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A uniform 1.4-kg rod that is 0.77 m long is suspended at rest from the ceiling by two springs, one at each end. Both springs hang straight down from the ceiling. The springs have identical lengths when they are unstretched. Their spring constants are 66 N/m and 30 N/m. Find the angle that the rod makes with the horizontal.
A physics teacher tells her class that their final project requires the students to measure a specific variable and determine the velocity of a car with no more than 2.5% error. Will Jennifer and Johnny pass their final project
A banked circular highway curve is designed for traffic moving at 67km/h. The radius of the curve is 209 m. Traffic is moving along highway at 48km/h on a rainy day.
A transformer has a primary coil with 1200 turns and a secondary coil with 225.0 turns. what is the voltage output from the secondary coil
Space vehicles traveling through Earth's radiation belts can intercept a significant number of electrons. The resulting charge buildup can damage electronic components and disrupt operations. Suppose a spherical metallic satellite 1.3 m in diamete..
Two long, parallel wires are separated by a distance of 2.1 cm. What is the current in the second wire? Express the answer with two decimal places
An airplane travels 170 m/s as it makes a horizontal circular turn which has a(n) 1.4 km radius. What is the magnitude of the resultant force on the 150 kg pilot of this airplane
A family ice show is held in an enclosed arena. The skaters perform to music playing at a level of 71.5 dB. What total sound intensity engulfs you
A 160 kg hoop rolls along a horizontal floor so that the hoop's center of mass has a speed of 0.170 m/s. How much work must be done on the hoopto stop it?
an electron moves with a speed v 10-2c inside a one-dimensional box v 0 of length 0.971 nm. the potential is infinite
The work required to stretch a certain spring from anelongation of 4cm to 5cm is 30.5J. What is the work required to increase the elongation from 5cm to 6cm
To make a bounce pass, a player throws a 0.60 kg basketball toward the floor. what was the impulse delivered to it by the floor
A uniform rod of mass 3.00 x 10^-2 kg and length 0.350m rotates in a horizontal plane about a fixed axis through its center and perpendicular to the rod. What is the angular speed of the system at the instant when the rings reach the ends of the ro..
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