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A train moves in one direction for 5.5 hours covering any 100 mile part of the journey in 1 hour.
a) Is the train necessarily moving at a constant speed?
b) Is the train's average speed for the entire journey necessarily equal to 100 mph?
An electron moving from the negative terminal to the positive terminal of a 12 volt battery gains(or loses) how much energy? Indicate whether it is a gain or lost in energy. Why Sketch the two terminal "plates" of the battery and theelectric field ..
A sample of an unknown substance appears to weigh 15.3 N in air and 9.16 N when immersed in a solvent with density 1.20 g/mL. Find the density and volume of the sample
A standard baseball has a circumference of approximately 23 cm. If a baseball had the same mass per unit volume as a neutron or a proton, about what would its mass be?
A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is held horizontal, Find the velocity (magnitude and direction) of the ball
a proton mass 1.67 times 10-27 kg moves in a one-dimensional electrical potential 17 mvm2x2 . what is the frequency of
A series ac circuit consists of a voltage source of frequency f=60 Hz and source voltage amplitude 345 volts, a resistor of resistance R=335 ohms, what is the current amplitude in the circuit
What is the resolving power of the objective if it is used in an oil-immersion microscope with n oil = 1.45
A refrigerator is rated at 356 W. What is the maximum amount of heat it can absorb from the food compartment in 1.00 min if the temperature in the compartment is 0.0°C and it releases heat into a room at 30°C
What effect does the magnetic field have on the speed of the particle? What are the magnitude of the acceleration of the alpha particle while it is in the magnetic field?
A bullet is fired at a block of wood whose mass is 2000 gram and suspended as a ballistic pendulum. The speed of the bullet just before impact is 28,140 cm/sec. Find what is the mass of the bullet
An airplane flying at a distance of 8.6 km from a radio transmitterreceives a signal of intensity 12 μW/m2. What isthe amplitude of the (a) electricand (b)magnetic component of the signal atthe airplane? (c) If the transmitterradiates uniformly over ..
a glass flask whose volume is 1000 at a temperature of 0.300 is completely filled with mercury at the same temperature.
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