What is the maximum magnetic field due to the solar radiation at theEarth's surface? Give your answer in units of micro-TeslaPlease enter a numerical answer below. Accepted formats are numbers or "e"based scientific notation e.g. 0.23, -2, 1e6, 5.23e-8 Assume our atmosphere absorbs 23% of the incoming solar radiation,and that the distance from the Earth to the Sun is 1.5 × 1011 m. Fromthis information, what do you expect is the total power output of the sun?[IMPORTANT: to express a number like 2 × 1021, type 2e21]Please enter a numerical answer below. Accepted formats are numbers or "e"based scientific notation e.g. 0.23, -2, 1e6, 5.23e-8Enter answer hereWPart bHow much solar energy do you absorb after sunbathing for an hour?Assume your skin has an exposed surface area of approximately 1.2m²,and you absorb 50% of the incident energy. Give your answer inmegajoules.

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Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter1: Getting Started

Section: Chapter Questions

Problem 1PQ: The average life expectancy in Japan is 81 years. What is this time in SI units?

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Problems A12 1-1. (a) List the SI units of length, mass, time, electric cur- rent, temperature, and amount of substance. Write the abbre- viation for each. Jund juod (b) Write the units and symbols for frequency, force, pres- and power. sure, energy, 1-2. Write the name and number represented by each abbre- viation. For example, for kW you should write kW = kilowatt = 10³ watts. (a) mW (b) pm (c) ΚΩ (d) μC (e) TJ (f) ns (g) fg (h) dpa 163. Express the following quantities with abbreviations for units and prefixes from Tables 1-1 through 1-3: (a) 10-¹3 joules0 + (1)0,HE (b) 4.317 28 x 10-8 coulombs (d) 10-10 meters (e) 2.1 x 10¹3 watts (f) 48.3 x 10-20 moles (c) 2.997 9 x 10¹4 hertz bns M2.01 1-4. Table 1-4 states that 1 horsepower = 745.700 watts. Consider a 100.0-horsepower engine. Express its power output in (a) watts; (b) joules per second; (c) calories per second; (d) calories per hour. 1-5 (a) Refer to Table 1-4 and calculate how many meters are in 1 inch. How many inches are in 1…
A hot tub with a surface area of 28 ft2 is filled with water to a depth of 29 in . Hint: volume is calculated as area × height (A × h). A) What is the volume of water in the tub, in liters? Express your answer to two significant figures and include the appropriate units. B) How many kilojoules are needed to heat the water from 59∘F to 103 ∘F? Express your answer to two significant figures and include the appropriate units. C) If the hot-tub heater provides 5900 kJ/min, how long, in hours, will it take to heat the water in the hot tub from 59∘F to 103∘F? Express your answer to two significant figures and include the appropriate units.
This was wrong. Can you solve this again with these numbers? What is the root mean square velocity, vrms, for Hydrogen molecules (H2) at 20oC? Hint: How many amu does an H2 molecule contain. 1 amu = 1.67 x 10-27 kg Boltzman's Constant, k = 1.38 x 10-23 J/K Give your answer in m/s to 4 significant figures (NO DECIMALS)
1%A9 li. t LTET 4G+ Vol) O A X O U 9:-7 Second H.W.pdf 1. Draw and label the vector with these components. Then determine the magnitude and angle of the vector. a- Az = 3 ,A, = -2 b- B, = -2 ,B, = 2 2. What is the speed of horse in meter per second that runs a distance of 1.2 miles in 2.4 minutes? 3. A car moving along X- axis according on the function: X (t) = 2 t2 + 5t +7 on [1,2] Find: a- The average velocity. b- The acceleration at 3s. 4. Julie is walking around a track at a 2m/s for some exercise. She then decides to start jogging so she accelerates at a rate of 0.5m/s? for 3 seconds. How far did Julie travel from the time she started to accelerate to the end of the 3 seconds? 5. Ralph uses a 2000 to do this. force to push his car along a road for 1000 m. It takes him500 s a- Calculate the amount of work that Ralph did on the car. b- Calculate the amount of power that he generated. II
Give me additional examples of values with infinite significant figures. According to our handouts, here is one of the examples: 3000 chocolate Bars which are considered countable numbers. Moreover, the final zeroes in a whole number are significant IF the unit of quantity is measurable like mass, temperature, length, current etc. Therefore, even the trailing numbers are counted as significant. Example: 40 kg (2 sig figs) & 1900 mm (4 sig figs). Give me more examples as well. Thank you!
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Imagine that in the measurement of 4.6 cm long metallic cylinder, your measurements in centimeters are (3.0, 3.5, 4.0, 4.5, 5.0, 5.5,6.0). What is the standard error of your length measurement. O 1.08 O 0.022 O 0.22 O 0.41 O2.22
A cylinder containing 246 cubic centimeter of gas at a pressure of 101 kPa when its temperature is 526 K. Given that its temperature is unchanged when the pressure was increased by a factor of 3.9, Determine the new volume of the gas (In cubic centimeter). Note: Your answer must be in cubic centimeter, however, do not include the unit, just enter the magnitude that corresponds to the final volume in cubic centimeter. Round your answer to 2 decimal points Round your answer to 2 decimal points Answer:
Fr-223 undergoes alpha decay and produced -8.9x100 kJ/mol of energy in the process. Determine the actual mass (in g/mol) of the produced At-219 nucleus. Express your answer in 2 decimal places. Do not write the units. Mass of Fr-223 = 223.020 g/mol; Mass of He-4 = 4.003 g/mol Mass of proton = 1.0078 amu; Mass of neutron = 1.0087 amu Speed of light = 3.00 x 108 m/s 1 amu = 1 g/mol = 1.66 x 10-27 kg 1 MeV = 1.60 x 10 13 J
Estimate how many molecules of air are in each 2.5-L breath you inhale that were also in the last breath Galileo took. [Hint: Assume the atmosphere is about 10 km high and of constant density.] Express your answer using two significant figures. N=?? (I got 27, but I was also wrong).

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