Gregory Emery
2022-01-10
Answered

Which of the following are Arrhenius acids? $\left(a\right){H}_{2}O,\left(b\right)Ca{\left(OH\right)}_{2},\left(c\right){H}_{3}P{O}_{4},\left(d\right)HI$

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encolatgehu

Answered 2022-01-11
Author has **27** answers

We get result where

asked 2020-12-24

Water stands at a depth H in a large, open tank whose sidewalls are vertical. A hole is made in one of the walls at a depth h below the water surface.

a) at what distance R from the foot of the wall does the emerging stream strike the floor?

b) How far above the bottom of the tank could a second hole be cut so that the stream emerging from it could have the same range as for the first hole?

a) at what distance R from the foot of the wall does the emerging stream strike the floor?

b) How far above the bottom of the tank could a second hole be cut so that the stream emerging from it could have the same range as for the first hole?

asked 2021-04-06

Assign a binary code in some orderly manner to the 52 playingcards. Use the minimum number of bits.

asked 2020-12-28

Two blocks with masses 4.00 kg and 8.00 kg are connected by string and slide down a 30.0 degree inclined plane. The coefficient of kinetic friction between the 4.00-kg block and the plane is 0.25; that between the 8.00-kg block and the plane is 0.35.

a) Calculate the acceleration of each block

b) Calculate the tension in the string

c) What happens if the positions of the block are reversed, so that the 4.00-kg block is above the 8.00-kg block?

asked 2021-02-15

(a) How far from a 50.0-mm-focal-length lens must an object be placed if its image is to be magnified 2.00 X and be real?

(b) What if the image is to be virtual and magnified 2.00 X?

(b) What if the image is to be virtual and magnified 2.00 X?

asked 2022-01-11

A point charge of magnitude qq is at the center of a cube with sides of length L. What is the electric flux $\mathrm{\Phi}$ through each of the six faces of the cube? What would be the flux $\mathrm{\Phi}}_{1$ through a face of the cube if its sides were of length $L}_{1$ ?

asked 2022-01-07

How many ways are there for a horse race with four horses to finish if ties are possible? [Note: Any number of the four horses may tie.)

asked 2021-02-09

The average thermal conductivity of the walls (includingwindows) and roof of a house in Figure P11.32 is 4.8