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Q. A woman on a 10 speed bicycle travels at 9 m/s relative to ground as a she passes a little boy on a tricycle going in the opposite direction. If the boy is travelling at 1m/s relative to the ground, how fast does the boy appear to be moving relative to woman?
Q. A charge of -1.9 × 10-9 C is at the origin and a charge of 8.8 × 10-9 C is on the x-axis at x = 3 m. At what two locations on x-axis (xpositive, xnegative) is the potential zero?
What is the maximum speed of the mass. What is the radial acceletation experience by mass while it remains at its max. angular speed.
An object weighs 302 N in the air. When tied to a string, connected to a balance, and immersed in water, it weighs 220 N. When it is immersed in oil, it weighs 257 N. what is the density of the object.
Suppose you wish to fabricate a uniform wire out of 2.6 g of copper. If the wire is to have a resistance of R = 0.25 and if all of the copper is to be used, what must be the length of the wire in m and the diameter of the wire in mm.
Chameleons catch insects with their tongues, that they can rapidly extend to great lengths. In a typical strike, the chameleon's tongue accelerates at a remarkable 250 m/s^2 for 20 {rm ms}, then travels at constant speed for another 30 {rm ms}.
A child goes down a playground slide with an acceleration of 1.22. Find out the coefficient of kinetic friction between child and slide if the slide is inclined at an angle of 31.0 below the horizontal.
What is the ratio of the cardinals magnitude. One mole of tungsten (6 1023 atoms) has a mass of 184 grams, and its density is 19.3 grams per cubic centimeter. You have a long thin bar of tungsten, 2.3 m long, with a square cross section, 0.15 cm on..
Tritium (3H) decays by negative beta decay with a half-life of 12.16 years. Use an atomic weight. What is the mass in g of 1 mCi of tritium? 3.026 For 3H.To what nucleus does 3H decay.
calculate the total mechanical energy of the glider at any point in its motion. Calculate the maximum speed of glider.
Two equal forces act on the two different objects, one of which has a mass ten times as large as the other. Will the more massive object have the larger acceleration, an equal accelearation, or a smaller acceleration.
When blue light of wavelength 465 nm illuminates a diffraction grating, it produces a 1st order utmost but no 2nd order maximum.
Liquid nitrogen has a boiling point of 77.3 K and a latent heat of vaporization of 2.01 105 J/kg. A 60.0-W electric heating element is immersed in an insulated vessel containing 46.5 L of liquid nitrogen at its boiling point. How various kilograms of..
Once the station is completed, it is set rotating at a rate that requires an object at the rim to have radial acceleration, thereby simulating Earth's surface gravity. This is accomplished using two small rockets, each with 130 thrust that are mounte..
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