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Q. Consider an infant who weighs 100 newtons. During each year she grows so that each dimension of her body increases by 5%. How much will she weigh then? (Assume her density remains unchanged)
Q. A plastic ring has a radius R = 50.0 cm. Two small charged beads are on the ring. Bead 1 of charge +2.00 uC is fixed in place at the left side of the ring. Bead 2 of charge +6.oo uC can be moved along the ring. The two beads produce a net electric field of magnitude E at the center of the ring. At what (a) positive and (b) negative value of angle theta should bead 2 be positioned such that E = 2.00 x 10^5 N/C?
A cannonball launched with an initial velocity of 161 m/s at the angle of 45 degrees follows a parabolic path and hits a balloon at the top of its trajectory. Neglect air resistance, how fast is it going when it hits the balloon? What is the accelera..
What is error in the simple pendulum approximation
Which of the planets fits the following description: "a solid, cool surface, with occasional dust clouds and a thin CO2 atmosphere".
After the Sun exhausts its nuclear fuel, its ultimate fate might be to collapse to a white dwarf state. In this state, it would have about the same mass as it has now, but its radius would be equal to the radius of the Earth.
What is change in electrical potential energy of electron
Two point charges are separated by 6 cm. THe attractive force between them is 20N. What is force between them when they are separated by 9 cm? What is the equation used to arrive at this reply?
How numerous atoms does each hand contain
A pendulum consists of a 4.98kg mass on the end of a 0.873 m string. The mass is pulled aside so the string makes an initial angle with the vertical of 12.5o. The mass is then released with initial speed of 2.10m/s upward and perpendicular to the rop..
Find out the electric field at radius
A 0.60 kg mass vibrates according to the equation where x is in meters and t is in seconds. find out (a) amplitude, (b) frequency, (c) total energy, and (d) kinetic energy and potential energies when x = 0.30 m.
Estimate the time constant in a RC circuit.
A 2.62 kg mass attached to a light string rotates on the horizontal, frictionless table. The radius of the circle is 0.4207 m, and string can support a mass of 14.70 kg before breaking.
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