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related to: Cm

1. ### ABCDE is a regular Pentagon of 10 cm size. FGHIJ are mid points of AB, BC, CD, DE and EA. If 1 kg mass has been placed on every point .....?

I assume that "10 cm size" means a perimeter of 10 cm . The internal angles of...1*cos108º = 2.618 cm² by the law of cosines c = 1.618 cm so the semiperimeter is s = ½(1.618 + 1 + 1) cm = 1.809 cm ...

2 Answers · Science & Mathematics · 18/09/2020

2. ### If a car is traveling at 58 mi/h , what is its speed in cm /shake ?

(58 x 1.609)/3600 km/sec (58 x 1.609)/3600 km/sec x (1000m/1km) x (100cm/1m) x(2.5 x 10^(-4) sec/shake)= 0.65 cm /shake

2 Answers · Science & Mathematics · 13/09/2020

3. ### A player standing near the basket to grab a rebound jumps 72.7 cm vertically.?

Assume the height refers to his feet. h(t) = ho + Vyo*t - 4.9*t² Vyo² = 2gh where h is max height. 0.727 = Vyo²/19.6 Vyo = 3.7748m/s The moment of max height is when Vy = Vyo - gt = 0 at t = Vyo/g...

1 Answers · Science & Mathematics · 14/09/2020

4. ### The Eiffel Tower is a steel structure whose height increases by 19.0 cm when the temperature changes from -9 to +42 oC.?

type of steel is needed. I'll guess at 12e-6 /K ∆L/L = α∆T 0.19/L = 12e-6(42– –9) L = 0.19 / (12e-6)(51) = 310 m Thermal Expansion ∆L/L = α∆T, α is linear thermal expansion coef  L...

3 Answers · Science & Mathematics · 18/09/2020

5. ### If a single gold atom has a diameter of 2.9×10^−8 cm , how many atoms thick was Rutherford's foil?

Considering atoms lined up side to side number of atoms in the thickness = (4 x 10⁻³ mm)/(2.9 x 10⁻⁷ mm) = 13793 atoms

1 Answers · Science & Mathematics · 14/09/2020

6. ### A grasshopper makes four jumps ?

...four components west we have: 35 + 25cos36° + (-21cos61°) + (-24cos51°) i.e. 29.9 cm west Resolving the four components north we have: -25sin36° + (-21sin61...

1 Answers · Science & Mathematics · 16/09/2020

7. ### A block of aluminum with a volume of 96.7 cm3 absorbs 69.5 J of heat.?

Heat absorbed 69.5J Volume = 96.7 cm ^3 density of aluminum =2.70 g/cm3 initial temperature was 31.2 ∘C  final...

1 Answers · Science & Mathematics · 15/09/2020

8. ### pls help asap?

... α = 24e-6, 0.0066 m = 24e-6 * L * 135º L = 2.03 cm Whoever made your answer key did a bad conversion from...

1 Answers · Science & Mathematics · 14/09/2020

...by "meaning" 1-2 slope is Δy/Δx = 2/1 = 2 cm /s 2-4 slope is 1/2 = 0.5 cm /s 0-1 area is 1x1 = 1 1-2 area...

1 Answers · Science & Mathematics · 12/09/2020

10. ### Environmental science?

...garm of beet =2000 calories 1 calorie = 1/2000 = 0.0005 grams 1m =100 cm 1cm = 10-2 m Gross productivity of the sugar beets = Net primary...

1 Answers · Education & Reference · 15/09/2020