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A free neutron (m = 1.6 x10-27 kg) as a mean life of 900s. What is the uncertainity in its mass?
Your are standing with your 1,116-kg car at a red light. The light turns green, and you speed up your car to 33 mph over a disatnce of 54 m. What is the total work done on your car from the moment you started from rest?
Describe the process in which soap "cleans" a drop of grease off a piece of clothing. Would using soap mixed with alcohol be more effective than using soap and water? Explain.
A new material is found to be superconducting below 116 K. How much resistance will a 40 mm long sample of this material have if it is at a temperature of 104.4 K while linked to a 3.2 V AC-power supply?
A 4.0-Kg particle is moving with a velocity 20.0 m/s in the +xdirection when it is at position x=1.0 For x>1.0 m, the particle experiences a single force F= (α-βx)i, where α=36.0N and β=52.0 N/m. Determine the work done by the force on the particle..
You have designed a rocket to be used to sample the local atmosphere for pollution. It is fired vertically with a constant upward acceleration of 18 m/s2. Compute the total time the rocket is in the air
Consider a resistor (R=1000 kΩ) and a capacitor (C=1mF) connected in series. Find the maximum charge on the capacitor
An object is solid throughout. When the object is completelysubmerged in ethyl alcohol, its apparent weight is 14.8 N. What is the volume of the object
A +6.00 µC charge is moving with a speed of 8.50 104 m/s parallel to a very long, straight wire. The wire is 5.00 cm from the charge and carries a current of 78.0 A in a direction opposite to that of the moving charge. Find the magnitude and directio..
When blue light of wavelength 440nm falls on a single slit, the first dark bands on either side of center are separated by 45.0degrees. Determine the width of the slit
A bat emits a sound whose frequency is 72.6 kHz. The speed of sound in air at 20.0 oC is 343 m/s. find what is the wavelength of the sound
Here are the familiar pair of carts connected by a spring. What are the relative speeds of the carts when the spring is released?
An airplane propeller spins at 1800 rpm (revolutions per minute). What is the propeller's angular velocity in rad/s
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