Physics, 18.12.2019 23:31, scoutrussel4life
Aloop-the-loop has a circular arc, with a marble that can run along a track and traverse the entire inside of the loop. when the marble is precisely at the top of the inside loop, it has its minimum speed. ~v what do we know about the direction of the net force on the marble at this point, the top of the loop? a. the net force is instantaneously in the direction of the marble’s velocity b. the net force is instantaneously in the opposite direction to the marble’s velocity ~v. c. the net force is vertically downward. d. the net force is vertically upward
Answers: 1
Physics, 22.06.2019 05:10, zionnahl
Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.
Answers: 3
Physics, 22.06.2019 08:00, olejlund8073
If the force applied to an object remains constant, is more power needed for the object to move faster ? explain
Answers: 3
Physics, 22.06.2019 09:30, sdolina5
This is important. 1. which of the following is an si base unit for measuring length? (2 points) inch gram meter mole 2. which of the following units for distance is an si unit? (2 points) centimeter foot inch yard 3. which of the following tools should a scientist use to measure an object in meters? (2 points) electronic balance pan balance tape measure thermometer
Answers: 2
Aloop-the-loop has a circular arc, with a marble that can run along a track and traverse the entire...
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