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One rod is made from quartz and another from lead. The rods are heated and experience the same change in temperature. The change in length of each rod is the equal. If the initial length of the lead rod is 0.16 meter, calculate the initial length of the quartz rod?
LQ = m
A proposed space station includesliving quarters in a circular ring 54.5 m in diameter. At what angular speed should the ring rotate so the occupants feel that they have the same weight as they do on Earth?
a simple pendulum has a period of 2.40 seconds at a location where g 9.810 ms2. what is the value of g at another
How much greater is an angular momentum of the Earth orbiting about the sun than the moon orbiting about the Earth? (Set up a ratio of angular momenta using data on inside back cover. The period of the moon is about 27.3 days.)
On a spacecraft, two engines fire for a time of 598 s. One gives the craft an acceleration in the x direction of ax = 4.92 m/s^2, while the other produces an acceleration in the y direction of ay = 7.60 m/s2. At the end of the firing period, the c..
An electric motor can accelerate a 4-kg grinding wheel in a form of a solid disk of radius 0.2 m from rest to 75 rad/s in 15 s. Find the torque generated by the motor
An arrow is shot at an angle of θ=45° above the horizontal.
a spring with an 7.9-kg mass is pulled back 0.25 m. if its frequency is 3.6 hz then find the position velocity and
A parallel-plate capacitor has a capacitance of 200 pF, a plate area of 680 cm2, and a mica dielectric (? = 5.4) completely filling the space between the plates. At 64 V potential difference, calculate (b) the magnitude of the free charge on the ..
q1. the two parallel plates in the figure below are 2.0 cm apart and the electric field strength between them is 2.1
Monochromatic light is incident on a grating that is 75 mmwide and ruled with 50,000 lines. What is the wavelength of the incident light
A 2.0 kg object moving with a velocity of +6.0 m/s collides with a 6.0 kg object that is initially at rest. Find the energy lost in the collision.
White light spans the wavelength range among about 400 nm and 700nm, If white light passes through two slits 0.31 mm apart and falls on a screen 1.3 m from the slits, discover the distance between the first-order violet and first-order red fringes.
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