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Q1. A piece of rock weighs 298 N in air and has an apparent weight of 214 N when suspended in water.
a. What is the volume of rock?
b. What is the density of rock?
Q2. Small steel ball bearing with a mass of 17 g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.39m. Calculate the horizontal distance ball would travel if the same spring were aimed 39 deg from the horizontal.
A 10.60 weather rocket generates a thrust of 220. The rocket, pointing upward, is clamped to the top of the vertical spring. The bottom of the spring, whose spring constant is 450, is anchored to the ground.
Sketch the shear force and bending moment diagram and Verify that the support reactions are correct.
A person can jump a horizontal distance of 2.82m on Earth, where the free-fall acceleration, g = 9.81 m/s2. How far might the person jump on the moon, where the free-fall acceleration is g/6? How far could the person jump on Mars where the accelerati..
Light passes through a 230 lines/mm grating and is observed on a 1.0m wide screen located 1.3m behind the grating. Three bright fringes are seen on both sides of central maximum.
What are the rocket's horizontal range, greatest height, and total time of flight. The magnitude of the torque of this force on the door with respect to the hinge is most nearly .
What is the wavelength of the light in the glass
A 61.0 kg skier encounters a dip in the snow's surface that has a circular cross section with a radius of curvature of 12.0 m .If the skier's speed at point A is 7.50 m/s (before entering dip), what is the normal force exerted by the snow on the skie..
When he reaches equator, the sphere is rotating at how many rpm. A car takes 9 s to go from v = 0 to v = 55 m/s at about constant acceleration.
A car of mass M = 800kg travelling at 50km/hour enters a banked turn covered with ice. The road is banked at an angle 20degrees, and there is no friction between the road and the car's tires.
A meter long 1.0 cm diameter nichrome heater wire is associated to a 12V battery. What is the magnetic field strength 1.0 cm away from the wire.
If air resistance & other effects are ignored how far away did the shell hit.
What is an average speed of this train
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