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Discuss the types of energy transformations that are involved in the following devices or events. (For example, for (a) striking a match transforms the chemical energy in the match head into thermal (heat) and radiant (light) energy).
a. striking a match
b. windmill
c. microphone
d. flashlight
e. water behind a dam flowing past a turbine to generate electricity
A 30.0- kg child swings on a playground swing 3.3 m long. What is the period of her motion, what is the period of the motion
The paper assumes causation: Catholic schools have an effect on student graduation rates, other things being equal. The paper assumes a specific functional form to implement the idea of causation and other things being equal-the probit model. The p..
The manufacturer of a 6V dry-cell flashlight battery says that the battery will deliver 15 mA for 60 continuous hours. During that time the voltage will drop from 6V to 4V. how much energy does the battery deliver
A 0.0400 kg golf ball initially at rest is given aspeed of 35.0 m/s when a club strikes.If the club and ball are in contact for 2.00 ms, what average force acts on the ball
A 2.10 sound wave travels through a pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward sound receiver as the heart beats. The reflected sound is then mixed with the transmitted soun..
65 kilogram Tory skates on ice at 5.0 m/s to talk to her brother Jose who is 69 kilogram, who is standing still. As they collide and stay together find with what speed do they both move off
two parallel wires are separated by 6.20 cm each carrying 2.5 a of current in same direction. what is the magnitude of
Find the magnitude of the force needed to accelerate a 110g mass with a= -0.155m/s2 i^+0.320m/s2 j^
Design a circuit that will store data from four binary sensors (presenting either a high or low value) when an enable pulse from a digital source first goes high. Assume that the enable input is normally low and the pulse is high for 1 sec.
A caris testing the effect of wearing a seatbelt on a driver. They set a situation where a crash test dummy driving the car and not wearing a seatbelt
You are required to build a 12 picofarad capacitor. If the plates can be only 2mm apart and circular, what is the radius of each of the plates
An AC power generator produces 46 A (rms) at 3600 V. The voltage is stepped up to 100000 V by an ideal transformer, and the energy is transmitted through a long-distance power line that has a resistance of 100 . What propotion of the power deliver..
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