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The sides of a small rectangular box are gauged to be 1.70 ± 0.02 cm, 2.10 ± 0.05 cm, and 3.3 ± 0.2 cm long. Compute its volume and uncertainty in cubic centimetres.
a single conducting loop of wire has an area of 7.1times10?2 m2 and a resistance of 120 ohms. perpendicular to the
What torque must the fireman exert on the hose? That is, what is the rate of change of angular momentum of water.
The average resistivity of the human body is 5 ohm*m. The conducting path between two hands is approximated as a cylinder with length 1.6m, what is the resistance between the hands
A 1500 kg blue car was travelling at 90 km/h. A 1200 kg red car was traveling behind the blue car at 108 km/h.when the two cars were 55 m apart, the blue car began braking.it took the driver of the red car 0.50 s to start braking her car. If the ..
Two rockets approach earth from opposite directions at equal speeds relative to the earth. How fast are the rockets moving with respect to the earth
a very thin circular disk of radius r 17.00 cm has charge q 10.00 mc uniformly distributed on its surface. the disk
An object undergoing simple harmonic motion takes 0.34 s to travel from one point of zero velocity to the next such point. The distance between those points is 40 cm. Calculate the frequency of the motion
A golf ball of mass 0.045 kg is hit off the tee at a speed of45 m/s. The golf club was in contact with the ball for 5.0 x10-3 s. evaluate the average force exerted on the ball by the golfclub
A toy spacecraft is launched directly upward. When toy reaches its highest point, a spring is released and the toy splits into two parts with masses of .c2 kg and .08 kg.
Near Earth, the density of protons in the solar wind (a stream of particles from the Sun) is 12.8 cm-3, and their speed is 522 km/s. what total current in amperes Earth receive
A box of mass 52.0 kg is connected to a second box with a mass of 58.0 kg. Both are sitting on a horizontal surface, find the magnitude of the tension in the string between the two boxes
A ray of white light is incident on an Acrylic surface at an angleof 40 degrees. calculate the angel of refraction for the blue and redlight
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