a) Calculate the energy needed for this heating process. b) Calculate what volume change the water will undergo in the heating process. Express the volume change in volume in units of both m³ and cm³. c) Calculate the cost of heating this volume of water if you know the cost of electricity is $0.28 per kWh ? What assumption(s) are we making in this calculation e) Based on the calculations in (c) above, approximately how much will a daily hot shower cost you over a month if we assume that you use around half the volume of the cylinder every time you shower? What costs in the heating of your shower water are we ignoring in this case ?

Q: Divide: (6х 109)/ (2х 10) О Зх 103 О Зх 109 О 1.2х 104 О 12х 103

A:

Q: Determine length CE for the similar triangles shown in Figure 1. E 25 m D A 10 m FIGURE 1 B 16 m

A: For similar triangles, corresponding sides are in the same ratio.

Q: 2. The density of cars (in cars per mile) down a 20 mile stretch of the Pennsylvania Turnpike is…

A: Given density of cars (in miles)  And length L=20miles Let's take a small element of length dx at…

Q: Given deta U=2mls =Smis -1o S Find accelencation

A: Given data : Initial velocity=U Final velocity=V Time=t   To find : Acceleration

Q: the answer is 5 sigfigs. what is the correct answer in 3 sig figs?

A: Given  θr = 26.016 °

Q: 3 Given that 1 cm 1 millilitre Convert 508 litres to m3 Answer: 0.508

A: So   1 m3 = 106 cm3  and,  Realtion between liter and millilitre is   1 liter = 103 mili liter

Q: The earth weights about 1e+21 tons. Convert this to gigagrams

A:

Q: What would be the result of 0.000006 74576 using significant figures

A: In the calculation and measurement, the 'significant figures' plays a very important role.  There…

Q: May I request the handwritten copy of this? I dont get how it was calculated.

A:

Q: how is 0.992 the radius?

A: The radius value is already mentioned in the question.

Q: What is the amount of heat you neer to heat 10 liters of water from 10 degrees Celsius to 50 degrees…

A:

Q: If a cheetah covers 150. yards in 50.0 seconds what would the speed be in miles per hour?

A:

Q: In preparation for the exam period, a student bought 7496 bananas for snacking. Express this in…

A: SCIENTIFIC NOTATION                        The scientific notation is defined as method of…

Q: What would be the result of 48978 if you use significant figures

A: To write the given number using significant figures. Given number: 48978

Q: How did they get the equation for a?

A:

Q: You are standing a distance x from a building with height y. If the straight line distance between…

A:

Q: n your point of view , what is the importance of gathered antropometric data? Justify your answer .

A: Anthropometric statistics  are statistics on human body dimension and shape and are the base using…

Q: what is wrong with answer being 672.1

A:

Q: convert 10 millimeters to meters.

A: Given data: 10 millimeters Required: Value in meters

Q: The greater the number of significant figures, the the uncertainty.

A: Definition of uncertainty: Uncertainty means that there is a range of possible values within which…

Q: Need more figures... what is the ful

A: Acceleration time graph is given below:

Q: Which is the most convenient point to calculate the equivalent values?

A:

Q: whats the Et??

A: This problem from the topic of thermodynamics. Please have a good look. Since the machine is…

Q: how did you get the initial equation for v?

A:

Q: what is the reading in the micrometer ?

A: Least count of micrometer : Least count of micrometer=smallest reading of main scaleTotal number of…

Q: How to round off into two  significant figures of 1.(0,00208) 2.(9438) 3.(0.000344)

A:

Q: Princess measure the dimension of the wood work that she is working on. Its length is 45 inches and…

A:

Q: Express in scientific notation (3 significant figures) a) 56,000 b) 0.000857 c) 29 d) 645.8…

A: a) 560  b) 857 × 10-6

Q: Convert 42,960 m/s to mi/s. 1 mile is 1.609 km. Round to 1 decimal place.

A: Given data:  Speed (v) = 42,960 m/s 1 mile = 1.609 km Required: Speed in mi/s

Q: A person measures the velocity of a biker riding in a straight line along a sidewalk using a…

A: Formula used: Area of the square A =side2 Velocity = displacement /time The time taken by the biker…

Q: Petrie flies 3,436 feet. How many miles has he flown? (5,280 ft = 1 mi) *include units on all…

A: Petrie flies= 3436 feet 1 mi= 5280 feet

Q: Is the only standard unit in the metric system that has a prefix. what does this prefix means?.

A: Yes. A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple…

Q: What is the volume of a box that measures 55.0 cm by 30.0 cm by 45.0 cm

A: given dimension of box length (l)= 55.0 cm  breadth (b) = 30.0 cm  height (h)= 45.0 cm where volume…

Q: how can we convert km/hr to m/s

A: Convert of km/hr to m/s. is shown below:

Q: Consider that in one mile there are 5280 feet ,:a car is moving at 60mi/h, what is thein ft/s

A:

Q: A 4.5 ka block is launched FROM 21. BY A SPRING COMPRESSED REST AT A BY 20 cm. THE SPEE D OF BLOCK…

A: Given: Mass of Block (m) = 4.5 kgInitial compression of spring (x) = 20 cm = 0.20 mInitial speed of…

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.