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Q. An occupant of a car has a chance of surviving a crash if the deceleration all through the crash is not more than 30.00 g. Approximation the force on a 72 kg person decelerating at this rate.
Q. Estimate the deflection of the cylinder caused by the mass in the system. The mass causes a force of mg=50 kN. Evaluate results using oil and water as fluid. There is no free air in the fluid. The piston diameter is 150 mm and volumes: Vs=3.0 × 10-3 m3, Vl=0.60 × 10-3 m3, Vp=0.9 × 10-3 m3. The cylinder, hose and pipe are completely rigid Fluid properties Oil Water.
Determine the coefficient of kinetic friction between the block & the table.
A sound source emits sounds of frequency 190 Hz that travel by still air at 340 m/s. The listener moves at 75 m/s relative to still air toward the stationary source. What is the wavelength of the sound between source and listener.
An object with a height of 42 cm is placed 2.2 m in front of a concave mirror with a focal length of 0.45 m. Determine the location and magnification of the image produced by the mirror, using the mirror and magnification equations.
A capacitor C stores charge Q when there is a potential difference V. When a potential difference of V + 12.5Volts is used, an extra 45.50 microC of charge is stored. What is the capacitance C.
Two force vectors point in opposite directions and have the same magnitude. If their magnitudes are 36.5 Newton’s, then what is the magnitude of their sum?
Compute the number of g's a person would experience if she could stand on the equator of Jupiter. Use following astronomical data for Jupiter: mass = 1.9 multiplied by 1024 kg, equatorial radius = 7.10 multiplied by 104 km, rotation period 9 hr 55 mi..
assume the roller coaster (h1 = 32 m, h2 = 11 m, h3 = 20) passes point A with a speed of 3.50 m/s. If the average force of friction is equal to one fifth of its weight, with what speed will it reach point B? The distance traveled is 30m.
What torque must the fireman exert on the hose? That is, what is the rate of change of angular momentum of water.
Which of the following must be true if we are to infer (calculate) a star's luminosity directly from the inverse square law for light.
A bullet is fired vertically into a 1.3kg block of wood at rest directly above it. If the bullet has a mass of 29g and a speed of 470m/s, how high will the block rise after bullet becomes embedded in it.
An emf is induced in a conducting loop of wire 1.16 m long as its shape is changed from square to circular.
A railroad car of mass 40900 kg moving at 3.35m/s collides and couples with two railroad cars,each of the same mass as the single car and moving in the same direction at 1.53m/s. what is the speed of three cars after the collision.
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