Recall from thermodynamics that if an object of mass m absorbs an amount of energy Q, its temperature will increase according to Q=mc(Tfinal-Tinitial), where c is th specific heat of the material. A 30g aluminum cup contains 100g of water at 20 degrees C. Energy is added to the water at a rate of 2.00 W for 20 minutes. What is the final temperature of the water

What is the magnitude of the component of the magnetic field : The magnetic force on a straight 0.31 m segment of wire carrying a current of 4.5 A is 1.5 N. What is the magnitude of the component of the magnetic field that is perpendicular to the wire? Answer in units of T. |

Proton traveling to right along x-axis enters a region : A proton traveling to the right along the x-axis enters a region where there is a magnetic field of magnitude 3.7 T directed upward along the y-axis. The charge on a proton is 1.60×10?19. If the proton experiences a force of 3.6 × 10?12 N, find its s.. |

What is the length of the wire that is inside magnetic field : The magnetic force acting on a wire that is perpendicular to a 3.7 T uniform magnetic field is 6.4 N. If the current in the wire is 5.0 A, what is the length of the wire that is inside the magnetic field? Answer in units of m. |

Loop detector-increases downward component of manetic field : A truck drives onto a loop detector and increases the downward component of the magnetic field within the loop from 1.2 x 10^- 5 T to the larger value B in 0.38 s. The detector is circular, has a radius of 0.67 m, and consists of three loops of wi.. |

What is final temperature of water-recall from thermodynamic : Recall from thermodynamics that if an object of mass m absorbs an amount of energy Q, its temperature will increase according to Q=mc(Tfinal-Tinitial), where c is th specific heat of the material. |

An electron traversing a resistor in an electronic circuit : An electron traversing a resistor in an electronic circuit has no more kinetic energy when it exits the resistor than it had when it entered the resistor; however, this electron certainly has lost electrical potential energy. Explain this paradox |

What is the escape speed on a spherical asteroid : What is the escape speed on a spherical asteroid whose radius is 510 km and whose gravitational acceleration at the surface is 3.3 m/s2? How far from the surface will a particle go if it leaves the asteroid's surface with a radial speed of 1000 m/s? .. |

What is the radius of the planet : A 20 kg satellite has a circular orbit with a period of 2.3 h and a radius of 6.5 106 m around a planet of unknown mass. If the magnitude of the gravitational acceleration on the surface of the planet is 7.6 m/s2, what is the radius of the planet? |

Interferometer is used with helium-neon laser of wavelength : A michelson interferometer is used with a helium-neon laser of wavelength 628.8 nm. A glass-walled chamber of interior length 1.005 cm is placed in one of the beams and the position of the mirror is adjusted until bright light is observed at the dete.. |

## Calculate the impulse on the balla 1.5 kg ball falls onto a floor. just before it strikes the floor its velocity is 12 m/s. the ball bounces up with a velocity of 10 m/s. find the impulse on the ball |

## What is the balls speed as it leaves the roofAt the instant a ball rolls off a rooftop it has a horizontal velocity component +12.0m/s of and a vertical component (downward) of 10.0m/s, What is the ball's speed as it leaves the roof |

## Illustrate what is the legal source of the industry legalIllustrate what is the basis for the industry's legal duty to the surrounding community? In other words, illustrate what is the legal source of the industry's legal duty? |

## Find the magnitude of the total electrostatic forceA particle with charge ?2 µC is located on the x-axis at the point 4 cm, What is the magnitude of the total electrostatic force on a third particle with a charge of -2 µC placed on the x-axis at -2 cm |

## Find pressure exerted on the floor by each leg of the chairWhat is the maximum speed with which a 1060kg car can round a turn of radius 75m on a flat road if the coefficient of static friction between tires and road is 0.80. |

## Determine vertical height does the block reachA 1.2 kg wood block is launched up a wooden ramp that is inclined at a 24° angle. The block's initial speed is 13 m/s. What vertical height does the block reach above its starting point |

## Determine the number of capillaries in the human bodyThe aorta carries blood away from the heart at a speed of about 40 cm/s and has a radius of approximately 1.1 cm. determine the approximate number of capillaries in the human body |

## Compute the centripetal accelerationA wheel has an initial angular velocity of (-24rad/s). If it atteins an angular velocity of (3rad/s) in time of 2 min, copmpute the centripetal acceleration |

## How fast the air flow over the upper surface of the winghow fast the air flow over the upper surface of the wing. What is the coefficient of kinetic friction between the box and the floor. |

## Calculate the value of the batterys internal resisanceA battery with \Epslion 12.0 V delivers a termal voltage of 11.2 V to a 45.0 V to a 45.0 \Omega load resistor. Calculate The value of the battery's internal resisance |

## Compute the angular velocity of the sphereA solid, uniform sphere of mass 2.0 kg and radius 1.7 m rolls without slipping down an inclined plane of height 6.7 m. What is the angular velocity of the sphere |

## Which driveway will be safer to park inA 40-kg girl is bouncing on a trampoline. During a certain interval after leaving the surface of the trampoline, kinetic energy decreases to 240J from 470J. How high does she rise during this interval? Avoid air resistance. |

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