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What is the latitude of someone in the United States who sees the Sun at an altitude of 65.5° on December 22? Determine the month and day when the Sun is at maximum altitude for an observer in Washington, D.C. (39°N). What is the altitude of the Sun at this time?
What do you mean by the concept of energy in physics? Is the energy has any physical significance in the daily life of a common man? Please explain this concept in easy points
Three separately located capacitors (capacities: C1, C2, C3) with the electric charges: Q1, Q2, Q3 initially are not connected by conductors
a bee that is 3m away from a person produces a buzzing sound that is barely audible (the intensity is the threshold of hearing I0) What is the decible level of 1000 bees
What is the significance of the plastic handle in an aluminum pan?
When a gas is quickly compressed (say by pushing down a piston), its temperature increases. When a gas expands against a piston, it cools. Describe these changes in temperature using the kinetic theory, in particular nothing what happens to the momen..
Two objects of the same mass move along the same line in opposite directions. The first mass is moving with speed. What was the speed of the second mass before the collision
in a heart pacemaker a pulse is delivered to the heart 81 times per minute. the capacitor that controls this pulsing
The volume control on a surround-sound amplifier is adjusted so the sound intensity level at the listening position increases from 23 to 61 dB
A 225 gram arrow is shot vertically into the air from an initial height of 1.40 meter above the ground with an initial speed of 18.6 m/s. obtain the amount of mechanical energy dissipated by air friction
A student is reading a lecture written on a blackboard. If the writing on the blackboard is 4.80 cm high, what is the size of the image on her retina
The builder at the rear gets tired and suggests that the drywall should be held by its narrow side. Calculate the weight (in N) he must now carry
A cylinder with a height of 1.10m and an inside diameter of 0.190m is used to hold propane gas (molar mass 44.1g/mol ) for use in a barbecue. Calculate the mass of propane that has been used
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