Cable Magnitude
A 520-N uniform rectangular sign 4.00 m wide and 3.00 m high is suspended from a horizontal, 6.00-m-long, uniform, 110-N rod as indicated in the figure below. The left end of the rod is supported... more
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05/28/23

elements of physics 101
On aircraft carriers, catapults are used to accelerate jet aircraft to flight speeds in a short distance. One such catapult takes a 17,500-kg jet from 0 to 67 m/s in 2.9 s. (Assume the catapult... more
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05/27/23

What is n_i, using semiconductor w/ electron and hole carrier mobility?
If a semiconductor has 500(Ω-m)-1, with electron carrier mobility of 1.6 x 10-1 m2/V-s and hole carrier mobility of 7.5 x 10-2 m2/V-s, what is ni?
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05/23/23

Please help! A radioactive substance decays according to the following function, where y0 is the initial amount present, and y is the amount present at time t (in days).
A radioactive substance decays according to the following function, where y0 is the initial amount present, and y is the amount present at time t (in days).y = y0e-0.019tFind the half-life of this... more
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05/23/23

At each corner of a square of side ℓ t..
At each corner of a square of side ℓ there are positive point charges of magnitudes Q1=Q, Q2=8Q, Q3=9Q and Q4=6Q. a.) Determine the magnitude of the force on the charge Q2. b.) Determine the angle... more
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05/21/23

A car is moving across a level highway with a speed of 29.4 m/s. The brakes are applied and the wheels become locked as the 1260-kg car skids to a stop. The braking distance is 135 meters.
a.) What is the initial kinetic energy of the car?b.) What is the final final energy of the car?c.) How much work was done by the brakes to stop the car? d.) Determine the magnitude (enter your... more
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05/21/23

A 90 kg woman jumps from a ledge that is 1.4 m above concrete and prepares to become internet famous.
(a) What is her speed just before her feet strike the pavement?(b) The only cushion for her feet is the 0.50 cm in the pads of her feet. So, she displaces only 0.50 cm during the landing. Calculate... more
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05/21/23

Physics question
A planet emits visible color at 600nm. If the planet is moving away from a stationary observer, which of the following cannot be the wavelength observed?
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05/16/23

Please help in solving this question
A force of 35.0 N is applied in the positive x-direction to a block of mass 7.40 kg, at rest on a frictionless surface.HINT(a)What is the block's acceleration (in m/s2)? (Indicate the direction... more
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05/16/23

Find the value of x and y for which the quadrilateral is a parallelogram. Show your solution and explain. (Need answer today pls)
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05/16/23

Find the value of x and y for which the quadrilateral is a parallelogram. Show your solution and explain. (Need the answers today pls)
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05/15/23

At that point, what is the acceleration?
If st^3-5t^2+5t - 3, when will the velocity be 2 ft/s? At that point, what is the acceleration?
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05/15/23

Where is its positioned when it reached its constant velocity? What is its constant velocity?
A car has a velocity of t^2 - 10t. Where is its positioned when it reached its constant velocity? What is its constant velocity?
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05/13/23

Please help with this question
A celebrated Mark Twain story has motivated contestants in the Calaveras County Jumping Frog Jubilee, where frog jumps as long as 2.20 m have been recorded. If a frog jumps 2.20 m and the launch... more
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05/12/23

A 1.9 kg ball is attached to a ceiling by a string. The distance from the ceiling to the center of the ball is 0.81 m, and the height of the room is 3.00 m.
(a) What is the gravitational potential energy associated with the ball relative to the ceiling?(b) What is the gravitational potential energy associated with the ball relative to the floor?(c)... more
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05/10/23

What am I missing

A movie theater has a seating capacity of 285. The theater charges $5.00 for children, $7.00 for students, and $12.00 for adults. There are half as many adults as there are children. If the total... more
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