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Your mass is 50 kg. Suppose you are standing on a scale in an elevator that starts moving up and increases its speed at the rate of 3 m/s every second. What would be the reading on the scale?
An airplane takes off and flies 240km on a course of 35 degrees north of west, find the displacement from its starting point to its landing point
White light is incident from air onto a triangular prism at a 45 degree angle by respect to the normal. It refracts at the prism then again at the air as it exits the prism. If the prism has an index of refraction of 1.49 for red light and 1.52 for v..
A catapult throws a projectile at a castle, but it lands 5.00 m short of the castle wall. The position of the projectile as a function of time is given by the equation r→(t) =(21.7m/s)t i^ + [(12.5m/s)t - (4.90m/s2)t2]j^. What is the average veloci..
The origin of the coordinate system and with a label at their heads. Two of these vectors are given in terms of the unit-vectors I and j as
If a metric ton is 1.000 x10^e3 kg, how many 74 kg people can safely occupy an elevator that can hold a maximum mass of accurately 1 metric ton.
Inside the larger solenoid is a smaller coil with 40 turns, radius 2.0 cm, and resistance of 20 ohms. Find the magnitide and direction of the induced current in the smaller coil caused by the changing flux.
A particular guitar string is supposed to vibrate at 214 Hz, but it is measured to actually vibrate at 272 Hz. By what percentage must the tension in string be changed to get the frequency to the accurate value.
What is the voltage across six 6.0V batteries when they are connected five in parallel with one another and this combination wired in series with the remaining one
A thin spherical shell has a radius R=3 m. A constant force F=2 N is applied to the shell, always tangential to the surface of the sphere, What is the mass of the shell
A pendulum is made of a long narrow stainless steel rod and has aperiod of T seconds at -200.0 degrees C. If the temperatureincreases to +400.0 degrees C, what is the new period? (The linearexpansion coefficient of the stainless steel is 1.600×10^-5K..
How much heat flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 24°C water in reaching equilibrium, What is the change in entropy due to this heat transfer
A 26 kg gun is standing on a frictionless surface. The gun fires a .0573 kg bullet with a muzzle velocity of 323 m/s. The positive direction is that of the bullet immediately after the gun was fired. compute the momentum of the gun immedately afte..
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