A 50.0 g sample of carbon taken from the femur bone of a skeleton is found to havea carbon -14 decay rate of 410 decays/min. Find the age of the bone.

Compute the index of refraction of the unknown liquid : A ray of light in air makes an angle of incidence of 30.2 as it enters an unknown liquid. the refracted ray in the fluid meassured to be 22.5. compute the index of refraction of the unknown liquid |

Forms of contracting : Forms of Contracting |

What is the value of this annuity five years from now : what is the value of this annuity five years from now? What is the value three years from now? What is the current value of the annuity? |

Determine what is the height of the tower : However, nothing is available with which to measure the length of the rope. Therefore, at the bottom of the rope a small object is attached so as to form a simple pendulum that just clears the floor. |

Find the age of the bone : A 50.0 g sample of carbon taken from the femur bone of a skeleton is found to havea carbon -14 decay rate of 410 decays/min |

Mixed integer linear programming model : The Livewright Medical Supplies Company has a total of 12 salespeople it wants to assign to three regions - the South, the East, and the Midwest |

What is the yield to maturity of this bond : Suppose that you have a bond that will pay $100,000 at maturity, does not make any coupon payments, and is currently selling for 96207.29. What is the yield to maturity of this bond? |

What problem was identified by the researcher : What ‘problem' was identified by the researcher, what is the purpose statement and what is the research question? |

What is the amplitude of resulting simple harmonic motion : A 2.19 x 10-2-kg block is resting on a horizontal frictionless surface and is attached to a horizontal spring whose spring constant is 120 N/m. The block is shoved parallel to the spring axis and is given an initial speed of 10.5 m/s |

## What is the amplitude of vibrationA 0.50-kg object is attached to an ideal massless spring of spring constant 20 N/m along a horizontal, frictionless surface. The object oscillates in simple harmonic motion and has a speed of 1.7 m/s at the equilibrium position. |

## Determine the mass of the central black holeObservations of a certain galaxy show that stars at a distance of 16 pc from the center of the galaxy orbit a central supermassive black hole at a speed of 200 km/s |

## Throws a rock straight up with the same speedTo test the deflection of the uniform 200-lb beam the 121-lb boy exerts a pull of 36 lb on the rope rigged. Calculate the force supported by the pin at the hinge O. |

## What is the initial velocity of the kickA football kicked off at an angle 20° from the ground reaches a maximum height of 4.7 m. What is the initial velocity of the kick. |

## Compute the fraction of the light intensity is transmittedtwo polarizers are oriented at 72 degress to one another. Unpolarized light falls on them. What fraction of the light intensity is transmitted |

## Two point charges are on the y-axisA copper telephone wire has essentially no sag between poles 20.5 meters apart on a winter day while the temperature is -15.5° C. How much longer is the wire on the summer day when the temperature is 27.0° C. |

## Determine the tension in the left segment of the stringConsider a string with length 36 cm. The two ends are attached to the ceiling, separated by distance 30.0 cm. A 1 kg mass is attached to the string at distance 15 cm from the left end. Then the mass hangs suspended in Earth's gravity. (a) Determin.. |

## How much current in amps must the motor drawAn electric motor operates at 6 volts. In order to lift a mass of 1 kilogram a distance of 2 meter in 3 seconds, how much current in amps must the motor draw? (Assume the motor is 100% efficient.) |

## Find the maximum heightA rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 34.3m/s2, Find the maximum height ymax reached by the rocket |

## How to generate a reaction forceObjects A and B are on a horizontal surface. Object A exerts a force on object B, and, in accordance with the laws of motion, generates a reaction force. |

## What is the strength of the fieldA proton travels with the speed of 8.34×105 m/s at an angle of 32.3° with the direction of a magnetic field. The field exerts a force of 3.00×10-17 N on the proton. What is the strength of the field. |

## Why the stamen are held by the petals in a bent positionThe bunchberry flower has the fastest-moving parts ever seen in a plant.at first , the stamen are held by the petals in a bent position, storing elastic energy like a coiled spring. |

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