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A closed ended manometer is used to measure the pressure in a tank of gas. The working fluid for the manometer has a specific gravity of 1.47. what is the gauge pressure (in Pa) in the tank
Consider a large chemical storage tank that is 100 ft in diameter and 25 feet tall. What is the force exerted by the fluid on the base of the tank
How many grams of gasoline are required to impart a velocity of 26 meters/sec (60 miles per hour) using the same engine and neglecting losses that may be higher at the higher velocity
A woman stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.75 of her regular weight. Calclate the acceleration
how much tension must a cable withstand if it is used to accelerate a 20.0 kg car vertically upward at 0.70 m/s^2
Young's modulus for earth can be approximated by 5.5*10^5 MN/m^2 and the corresponding shear modulus by 2.0*10^5 MN/m^2. How far from the station did the earthquake take place
The moon is slowly getting further from the earth by about 2 inches every year. At present, it takes the moon 27.321 days to orbit the earth. What is velocity in present day
Estimate the average force exerted by a shot-putter on a 7.0 kg shot if the shot is moved through a distance of 2.8 m and is released with a speed of 13 m/s
Two small charges with a mass of 1.0 g each are connected by 2.0-cm-long insulating rod of negligible mass. Obtain the moment of inertia around the center of mass
A box of unknown mass begins at the base of a 30 degree ramp with an initial velocity of 10.0 m/s. calculate the maximum distance up the ramp which the box will reach
An electron and a proton are accelerated starting from rest through a potential difference of 10 million volts. Find the momentum (in MeV/c) and the kinetic energy (in MeV) of each
A new plant oil is discovered that is easy to recover from the plant and it might be a useful fuel. A question is the energy density of the fuel. Calculate the energy-density of this "new fuel"
A spring stretches 0.05 m when a 0.3 kg mass is suspended from it. find the charecteristic frequency of this mass on the spring
A woman with her arms outstretched has a moment of inertia of 2 kg m^2. She rotates on a stool at an angular velocity of 6rad s^-1. what is her angular velocity
A rope of mass M and length L0 lies on a frictionlesstable with a length 'l' initially hanging ove theedge. How fast is the rope moving
Your car achieves 30 miles per gallon and weighs 3000 pounds. What approximately is the percentage of the energy spent on the journey that actually goes to "moving you
Assume that a car can operates on either 100% gasoline or 100 % ethanol, with no discernable difference in performance. How far can the car travel along the same route on a full tank of ethanol
A block of mass A=.75kg moves with a constant speed v0=5.2 m/s and approaches another block which is at rest and attached to an ideal spring with the force constant k=2.5 N/m. Determine the amplitud
A point charge of 9 µC is located at x = -3.0 cm, and a second point charge of -13 µC is located at x = +4.0 cm. Where should a third charge of +6.0 µC be placed
An object is dropped from a height of 55 m above ground level. Determine the final speed at which the object hits the ground
A rectangle has an area of 36.38 cm2. When both the length and width of the rectangle are increased by 1.60 cm, Calculate the length of the shorter of the two sides of the initial rectangle
Sheena can row a boat at 3.03 mi/h in still water. She needs to cross a river that is 1.10 mi wide with a current flowing at 1.55 mi/h. How long does it take her to cross the river
Two small identical conducting spheres are placed with their centers 0.70 m apart. One is given a charge of 1.2 x 10^-8 C, Find the electrostatic force exerted on one sphere by the other
The nucleus of 8Be, which consists of 4 protons and 4 neutrons, is very unstable and spontaneous breaks into two alpha particles, what is the force between the two alpha particles when they are 7.00
Two point charges are on the y axis. A 5.20-µC charge is located at y = 1.25 cm, and a -2-µC charge is located at y = ?1.80 cm. Find the total electric potential at the origin