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The owner of a van installs a rear-window lens that has a focal length of -0.300m. When the owner looks out during the lens at a person standing directly behind the van, the person appears to be now 0.240m from the back of the van, and appears to be 0.34m tall. (A) How far from the van is the person really standing, and (B) How fall is the person?
Two blocks M1=120kg and M2=100kg 1m above the ground. Estimate the velocity that the heavier mass M1 hits the ground
in a medical x-ray tube electrons are accelerated to a velocity of 108 ms and then slammed into a tungsten target. as
The E-field between the parallel capacitor plates is 4.1·105 N/C. What B-field is required so that the protons are not deflected? (Ignore relativistic effects for highvelocities.)
a volleyball spiked so that its incoming velocity of +4.0m/sis changed to an outgoing velocity of -21m/s. The mass of thevolleyball is 0.35 kg. what impulse does the player apply to the ball
A 5 ohms resistor is in SERIES with a 25 ohms resistor, and the combination is connected to a 10V battery. What is the equivalent resistance of the series combination
A hunter aims directly at a target (on the same level) 113 m away. If the bullet leaves the gun at a speed of 255 m/s, by how much will it miss the aim.
a woman on a bridge 96.0 m high sees a raft floating at a constant speed on the river below. she drops a stone from
An impulse of150 Ns is required to stop a person's head in a carcollision. If the face is in contact with the steering wheelfor 0:0304 s, what is the force on the cheekbone
In an experiment designed to measure the speed of light, a laser isaimed at a mirror that is 59.0 km due north. A detector is placed122 m due east of the laser. The mirror is to be aligned so thatlight from the laser refelects into the detector.
transverse waves with a speed of 52.0 ms are to be produced on a stretched string. a 5.40-m length of string with a
An automobile suspension involves both leaf springs with stiffness k and shock absorbers resist motion with a force -uv. The system is critically damped. If a car has mass 2000 kg and has shock absorbers with u = 2.5 x10^4 kg/s, how much should the c..
A soldier has a huge contraption that notches a large 4 kg arrow (it looks more like a lance) in a massive bow and uses a winch system to draw the arrow back to set the bow. What is the speed of the arrow
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