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Assume that all surfaces in the figure are frictionless. What value should m have so the masses won't accelerate? Now take μk = 0.15 on all surfaces and m = 1.1 kg . What will be the acceleration of both masses? Show the force diagram for each.
A spaceship is 1600 m long when it is at rest. When it is traveling at a certain constant speed its length is measured by external observers, What is the speed of the spaceship in terms of the speed of light
a 0.145-kg baseball pitched horizontally at 39 ms strikes a bat and is popped straight up to a height of 41 m. if the
A 4.55 mol sample of a diatomic ideal gas (? = 1.4) expands slowly and adiabatically from a pressure of 4.10 atm and a volume of 11.5 L to a final volume of 30.0 L. What is the initial temperature of the gas
A proton moving at 3.1×105m/s to the right enters a region where a uniform electric field of magnitude 53kN/C points to the left
Find the total energy of a 5.0 kg object oscillating on a horizontal spring with amplitude of 10 cm and a frequency of 2.7 Hz
Two resistors are connected in series to a battery with an emf of 12 V. The voltage across the first resistor is 2.9V and the current through the second resistor is 0.13A. Find the resistance of the second resistor
displacement 1 is in the yz plane 58.0deg from the positive direction of the y axis has a positive z component and has
Objects of equal mass are oscillating up and down in simple harmonic motion on two different vertical springs. The spring constant of spring 1 is 165 N/m. The motion of the object on spring 1 has twice the amplitude as the motion of the object on spr..
A merry go round at a children's playground can be approximated as a uniform circular disc with a diameter of 3.72 m and a mass of 288 kg. A constant force of 178 N is applied perpendicular to the outer edge of the merrygoround. How long does it t..
For the following circuit: V1 = 300 V, R1 = R4 = 10 ?, R2 = R3 = 20 ? and R5 = 40 ?. Find the equivalent resistance of the network
a mosquito collides head-on with a car traveling at 60 mph. is the force of the mosquito on the car larger than smaller
If an piece of Iron (c = 450 J/kg C) at 65.00 C is dropped into .250 kg of ethyl alcohol at 25.00 C and the final temperature of the two comes to 35.00 C what was the mass of the piece of iron
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