Arianne

A hypodermic needle is 1.5 cm long and has an inner radius of 0.016cm. What excess pressure is required along the needle so that the flow rate of water though it is 0.0013 kg/s? Use ç = 1.0 x 10-3 Ns/m2 for water. the answet i have found is deltaP=758017...

An object mass 1,448 g is attached to a spring with spring constant k = 815 N/m. The object is then displaced by a distance d from the equilibrium position and is released. Shortly after, it passes with speed v = 6.4 m/s through the equilibrium position....

Two small metal spheres with masses 2.0 g and 4.0 g are tied together by a 5.0 cm long massless string and are at rest on a frictionless surface. Each is charged to +2.0 ìC. (b) What is the tension in the string? (c) The string is cut. What is the speed o...

Assume the distance axis is linear and da = 10.0m and db = 35.0 m. Estimate the work done by a force F in moving a 2.80 kg object from da to db.

Based on the excerpt how does this newspaper article compare to the yellow journalism articles written about the explosion of the battleship Maine in 1898? A.This article is more biased than the yellow journalism articles B.This article is less biased tha...

write a paragraph describing how the us government managed the economy during world war I and the economic effects of the management consider the roles played by the food administration the war industries board (wib) and the war labor board. Can someone h...

1.What was North Korea’s response to President George W. Bush’s 2001 threat to stop negotiations? A. North Korea immediately gave in to his list of conditions. B. North Korea resumed its nuclear program. C. North Korea sought the help of the United Nation...

You place a bet on the number 21 in roulette. The probability of winning is 1 38 , and the company hosting the casino night for a city fundraiser gives the payoff odds as 35:1. What are the odds that the ball will land on the number 21? 1:37 1:38 1:35 1:2...

1-A matching card game contains 48 cards. Each card shows a piece of fruit, and there are 8 cards of each fruit in the deck. What is the probability of randomly selecting a picture of a banana? 6 1 1 8 5 6 1 6 2.A standard deck of 52 cards contains 4 aces...

If a step-up transformer has a primary coil with 40 turns, how many turns would be required in the secondary coil in order to increase the voltage from 80 volts to 160 volts?

1.How much heat is absorbed by a 63g iron skillet when its temperature rises from 12oC to 30oC? 2.How much heat is needed to raise the temperature of 5g of water by 15oC?

They had more time for leisure activities.

1.D 2.b 3. 4. ????

1.D 2.A 3.A 4.c ????

1:38 ???

thanks

2.b 4.d

1. 1 8 2. 1 13 ???

Thanks!

And for the second one?

I don't understand can someone explain is the answer 240 or 2??