2 crewmen pull a raft, 1 crewman pulls with a force of 130 newtons at 34 degreees relative to the forward position on the raft. the 2nd crewman on the opposite side pulls at 45 degrees. What force should the 2nd crewman pull so that the net force of the 2 is forward

Predict torque for current-pearson correlation coefficient : Pearson correlation coefficient was 0.61.a. Was the correlation coefficient significantlydifferent from zero? Use α = 0.05.b. Predict the torque for a current equal to 50 mA. |

Find out distance d at which the block hits the floor : A 15 g bullet traveling at 485 m/s strikes a 0.9 kg block of wood that is balanced on a table edge 0.7 m above ground. If the bullet buries itself in the block, find out distance D at which the block hits the floor. |

Cyclist word problem on linear equations : A cyclist traveled at a rate of 32 mph to visit a nearby town. The cyclist averaged 10 mph on the return trip. If the round trip took 6.3 hours, find the distance to the nearby town. |

Find the probability that in a random sample : A glass manufacturer finds that one in every 1000 items produced is warped . What is the probability that in a random sample of 5000 glass items there will be |

Illustrate what force should the crewman pull : 2 crewmen pull a raft, 1 crewman pulls with a force of 130 newtons at 34 degreees relative to the forward position on the raft. the 2nd crewman on the opposite side pulls at 45 degrees. Illustrate what force should the 2nd crewman pull so that the.. |

Expected postretirement benefit obligation : What is the expected postretirement benefit obligation at the end of 2011? |

Explain how far will the car travel before it overtakes : At the instant the car begins to accelerate, a truck with a constant velocity of 21 m/s passes in the next lane. Explain how far will the car travel before it overtakes the truck? |

Find out the velocity of rain with respect to follow frames : The traces of the rain on the side windows of the car make an angle of 60.0 with the vertical. Find out the velocity of the rain with respect to the following reference frames. |

How many card holders be sampled for each account in sample : The standard deviation is thought to be $400. How many card holders should be sampled? Your company charges a set dollar amount for each account in the sample. |

## How many molecules from bathtub of archimedes are thereLegend has it that, many centuries ago, Archimedes jumped out of his bathtub and ran across town naked screaming "Eureka!" after he solved an especially difficult problem. |

## What is the centripetal acceleration of the referenceA computer disk is 8.0 in diameter. A reference dot on the edge of the disk is initially located at the disk accelerates steadily for 0.50, reaching 2000. |

## What is the displacement of the car from the point of originAn airplane starting from airport A flies 304 km east, then 364 km at 35.5° west of north, and then 150 km north to arrive at last at airport B. |

## Evaluate at what angle must they be launched to just grazeThe ceiling is of height 3.5 m, and the balloons are launched at a velocity of 10 m/s. The acceleration of gravity is 9.8 m/s2. Evaluate at what angle must they be launched to just graze the ceiling? |

## What is the average force his feet exert on the groundTreating our rigid legged friend as a particle, what is the average force his feet exert on the ground as he slows down. |

## How fast was the bullet going at firstAn Olympic skier moving at 20m/s down a 30o slope encounters a region of wet snow and slides 145 m before coming to a stop. What is the coefficient of friction between skis and snow if the combined mass of the skier and skis is 55 Kgm. |

## Determine the amount by which the stars thermal radiationDetermine the amount by which the star's thermal radiation increases the entropy of the universe each second. Assume that the star is a perfect blackbody, and that the average temperature of the rest of the universe is 2.73 K. Do not consider ther.. |

## How tall is the pencil imageWhen a 5.5 cm long pencil is arranged perpendicular to a convex mirror's optical axis at a distance of 29 cm from the mirror, its image is 2.8 cm tall. (a) What is the mirror's focal length? (b) How tall is the pencil's image if the pencil is move.. |

## By how much will the silk stretchOrb spiders make silk with a typical diameter of 0.15 .A typical large orb spider has a mass of 0.50 . If this spider suspends itself from a single 12-cm-long strand of silk, by how much will the silk stretch? |

## What is the resulting compressional force on the earthWhat is the resulting compressional force on the Earth. what is the acceleration of a rock at top of its trajectory when it has been thrown straight upward. |

## Illustrate what is the acceleration of the center of massTreat the ball as a uniform, solid sphere, ignoring the finger holes. Illustrate what is the acceleration of the center of mass of the ball? |

## What is the complete work on the crateA factory worker pushes a 30kg crate a distance of 4.50 meters along a level floor at constant velocity by pushing it downward at an angle of 30degrees below the horizontal. The coefficient of kinetic friction between the crate and the floor is 0... |

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