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vfiekz [6]
2 years ago
14

Tool used to measure time

Physics
2 answers:
kodGreya [7K]2 years ago
8 0

Answer:Stop watches are also used to measure time in some sports.

Explanation:clocks

In the past, a common time measuring instrument was the sundial. Today, the usual measuring instruments for time are clocks and watches. For highly accurate measurement of time an atomic clock is used. Stop watches are also used to measure time in some sports.

charle [14.2K]2 years ago
6 0

Answer:

clock

Explanation:

personal experience

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A professor's office door is 0.91 m wide, 2.0 m high, and 4.0 cm thick; has a mass of 25 kg; and pivots on frictionless hinges.
olasank [31]

Answer:

F= 5.71 N

Explanation:

width of door= 0.91 m

door closer torque on door= 5.2 Nm

In order to hold the door in open position we need to exert an equal and opposite torque, to the door closer torque, on the door.

so wee need to exert 5.2 Nm torque on the door.

If we want to apply minimum force to exert the required torque we need to apply force perpendicularly on the door knob (end of door) so that to to greater moment arm.

T= r x F

T= r F sin∅

F= T/ (r * sin∅)

F= 5.2/ (0.91 * 1)

F= 5.71 N

5 0
3 years ago
Consider a sample containing 1.70 mol of an ideal diatomic gas.
babunello [35]

I don't know

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7 0
2 years ago
Un objeto de 1400 g de masa se mueve bajo la acción de una fuerza constante con una aceleración de 0,5 m/s2 , sobre una superfic
igomit [66]

Answer:

if you spoke this in english i can help you out

Explanation:

3 0
3 years ago
What two forces act on a falling object ?
goldenfox [79]

Answer:

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Speed is the ratio of the distance an object moves to
guajiro [1.7K]
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6 0
2 years ago
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