In San Francisco a very simple technique is used to turn around a cable car when it reaches the end of its route. The car rolls onto a turntable, which can rotate about a vertical axis through its center. Then, two people push perpendicularly on the car, one at each end as in the drawing. The turntable is rotated one-half of a revolution to turn the car around. If the length of the car is 9.0 m and each person pushes with a 185 N force, what is the net torque (in N*m) applied to the car?

Obtain the velocity of each block just before the collision : Two blocks of masses m1 = 2.00 kg and m2 = 4.25 kg are each released from rest at a height of y = 5.20 m on a frictionless track, obtain the velocity of each block just before the collision |

Define how does this force compare to weight of an electron : The human eye can detect light intensities as small as about 8 10-23 W/m2. The corresponding electric field amplitud is 2.5E-10N/C, How does this force compare to the weight of an electron |

Implement the controller using mechanical components : Analyze the given plant for its performance in time and frequency domains (transient response, Routh-Hurwitz test, root locus, Nyquist criterion, Bode plot, Nichols chart). |

Obtain the magnitude of the vertical component of force : A 4.0-m-long iron bar of uniform cross section is held perpendicular to the wall by a wire from the end of the bar to the wall, what is the magnitude of the vertical component of force produced by the wall |

What is the net torque applied to the car : In San Francisco a very simple technique is used to turn around a cable car when it reaches the end of its route. The car rolls onto a turntable, what is the net torque (in N*m) applied to the car |

Calculate what is the speed of the water : Water flowing through a 1.8cm-diameter pipe can fill a 300L bathtub in 6.4 min. What is The speed of the water in m/s |

Find what is the total momentum of the system : two objects are moving in the xy plane . object a has a mass of 3.5 kb and has a velocity Va of 5.3 m/s at an angle of 30 degrees from the x-axis and object b has a mass of 1.9 kg, What is the total momentum of the system |

Calculate the shear modulus of aluminum : The base of an aluminum block, which is fixed in place, measures 90 cm by 90 cm. The shear modulus of aluminum is |

Calculate the focal length of the rearview mirror : The right-side rearview mirror of Mike's car says that objects in the mirror are closer than they appear. What is the focal length of the rearview mirror |

## What lens power should be prescribedA person sees clearly wearing eyeglasses that have a power of -5.00 diopters, If the person wants to switch to contact lenses placed directly on the eyes, what lens power should be prescribed |

## The pulleys and the incline are frictionlessThe systems shown below are in equilibrium with m = 6.10 kg and θ = 35.0°. If the spring scales are calibrated in newtons, what do they read? Ignore the masses of the pulleys and strings and assume the pulleys and the incline are frictionless. |

## What is the speed of the projectileA spaceship, traveling at 0.56c towards a stationary enemy station, What is the speed of the projectile relative to the station |

## Find the torque on the dipoleAn electric dipole consists of charges +e and -e separated by 0.76 nm. It is in an electric field of strength 2.50 10^4 N/C, What is the torque on the dipole when it is perpendicular to the field |

## What is the maximum value of the blocks velocityA 4.5- kg block oscillates with an amplitude of 0.070 m on a light spring of constant k = 29.0 N/m. What is the maximum value of the block's velocity |

## How far has the car goneA car starts from rest and travels for 4.92 s with a uniform acceleration of +1.49 m/s2. How far has the car gone |

## How long does it take the train to reach the batmobileA train is traveling at 100 m/s. The engineer applies the brakes because he sees the Batmobile stuck on the tracks ahead. How long does it take the train to reach the Batmobile |

## Calculate the average force exerted on the carA 970- kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00s when it reaches a speed of 25.0m/s. What is the average force exerted on the car during this time |

## How high does the rocket goA model rocket is fired upward. The rocket's average initial acceleration is 38.5 m/s2 until the fuel burns out in 0.825 s. How high does the rocket go |

## How many electrons are there in a tablespoonHow many electrons are there in a tablespoon. Find the tension in each cable. right cable and left cable. |

## Determine the radius of the circleThree point charges, -6.05 10-9 C, -9.75 10-9 C, and +7.50 10-9 C, are fixed at different positions on a circle. What is the radius of the circle |

## Explain what would be the frequency of vibrationsA baseball pitcher throws a fastball at a speed of 35m/s. The acceleration occurs as the pitcher holds the ball in his hand and moves it throughout an almost straight-line distance of 3.7 m. estimate the acceleration, assuming that it is constant .. |

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