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(a) Find the tangent line approximation to cos x at x = π/4.
(b) Use a graph to explain how you know whether the tangent line approximation is an under- or overestimate for 0 ≤ x ≤ π/2.
(c) To one decimal place, estimate the error in the approximation for 0 ≤ x ≤ π/2
If the coefficient of friction between the block and the floor is 0.40, what is the mass of the block.
Water flows at 0.855 m/s from a hot water heater, through a 450-kPa pressure regulator. The pressure in the pipe supplying an upstairs bathtub 3.70 m above the heater is 414-kPa. What's the flow speed in this pipe?
Two converging lenses, each with a focal length of 0.08 m, are used in combination to form an image of an object located 0.24 m to the left of the left lens in the pair. Where is the final image located relative to the lens on the right
a very long uniform line of charge has charge per unit length 4.7410-6 cm and lies along the x-axis. a second long
A 56.0 kg ice skater spins about a vertical axis by her body with her arms horizontally outstretched, making 1.50 turns each second. The distance from one hand to the other is 1.5 m . Biometric measurements indicate that each hand typically makes ..
Ship A is located 4.2 km north and 2.6 km east of ship B. Ship A has a velocity of 22 km/h toward the south and ship B has a velocity of 38 km/h in a direction 38° north of east. At what time (in h) is the separation between the ships least
Unpolarized passes through two polarizers that are oriented 65 degrees to each other. What is the orientation of the polarizers
A 26.2-kg dog is running northward at 3.05m/s, while a 5.30-kg cat is running eastward at 3.53 m/s. find the direction and magnitude of the owner's velocity
q1. a 2.60- metal bar 1.50 long and having a resistance of 10.0 rests horizontally on conducting wires connecting it to
The rest energy of an electron is 0.511 MeV. The rest energy of a proton is 938 MeV. Assume both particles have kinetic energies of 1.80 MeV. (a) Find the speed of the electron. c (b) Find the speed of the proton. c
An object that is 5 centimeter tall is located 10 centimeter in front of a converging lens that has a 6 centimeter focal length. Determine what is the size of the image produced
Provided the amplitude is sufficiently great, the human ear can respond to longitudinal waves over a range of frequencies from about 20.0 Hz to about 20.0 kHz. How far apart would the red dots be
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