A boy with a mass of 55 kg walks into a room and sees a girl...
A boy with a mass of 55 kg walks into a room and sees a girl 8.0 m in front of him who has a mass of 40 kg. What is his gravitational attraction to her?
A. 2.0 × 108 N
B. 2.3 × 10-9 N
C. 2.2 × 10-11N
D. 2.4 × 10-8 N
E. 2.1 × 109 N
Please Show Work!
Homework Answers
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2. A 10 kg cat walks along a 3 m long plank with a mass of 4 kg that is supported by two sawhorses. The right sawhorse is 0.7 m from the end of the plank. How far from the end of the right sawhorse can she walk before tipping the plank over. 3. Nintendo has designed a new minigame for the next Sonic Party. In the game, players have to balance a rigid body. Where should...
The photograph below shows a girl pushing on a large stone
sphere. The sphere has a mass of 8200 kg and a radius of 90 cm and
floats with nearly zero friction on a thin layer of pressurized
water.
Part A
Suppose that she pushes on the sphere tangent to its surface
with a steady force of F = 55 N and that the pressured water
provides a frictionless support. How long will it take her to
rotate the sphere...
Problem 2: An imaginary particle π has mass m 5 x 10-27 kg and charge q +3c 4.8x 10-19 C. Compare the magnitude of the electric repulsion between two π particles with that of gravitational attraction between them. Problem 3: Two equal charges 22 x 10-6 C are located at -0, y 0.3 m and z 0, V0.3 m respectively. What are the magnitude and direction of the total electric force that q1 and g2 exert on a third charge...
please answer both questions.
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