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Recent questions tagged introductory-physics
An equilateral triangle ABC is cut from a thin solid sheet of wood.D,E,F are the midpoint of sides and g is the center of the triangle. The moment of inertia of the traingle about an axis passing through G and perpendicular to the plane of triangle is I.if smaller triangle DEF is removed from triangle ABC the moment of inertia of the remaining figure is
asked
Nov 18, 2022
in
Physics & Space Science
by
Pulze
introductory-physics
A dart is thrown horizontally with an initial speed of 10.25 m/s toward a dartboard that is horizontal distance of 2.37 m from the position of the dart when it is released. What vertical distance, in centimeters, does the dart fall as it completes its trajectory?
asked
Mar 17, 2022
in
Physics & Space Science
by
sierranorwood
introductory-physics
A golfer on a fairway is 67.2 m from the green. The golfer hits a ball at an angle of 31.3 degrees above horizontal, with an initial speed of 15 m/s. The course is on a slope such that the ball lands at a point 18 m lower than the ball's initial position on the fairway. How far from the green (in meters) does the ball land? Neglect air resistance and any rolling motion of the ball after it lands. Assume the green is at the same height as the position at which the ball lands.
asked
Mar 17, 2022
in
Physics & Space Science
by
sierranorwood
introductory-physics
A mountain biker encounters a jump on a race course that sends him into the air at 37.1 degrees to horizontal. He lands at a horizontal distance of 20.9 m and 13.1 m below his launch point. What was his launch speed, in m/s?
asked
Mar 17, 2022
in
Physics & Space Science
by
sierranorwood
introductory-physics
You throw a baseball with an initial speed of v01 = 23 m/s at a particular launch angle here on Earth where the acceleration of gravity is g1 = 9.80 m/s2. Assume the launch height is the same as the landing height. A.) All else being equal, write and expression for the launch speed, v02, that would result in the same range on a planet whose acceleration of gravity has a value of g2 = 4.97 m/s2. B.) What is value of the answer to part (a) in m/s?
asked
Mar 17, 2022
in
Physics & Space Science
by
sierranorwood
introductory-physics
What is the magnitude of the acceleration of a skydiver who is currently falling at two-thirds his eventual terminal speed?
asked
Feb 23, 2022
in
Physics & Space Science
by
Kkd610
introductory-physics
A circular cylinder of height 1.20 m having faces of diameter 0.620 m is immersed in water of density 1.00 × 10^3 kg/m3 with its axis vertical so that its faces are parallel to the surface of the water. The upper face is 2.50 m below the surface of the water. The net force on this cylinder is observed to be 1120 N downward. Atmospheric pressure is 1.01 × 10^5 Pa. What is the weight of the cylinder?
asked
Feb 16, 2022
in
Physics & Space Science
by
datta
introductory-physics
8 g bullet fired into 2.5 kg ballistic pendulum and becomes embedded into it. Pendulum rided a vertical distance of .06 m calculate the initial speed of the bullet
asked
Nov 18, 2021
in
Physics & Space Science
by
DurocsRock
introductory-physics
Alex throws a .15kg rubber ball. The speed just before impact is 6.5 m/s and just after impact is 3.5 m/s. What is the change in the magnitude of the ball's momentum
asked
Nov 18, 2021
in
Physics & Space Science
by
DurocsRock
introductory-physics
A swan is landing on an icy lake, sliding across the ice and gradually coming to a stop. As the swan slides, the direction of the acceleration is
asked
Nov 18, 2021
in
Physics & Space Science
by
mammori
introductory-physics
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