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An illuminated slide is held 70 cm from a screen. How far from the slide (among the slide and the screen) should a lens of focal length 7.1 cm be placed to form an image of the slide's picture on the screen? (Give the smaller of the two possible answers.)
The velocity vs. time curve of an object is an increasing straight line. What is the acceleration of the object
An extension cord made of two wires of diameter 0.129cm (no. 16 copper wire), How much power is dissipated in the cord
An elementary particle called a pi meson (or pion for short) has an average lifetime of 2.6*10^-8 s when at rest. Find how far would the pion have traveled relative to Earth
A 2000-kg car accelerates uniformly from rest to 30 m/s in a time of 20 s. What is the net force acting on the car
q1. a 78.9 kg man steps off a platform 4.57 m above the ground. he keeps his legs straight as he falls but at the
Find the change in momentum of a 1380 kg car that increases its speed from 6.0 m/s to 16.0 m/s in a time of 16 s while traveling in the same direction? Express your answer to two significant figures and include the appropriate units. What minimum for..
Compute the speed that a gas phase oxygen molecule would have if it had the similar energy of an infrared photon λ=5000nm,a visible photon λ=500nm, a UV photon λ=100nm, an X-ray photon λ=0.1nm. Use the RMS speed for a molecule√3kT/M
Assuming a constant pressure gradient, if blood flow is reduced by 52%, by what factor is a blood vessel decreased in radius
A racetrack is to have a banked curve with radius 225 m. What should be the angle of the bank if the normal force alone is to allow safe travel around the curve at 57.5 m/s
An object 0.520cm tall is placed 17.0cm to the left of the vertex of a CONVEX spherical mirror having a radius of curvature of 24.0cm. Calculate the size of the image
Graphically determine the resultant of the following three vector displacements: (1) 24 m, 36? north of east; (2) 18 m, 37? east of north; Determine the resultant direction
Assume that a gold nucleus has a radius of 6.23 fm and analpha particle has a radius of 1.80 fm. What energy must an incident alpha particle have in order to "touch" the gold nucleus
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