3 years ago

A system for specifying the precise of objects in space and time

1 answer:

german3 years ago

7 0

The answer is frame of reference ( system ).
Frame of reference <span>is a physical concept related to state of motion.

hoped it helped!!</span>

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Though some self-report error may exist, surveys/interviews are useful in that they allow researchers to collect large amounts o

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Definitely true, surveys and interviews aren’t flawless but you can collect lots of data from them

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3 years ago

what is the resistance of a clock if it has a current of 0.30 a and runs on a 9.0-v battery? 0.033 2.7 9.3 30

Nataliya [291]

R = V/I = 9 / 0.3

R = 30 ohms.

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3 years ago

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A frictionless pendulum is made with a bob of mass 19.7 kg. The bob is held at height = 0.934 meter above the bottom of its traj

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Answer:

265 J

Explanation:

$Energy=PE+KE=mgh+ 0.5mv^{2}$ where KE is kinetic energy, PE is potential energy, m is the mass of an object, v is the speed, h is the height and g is acceleration due to gravity.

Substituting 19.7 Kg for mass, 0.934 for h, 2.93 for v and 9.81 for g then

$Energy=19.7(9.81*0.934+0.5*2.93^{2})=265.063303\approx 265 J$

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3 years ago

An advertisement claims that a certain 1200kg can accelerate from rest to a speed of 25 m/s in a time of 8s. What average power

expeople1 [14]

Answer: 3MW

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W = 1/2 mv^2

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3 years ago

The wood wrangler track team traveled South toward Garner Middle

Karo-lina-s [1.5K]

Answer:

2km/min

Explanation:

Velocity= change in distance / time taken

Velocity = 20km/10min=2km/min south

South is placed there to show what direction she went, as velocity has both magnitude and direction

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3 years ago