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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. ### An ant starts at x = 20 cm on a piece of graph paper and walks along the x axis to x = -20 cm .?

displacement = 20 cm - (- 20cm) + (- 10 cm ) = 30 cm distance covered = |(-20cm) - (20cm)| + |(-10cm) - (-20 cm )| = 40cm + 10cm = 50 cm

1 Answers · Science & Mathematics · 05/07/2020

3. ### 22.4 A uniformly charged solid sphere with a total charge of 50 nC and a radius R1 = 30 cm is surrounded concentrically by a...?

a) at 14 cm , the "enclosed" charge is Q = 50nC * (14/30... * 5.08e-9C / (0.14m)² = 2331 N/C (outward) b) at 37 cm , the enclosed charge is 50 nC: E = 8.99e9N·m²...

1 Answers · Science & Mathematics · 30/09/2020

4. ### As shown in the figure two loops carry currents with I1 = 3.6 A and I2 =9.4 A. The radii r1 = 12.5 cm and r2 = 18.5 cm . If a long current?

...7=1.8097x 10^-5T In the smaller loop, the radius = r1 = 12.5 cm = 0.125 m I1 = 3.6 Amp hence magneti field at the center = B1...

1 Answers · Science & Mathematics · 14/05/2020

5. ### A(n) 6.5 g object moving to the right at 22 cm /s makes an elastic head-on collision with a 14 g object moving ?

...)/(u₁+u₂) = (6.5*22 + 14*(-15))/(6.5 + 14) = -3.27 cm /s Initial vel. of 6.5g object in CoMF = 22 - (-3.27) = 25.27 cm /s...

1 Answers · Science & Mathematics · 18/06/2020

6. ### physics What is the wavelength (in cm ) of the wave?

A=4.14 cm V=3.59 V=f*λ V/λ=(A*2*pi*f)/(f*I) 3.59=(2*A*pi)/I I=(2*4.14*pi)/3.59 I=7.24

1 Answers · Science & Mathematics · 08/07/2020

7. ### A concave cosmetic mirror has a focal length of 38 cm . A 3.0- cm -long mascara brush is held upright 19 cm from the mirror.?

...v 1 / v = 1 / f - 1 / u 1 / v = 1 / 38 - 1 / 19 = (1 - 2) / 38 = - 1 / 38 v = - 38 cm The image distance is negative —> the image is virtual, ...

1 Answers · Science & Mathematics · 19/11/2020

8. ### What is the height h of mercury in the right side of the U-tube? Suppose that d1 = 2.0 cm and d2 = 5.0 mm .?

... / (πd²/4) = 4*1100cm³/s / π(0.50cm)² = 5602 cm /s = 560 m/s v = 4*1100cm³/s / π(2.0cm)² = 350 cm /s = 35 m/s...

1 Answers · Science & Mathematics · 20/10/2020

9. ### A 0.101 kg meter stick is supported at its 40 cm mark by a string attached to the ceiling. A 0.609 kg object hangs vertically from ?

... mark at which the second mass is attached, ℓ cm = 59.0 cm

2 Answers · Science & Mathematics · 12/07/2020

10. ### A diver 45 m deep in 10∘C fresh water exhales a 0.50 cm diameter bubble.?

...283k = 1.01e5Pa * d³ / 293K solves to d = 0.89 cm Hope this helps!

1 Answers · Science & Mathematics · 19/10/2020