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The image of a coin you see during a lens is on the object side and is upright, the signs of image distance and magnification are
1. The signs of image distance and magnification are both negative.
2. The signs of image distance and magnification are both positive.
3. The sign of image distance is positive and the sign of the magnification is negative.
4. The sign of image distance is negative and the sign of the magnification is positive.
The build-up of plaque on the walls of an artery might decrease its diameter from 1.1 cm to 0.71 cm. The speed of blood flow was 14 cm/s before reaching the region of plaque build up. Discover the speed of blood flow within the plaque region.
A fully loaded station wagon has a mass of 1690 kg. If each of its four tires is inflated to a gauge pressure of 211 kPa, what is the total tire area in contact with road . What least distance are they from each other? The angle might be too large ..
The angular momentum of a flywheel having a rotational inertia of 0.100 kg·m2 about its central axis decreases from 3.00 to 0.400 kg·m2/s in 0.80 s. What is the average power of the flywheel
q1. a 3.10-m-long 310 kg steel beam extends horizontally from the point where it has been bolted to framework of a new
Mass 1 is a 15.0 g marble sliding to the left with a velocity of magnitude 0.72 m/s on the frictionless, Calculate the momentum of the marbles before the collision
A certain dog whistle operates at 23.0 kHz while another (brand X) operates at an unknown frequency. estimate the operating frequency of brand X
a parallel-plate air capacitor has a capacitance of 500 pf and a charge of magnitude 0.250uc on each plate. the plates
A magnetic field and an electric field, in separate regions of space, have strengths of 1.25 T and 1.25 N/C, respectively. What is the energy density of the magnetic field
A projectile is launched horizontally, to the left, at 50.0m/s off of a cliff that is 80.0 meters tall. Ignore air friction and take g = 10.0 m/s/s (instead of 9.8). Where in the projectile’s motion does it have its minimum speed?
when an 81.0-kg adult uses a spiral staircase to climb to the second floor of his house his gravitational potential
A 20.0-kg mass is supported by two strings as shown in Fig. 12-4. The left string is 2.00 m long and the right string is 5.00 m long. What is the tension in the right side string
A crate with a mass of 171.5 kg is suspended from the end of a uniform boom with a mass of 80.3 kg. The upper end of the boom is supported by a cable attached to the wall and the lower end by a pivot (marked X) on the same wall. compute the tensio..
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