a stel cable is used to keep a 2 m long 10 kg bar horizontal. one end of the bar is mounted to a wall. the other is connected to the cable, which makes a 30 degree angle with the bar. a 20 kg sign, 25 cm wide is then hung from the end of the bar. what tensional force now acts on the bar through the cable?

Determine the force that the hinge puts on the gate : A rectangular gate 6 ft tall and 5 ft wide in the side of an open tank is held in place by the force F as indicated in the figure. The weight of the gate is negligible, and the hinge at O is frictionless. |

What is the maximum speed attained by the person : A person bounces up and down on a trampoline, while always staying in contact with it. What is the maximum speed attained by the person |

Find the optimal solution by using the graphical solution : Find the optimal solution by using the graphical solution technique and what is the value of the objective function? What are the values of all variables? |

What are the main differences between equity and bond : How do you justify the fact that share value is determined by PV of all future dividends but most investors don't need to hold the share forever to profit from such investment? |

What tensional force now acts on the bar through the cable : a stel cable is used to keep a 2 m long 10 kg bar horizontal. one end of the bar is mounted to a wall. what tensional force now acts on the bar through the cable |

List three intensive and two extensive properties of apple : an apple weighs 60g and has a volume of 75cm^3 in a refrigerator at 8 degrees C. What is the apple's density List three intensive and two extensive properties of the apple. |

What is the project coefficient of variation : Cheng Inc. is considering a capital budgeting project that has an expected return of 25% and a standard deviation of 30%. What is the project's coefficient of variation? |

What ration of lengths will cause the maximum shear stress : A solid circular shaft AC of total length L=L1+L2 is fixed against rotation at ends A and C and is loaded by a tourqe T_b at joint B. If the diameter of the two segements of the shaft are in ratio d2/d1 |

Determine the final velocity of the skateboard : A boy of mass 49.4 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.3 m/s. Find the final velocity of the skateboard |

## What is the final temperature of the coffeeTwo sounds differ in intensity level by 4.62 dB. What is the ratio of the intensities of these two sounds? (Let I1 be the intensity of the first (higher) sound and I2 be the intensity of the second (lower) sound.) |

## By what percent does the period of oscillation changeAt a large business, employees must report to work at 7:30 A.M. The arrival times of employees is approximately symmetric and mound-shaped with mean 7:22 A.M. and standard deviation 4 minutes. |

## Find range of speeds can a car safely make the curveA curve of radius 65 m is banked for a design speed of 100 km/h. If the coefficient of static friction is 0.30 (wet pavement), at what range of speeds can a car safely make the curve |

## What is the period of the waveA wave has a speed of 500.0 m/s and a wavelength of 4.9 m. What is the frequency of the wave? What is the period of the wave? |

## Find out the force exerted by the rope on the bucketA 51 crate, starting from rest, is pulled across a floor with a constant horizontal force of 250 . For the first 11.5 the floor is frictionless, and for the next 11.5 the coefficient of friction is 0.16. what's the final speed. |

## In which direction and how far should the crew flyyou are on a plane that leaves DIA and flies 170 km at 68 east of north and then changes direction to fly 230 km at 48 south of east, after which it makes an emergency landing in a pasture next to a large herd of buffalo. |

## What is the greatest emf outputA student makes a simple generator by using a single square loop 24 cm on each side. The loop is then rotated at a frequency of 60 Hz in a magnetic field of 0.044 T. |

## Calculate electric potential at originA charge of -16 x 10 ^-6 C , Q1, is fixed on x axis at 4 m and a charge of + 9x 10^-6, Q2, is fixed at +3 m on y axis Show E1 and E2 vector due to each charge, Calculate electric potential V at origin |

## How fast it moves after the bullet emergesFour charges are placed at the vertices of a square, centered at the origin. If each side of the square has a length of 0.224 m, what is the strength and direction of net electric field at the origin? Express your answer in terms of the charge ma.. |

## How much heat was produced by electric motorAn electric motor with a power of 3W is used to lift a .2 kg mass a height of 0.5 meters in 3.0 seconds, since total energy must be conserved |

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