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How do you convert 85 miles per hour to kilimeters per second?
85 mi/h x 1 km/.621 mi x 60 min/1 h x 60 sec/1 min = 492,753 km/sec (490,000 km/sec if you address the concern of significant figures)
How high is an apple above the ground if its gravitational potential energy is 175 jouleand its mass is 0.36 kilograms?
PE = m•g•h, where m is mass in kg, g is 9.8m/s2, and h is height in meters. Solve for h.h = PE/m•g = 175 Joules/(0.36kg)(9.8m/s2) = 49.6m = 5.0 x 101m rounded to 2 significant figures
How do you find capacity of a cylinder?
The capacity of a cylinder would be its volume. V=(pi)(r^2)(h), where V = volume in cubic units, pi = 3.14159 rounded to six significant figures (you can round to a different value; ask your teacher), r is radius, and h is height.Suppose you want to find the volume of a 15-cm high cylinder with a diameter of 8.00 cm. The radius is half the diameter, or 4.00 cm. V = (3.14159) x (4.00 cm)^2 x (15 cm) = 754 cm^3 (rounded to three significant figures)
How many lines of symmetry does a letter h have?
Capital H has 2 lower case h has none
Kellie flips a dime and then a quarter How many results are possible?
4: h/h, h/t, t/h & t/t
What is the Speed of light in 10 significant figures?
1,079,252,848 km/h or 299,792,457.8m/s
What is 70 kilometers per hour in meters per second?
70km/h x (1000m/1km) x (1h/3600s) = 19.4m/s (without significant figures)
How many feet per second is in 3.4 mph please show work. THX?
1mi = 5280ft 1h = 3600s 3.4mi/h x 5280ft/mi x 1h/3600s = 5.0ft/s (rounded to two significant figures)
What is a equation for the speed limit 75 kph in mph?
Kph is km/h and mph is mi/h. 1 mi = 1.61km.75 km/h x 1mi/1.61km = 47 mi/h or 47 mph (rounded to two significant figures due to 75 kph).
How long does it take to drive 542 miles at 60 mph?
d = 542mi s = 60mi/h s = d/t t = d/s t = (542mi)/(60mi/h = 9.03333h, or 9h, rounded to correct number of significant figures.
Who were the Nok and why are they significant?
h
What has the author K H Figures written?
K. H. Figures has written: 'A manual for dental hygienists' -- subject(s): Dental hygienists, Handbooks, manuals
Why is it significant to the salt water?
h
How do you find the inverse log of a number?
AnswerLet x and y be any real numbers:log x = yx = log inv (y) = 10^yExample:pH =13.22 = -log [H+]log [H+] = -13.22[H+] = inv log (-13.22) = 10^(-13.22)[H+] = 6.0 x 10-14 MFINDING ANTILOGARITHMS using a calculator (also called Inverse Logarithm)Sometimes we know the logarithm (or ln) of a number and must work backwards to find the number itself. This is called finding the antilogarithm or inverse logarithm of the number. To do this using most simple scientific calculators,enter the number,press the inverse (inv) or shift button, thenpress the log (or ln) button. It might also be labeled the 10x (or ex) button.Example 5: log x = 4.203; so, x = inverse log of 4.203 = 15958.79147..... (too many significant figures)There are three significant figures in the mantissa of the log, so the number has 3 significant figures. The answer to the correct number of significant figures is 1.60 x 104.Example 6: log x = -15.3;so, x = inv log (-15.3) = 5.011872336... x 10-16 = 5 x 10-16 (1 significant figure)Natural logarithms work in the same way:Example 7: ln x = 2.56; so, x = inv ln (2.56) = 12.93581732... = 13 (2 sig. fig.)Application to pH problems:pH = -log (hydrogen ion concentration) = -log [H+] Example 8: What is the concentration of the hydrogen ion concentration in an aqueous solution with pH = 13.22? pH = -log [H+] = 13.22log [H+] = -13.22[H+] = inv log (-13.22)[H+] = 6.0 x 10-14 M (2 sig. fig.)
What has the author H Milligan written?
H. Milligan has written: 'The significant years in photography'
What has the author H Alken written?
H. Alken has written: 'Studies of the horse and other animals, landscapes, figures &c'
Geometric figures that start with the letter h?
Hexagon, a six-sided figure.
