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Show that when a nucleus decays by decay, the totalenergy released is equal to (Mp -Md -2Me) where Mp and Md are the masses of the parentand daughter atoms (neutral), and Me is the mass of anelectron or positron.
Why is the electron mass doubled? Is this because it's accounting for the neutrino mass? Ithought neutrinos had negligible mass.
A spaceship ferrying workers to Moon Base I takes a straight-linepath from the earth to the moon, a distance of about 384,000 km. What is the maximum speed attained
a uniform rod of mass 100 g and length 50.0 cm rotates in a horizontal plane about a fixed vertical frictionless pin
A daredevil is shot out of a cannon at 45.0° to the horizontal with an initial speed of 26.0 m/s. At what height above the cannon should the net be placed in order to catch the daredevil
200 mL of water at 20.0 C is placed in the freezer compartment of a refrigerator with a coefficient of performance of 4.00. How much heat energy is exhausted into the room
A person exerts a horizontal force of F = 190 N in the test apparatus. (h of arm = 0.34 m. And h of flexor muscle= .054 m) Find the horizontal force M that his flexor muscle exerts on his fore arm.
What is the mean free path for the molecules in an ideal gas when the pressure is 100 kPa and the temperature is 300 K given that the collision cross-section for the molecules of that gas is 2.0 × 10-20 m2? Boltzmann's constant is k = 1.38 × 10-23..
Two pendula of equal length b and equal masses m connected by a spring of force constant k. Write the Lagrangian for the system, and use it to derive the equations of motion of the system
A capacitor with air between its plates is charged to 70 V and then disconnected from the battery. When a piece of glass is placed between the plates, the voltage across the capacitor drops to 50 V. What is the dielectric constant of this glass?
A block with a weight of 3.0 N is at rest on a horizontalsurface. A 1.0 N upward force is applied to the block by meansof an attached vertical string. What are the (a) magnitude of and(b) direction of the force of the block on the horizontalsurface?
Young's modulus of nylon is 3.7 × 109 N/m2. A force of 6.0 × 105 N is applied to a 1.5-m length of nylon of cross sectional area 0.25 m squared
A potential energy function for a two-dimensional force is of the form U = 3.89x3 y - 5.96x. Calculate the force that acts at the point (1.28m,1.17m). Enter the x-component first and then the y-component.
Explain the sign of the acceleration and describe in words how the thread changes the velocity of the spider. would also like to know how to get to the answer can any one explain this to me in english?
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