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1. Why is thermal energy hard to convert into other forms of energy like potential or kinetic energy?
2. What are the charges that actually move to make a current flow in a wire? How do you know that?
3. What measurement in a circuit provides similar information about a charge's potential energy? Why? What would be analogous to a resistor in the skate park simulation?
A cannonball is fired horizontally at 200m/s off the top of a 50m tall cliff. how far will the ball land from the cliff bottom
A student sits on a rotating stool holding two weights, each of mass 3.00 kg. When his arms are extended horizontally, Find the new angular speed of the student
A 180 g wire is held under a tension of 216 N with one end at x = 0 and the other at x = 15.0 m. At time t = 0, pulse 1 is sent along the wire from the end at x = 15.0 m. At time t = 37.9 ms, pulse 2 is sent along the wire from the end at x = 0. A..
to examine a particular blood sample in biology lab a student uses a compound microscope set to have a magnification of
A cross-country skier slides horizontally along the snow and comes to rest after sliding a distance of 28 m. determine her speed at the start of the slide
Two capacitors are connected in series. Let 3.50 microfarads be the capacitance of first capacitor, 5.50 microfarads the capacitance of the second capacitor. Calculate the charge on each capacitor.
Did you firm earn profit or incurred loss at the end and make a small comment on your financial position at the end.
A student is studying a 100.0g mass oscillating on a horizontal spring of spring constant k=18N/m. At t=0, the object was at rest and its position was x= 2.55cm from its equilibrium position. What is the amplitude of oscillation of the mass?
Thermal energy can shift some of the electrons in a hot semiconductor from valence levels to conduction levels. What effect do these shifts have on the semiconductor's ability to conduct electricity.
Imagine that in another universe the speed of the light is only 100 m/s. A person travelling along an interstate highway at 120 km/h ages how much slower than a person at rest?
A 8.60-kg block of ice, released from rest at the top of a 1.48-m-long frictionless ramp, slides downhill, reaching a speed of 2.88m/s at the bottom. What is the angle among the ramp and the horizontal?
2.0 kg of ice melts into liquid water at 0 C. What is the change of Entropy of the ice (water)
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