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An automobile has a mass of 1500 kg and us moving at a speed of 100 km/h.
a. What is its momentum?
b. What average force will stop it in 5.0 sec?
c. What average force will stop it in 100 sec?
Two narrow slits are .025 mm apart. When a laser (λ = 633nm) shines on them, bright fringes form on a screen that is a meter away. These fringes are 3.0cm apart. What is the separation among the second order the central fringe and bright fringe?
An oscillating LCcircuit consisting of a 1.2 nF capacitor and a 3.2 mH coilhas a maximum voltage of 3.7 V. evaluate the maximum current through the circuit
Take element Z = 41 from the periodic table. Ionize it 40 times so that there is only one electron left orbiting around the nucleus. What is the ground state energy of the electron
Starting from rest, the elevator accelerates upward. During the acceleration, the hoisting cable applies a force of 9300 N. Illustrate what does the scale read during the acceleration?
Two identical uniform poles of mass 50 kg and linear mass density 15 kg/m are supported by pivots 2 m apart on level ground. what angle do the poles make with the vertical
Two equal size boxes, A and B, contain ideal gases. An inserted thermometer shows TA= 50°C and TB= 10°C. This is all we know about the gas in the boxes. Which of the following statements must be true? Could be true? Must be false? Explain your rea..
What is the magnitude of the momentum of the scattered photon?
What is the pressure change in water going from a 3.0- cm-diameter pipe to a 2.1- cm-diameter pipe if the velocity in the smaller pipe is 6.5 m/s?
The average human eye can see visible light between 760. nm and 380. nm. What is the frequency of each wavelength?
A fixed 0.15 kg solid-disk pulley with a radius of 0.060 m is acted on by a net torque of 5.4 m�·N. What is the angular acceleration of the pulley
Two wires are identical, except that one is aluminum and one is nichrome. The aluminum wire has a resistance of 0.21 ?. What is the resistance of the nichrome wire
In a colliding-beam experiment, particles traveling at 0.85crelative to the laboratory met in a head-on collision by other particles traveling in the opposite direction at 0.92c relative to the lab. What is the relative speed of approach of the parti..
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