subject

Physics, 29.01.2021 21:50 b2cutie456

A boy is looking into a plane mirror. His nose is 30 cm in front of the mirror. How far is his nose from where its image appears to be?
HELP I NEED TO SUBMIT MY SCIENCE HW IN LIKE 30 MINS!!!

ansver

Answers: 1

Show answers

Another question on Physics

question

Physics, 22.06.2019 10:00

(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present

Answers: 3

question

Physics, 22.06.2019 17:20

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.

Answers: 1

question

Physics, 22.06.2019 18:30

Calculate the velocity of a car traveling in a straight path due east with a distance of 16 meters in 2 seconds. question 1 options: a)32 m/s b)32 m/s e c) 8 m/s e d) 8 m/s

Answers: 2

question

Physics, 22.06.2019 20:10

Two cannon balls weighing 18 kg and 24 kg are chained together and fired horizontally with a velocity of 165 m/s from the top of a 21-m wall. the chain breaks during the flight of the cannonballs and the 18-kg cannonball strikes the ground at t = 1.5 s, at a distance of 240 m from the foot of the wall, and 7 m to the right of the line of fire. determine the position of the other cannonball at that instant. neglect the resistance of the air.

Answers: 1

You know the right answer?

A boy is looking into a plane mirror. His nose is 30 cm in front of the mirror. How far is his nose...

Questions

question

Chemistry, 14.09.2019 00:20

Calculate the steady-state temperature distribution in a long cylindrical rod of the conductivity k and radius r. cooling fluid at a temperature of t...

question

Chemistry, 14.09.2019 00:20

Consider the flowsheet for the manufacture of vinyl chloride in figure 2.6. (hint: this is third synthesis method on page 24, and figure 2.16 and tab...

question

Chemistry, 14.09.2019 00:20

Asample of coal has the following analysis (wt %). moisture 1.1%, fixed carbon 74%, volatile matter 17.9%, carbon 63.7%, hydrogen 3.3%, nitrogen 1.7%,...

question

History, 14.09.2019 00:20

Why was it important to say that “all men” were "created equal"? choose the best answer....

question

Engineering, 14.09.2019 00:20

List some of the performance requirements for a bottle opener....

question

Engineering, 14.09.2019 00:20

In addition to the shaping requirement, what additional reason might you have for excluding the glass rod from consideration?...

question

Engineering, 14.09.2019 00:20

For this particular design scenario, one consideration is that a shaping operation of some type must be applied to the straight rods in order to make...

question

Engineering, 14.09.2019 00:20

Agas turbine receives a mixture having the following molar analysis: 10% co2, 19% h2o, 71% n2 at 720 k, 0.35 mpa and a volumetric flow rate of 3.2 m3...

question

Engineering, 14.09.2019 00:20

A(100) silicon wafer is 700 um thick. a rectangular mask with unknown size is used to pattern the wafer before through-wafer etch. the sides of the ma...

question

Engineering, 14.09.2019 00:20

An ideal vapor compression refrigeration cycle that uses refrigerant-134a as its working fluid maintains a condenser at 1000 kpa and the evaporator at...

question

Engineering, 14.09.2019 00:20

Arefrigerator uses refrigerant-134a as the working fluid and operates on an ideal vapor-compression refrigeration cycle between 0.12 and 0.7 mpa. the...

question

Engineering, 14.09.2019 00:20

A250mm wide and 25mm thick plate is to be reduced in a single pass in a 2-high rolling mill to final thickness of 20mm. the roll has a radius of 250mm...

question

Engineering, 14.09.2019 00:20

(a) calculate the ratio of the maximum radial stresses at the edge and centre of a flat circular steel plate clamped at its periphery and subjected to...

question

Engineering, 14.09.2019 00:20

Acircular thin steel diaphragm having an effective diameter of 200 mm is clamped around its periphery and is subjected to a uniform gas pressure of 18...

question

Engineering, 14.09.2019 00:20

What other material properties should be considered for this application, and which of the provided materials would be suitable candidates for conside...

question

Engineering, 14.09.2019 00:20

An ideal vapor compression refrigeration cycle operates at steady state with refrigerant 134a as the working fluid. saturated vapor enters the compres...

question

Engineering, 14.09.2019 00:20

Determine the specific volume of superheated water vapor at 15 mpa and 1000c, using (a) the ideal-gas equation, and (b) the steam tables....

question

Engineering, 14.09.2019 00:20

Two litres of hot liquid at 80°c are poured into a container of mass 0.8 kg, which is at 15°c. determine the equilibrium temperature if no external he...

question

Engineering, 14.09.2019 00:20

Find the value of h for refrigerant-134a when p = 0.30 mpa and s = 1.0023. h = kj/kg....

question

Engineering, 14.09.2019 00:20

Awindow air conditioner unit is placed on a laboratory bench and tested in cooling mode using 750 w of electric power with a cop of 1.75. what is the...

More questions: Physics Another questions

Questions on the website: 13722363