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Question: When you turn on a hot-water faucet, the temperature T of the water depends on how long the water has been running. (a) Sketch a possible graph of T as a function of the time t that has elapsed since the faucet was turned on. (b) Describe how the rate of change of T with respect to t varies as t increases. (c) Sketch a graph of the derivative of T.
A parachutist with a camera descends in free fall at a speed of 11 m/s. The parachutist releases the camera at an altitude of 100 m. How long does it take the camera to reach the ground
A concave shaving mirror has a focal length of 95 cm. find the image position of a cologne bottle placed in front of the mirror at a distance of 165cm. Calculate the magnification of the image. Is the image real or virtual? Is the image inverted o..
A 5.00*10^-4 C charged mass (1.00g) is thrown upwards at a speed of 20.0 m/s and it is observed that it has gone up a distance of 15m it is moving at only 10.0 m/s, what is the electric potential at 15 m up
An observer, whose eyes are 1.92m above the ground, is standing 31 m away from a tree. The ground is level and the tree is growing perpendicular to it. The observer's line of sight with the treetop makes an angle of 21° above the horizontal. How t..
Sharon has a mass of 60 kg and is standing on a giant skateboard that is initially at rest and has a mass of 30kg. what is the speed of the skateboard
A room has a volume of 128 m3. An air-conditioning system is to replace the air in this room every twenty-three minutes, find the length of a side of the square
A certain loudspeaker system emits sound isotropically with a frequency of 2290 Hz and an intensity of 0.795 mW/m2 at a distance of 5.43 m. Assume that there are no reflections.
A very long solenoid of radius a and height h has N closely wound turns of coil. Suppose there is an increasing current I(t) that runs through the coils. Consider a point P inside the solenoid (i.e. at r
An injured monkey sits perched on a tree branch 9.0 m above the ground, while a wildlife veterinarian is kneeling down in the bushes 81.5 m away attempting to subdue the monkey with a tranquilizer gun. Given the angle above, what is minimum speed t..
A transformer has 30 turns of wire in its primary and 76 turns in its secondary. What is the output potential difference
A mechanic pushes a 2.8 multiplied by 103 kg car from rest to a speed of v, doing 5400 J of work in the process. During this time, the car moves 20.0 m. find the horizontal force exerted on the car
The baseball bat has a mass of .82kg and is .86m long. What is the baseball bat angular acceleration when it has reached 20 degrees from the verticle
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