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Question: 1. A rock weighs 150 N in air and has a volume of 0.00336 m3. What is its apparent weight when submerged in water? The acceleration of gravity is 9.8 m/s
2. If it is submerged in a liquid with a density exactly 2.3 times that of water, what will be its new apparent weight?
Answer in units of N.
A dentist's drill starts from rest. After 7.28 s of constant angular acceleration it turns at a rate of 31540 rev/min.Find the drill's angular acceleration.Answer in units of rad/s 2.
Two forces act on a car. Force A is 120 N, west and force B is 200 N at 60° N of W. What is the direction of the resultant force on the car
An electromagnetic wave with a frequency of 7.20×10^14Hz propagates with a speed of 2.30×10^8m/s in a certain piece of glass. Find the dielectric constant for glass at this frequency
Illustrate what management's role in addressing these challenges. Illustrate what type of information technology would increase production?
Gold, which has a density of 19.32 g/cm3, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber. If, instead, the gold is drawn out into a cylindrical fiber of radius 2.300 m, what is the length of the fiber?
A man is dragging a trunk up the loading ramp of a mover's truck. The ramp has a slope angle of 20.0 degrees, and the man pulls upward with a force.
What is the weight (in Newtons) of a 90 kg man at the surface of Jupiter (assuming he had a way to stand there)?
The barricade at the end of subway line has a large spring designed to compress 2.00 m when stopping a 1.00 x 10^5 kg train moving at 0,500 m/s. What speed would the train be going
Particle X has a speed of 0.960 c and a momentum of 1.70×10-18 kgm/s. What is the mass of the particle? What is the rest energy of the particle? What is the kinetic energy of the particle?
A tourist in Yellowstone National Park takes a photograph of a buffalo that is 40 meter away and 2.2 meter tall. find how large is the image of the buffalo on the film
A 1400kg sedan goes through a wide intersection traveling from north to south when it is hit by a 2400kg SUV traveling from east to west. How fast was sedan traveling just before the collision
A generating station is producing 1.90*106 W of power that is to be sent to a small town located 7.0 km away. Each of the two wires that comprise the transmission line has a resistance per kilometre of length of 5.00*10-2Ω/km. Discover the power used..
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