A proton (mass 1 ) is shot toward an unknown target nucleus at a speed of 2.75×106 . The proton rebounds with its speed reduced by 25 while the target nucleus acquires a speed of 3.01×105 . What is the mass, in atomic mass units, of the target nucleus?

Speed of the projectile is approximately : A block that has a mass M = 4.25 kg is hanging at rest on a light string. A projectile with a mass m = 250 g moving horizontally strikes M and sticks to it. The block and its projectile swing up and the center of mass rises a distance h = 12.0 cm. Th.. |

What is the breaking strength in newtons of the string : A string under a tension of 60.0 N is used to whirl a rock in a horizontal circle of radius 2.70 m at a speed of 20.5 m/s on a frictionless surface as shown in the figure below. As the string is pulled in, the speed of the rock increases. When the st.. |

Disturbed by speeding cars outside his workplace : Disturbed by speeding cars outside his workplace, Nobel laureate Arthur Holly Compton designed a speed bump (called the "Holly hump") and had it installed. Suppose a 1 800-kg car passes over a hump in a roadway that follows the arc of a circle of rad.. |

Squids rely on jet propulsion to move around : Squids rely on jet propulsion to move around. A 1.7 squid drifting at 0.50 suddenly expels 0.11 of water backward to quickly get itself moving forward at 2.4. If drag is ignored over the small interval of time needed to expel the water (the impulse a.. |

What is the mass in atomic mass units of the target nucleus : A proton (mass 1 ) is shot toward an unknown target nucleus at a speed of 2.75×106 . The proton rebounds with its speed reduced by 25 while the target nucleus acquires a speed of 3.01×105 . What is the mass, in atomic mass units, of the target nucleu.. |

Light of newtons 2nd law-what is the elevators acceleration : An elevator is rising at a constant speed, subject only to the tension (T) and gravitational (W) forces exerted on it by the cable above and the Earth below. As it rises, which force (if either) has a greater magnitude, T or W? Explain. |

What is the direction of the waters acceleration : Draw a free body diagram of a container of water that you are holding, you walk with the container at a constant speed and then stop abruptly. Draw arrows for the force of gravity, the normal force (your hand pushing up on the container) and the s.. |

Total electric potential energy of three-particle system : In the quark model of fundamental particles, a proton is composed of three quarks: two "up" quarks, each having charge +2e/3, and one "down" quark, having charge -e/3. Suppose that the three quarks are equidistant from one another. Take the distance .. |

Calculate the induced emf in the coil : A 25-turn circular coil of radius 3.20 cm and resistance 1.00 ? is placed in a magnetic field directed perpendicular to the plane of the coil. The magnitude of the magnetic field varies in time according to the expression B = 0.010 0t + 0.040 0t2, wh.. |

## Calculate how fast are the ions movingSingly ionized (one electron removed) atoms are accelerated and then passed through a velocity selector consisting of perpendicular electric and magnetic fields. How fast are the ions moving when they emerge from the velocity selector |

## What is the total charge on the negative side of the slabAn electrically neutral thin, square metal slab, measuring 4.80cm on a side is placed in a uniform external field, What is the total charge on the negative side of the slab |

## What volume would this air occupy at stpA 16 cm-diameter compressed-air tank is 30 cm tall. The pressure at 20 degrees C is 140 atm. What volume would this air occupy at STP |

## By how much do the two clocks differTwo clocks are synchronized. One is placed in a race car that drives around a 2.0-km-diameter track at 130 m/s for 24 hours. by how much do the two clocks differ |

## What is the maximum speed of a point on the stringA wave on a string is described by D(x,t)=(2.00cm)sin[(12.57rad/m)x?(638rad/s)t],where x is in m and t is in s. The linear density of the string is 5.00g/m, What is the maximum speed of a point on the string |

## Find how many minutes can it operate between chargingsTrucks can be run on energy stored in a rotating flywheel, with an electric motor getting the flywheel up to its top speed of 611 rad/s. how many minutes can it operate between chargings |

## What is closing equilibrium temperature of the tin-waterWhat is closing equilibrium temperature of the tin-water |

## Compute the outward flux through your bodys back surfaceYou stand in the earth's magnetic field, directly facing it's horizontal component ( in other words, facing magnetic south). Compute the outward flux through your body's back surface |

## What is the magnitude of the cats centripetal accelerationA cat rides a merry-go-round while turning with uniform circular motion. At time t1 = 2.00 s, What is the magnitude of the cat's centripetal acceleration |

## Find the magnitude of the tension in the connecting cordA mass m2 = 1.8 kg, on a 39.4° incline, is connected to a mass m1 = 5.2 kg, on a horizontal surface. find the magnitude of the tension in the connecting cord |

## What is the specific heat of the mushroomAn Italian chef, who is very scientific in her approach to cooking, measures the specific heat of a porcini mushroom by placing it in a calorimeter filled with 0.678 kg of olive oil at 13.2°C. What is the specific heat of the mushroom |

## What force is exerted by the biceps muscleMost of the motion generated by joints in the human body are examples of levers. An example of a third class lever is the forearm; what force is exerted by the biceps muscle |

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