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SVETLANKA909090 [29]
2 years ago
14

A student measures her height with a meter stick and finds that she is about 1.5 m tall. How can she measure her height with gre

ater accuracy and precision?​
Physics
1 answer:
Eva8 [605]2 years ago
6 0

Answer:

She should use a measuring tape

Explanation:

A student measures her height with a meter stick and gets a result of 1.5 m tall. This may not be as accurate as possible due to the fact that a meter stick has a maximum length of 1m which means an error could have occurred when she had to mark a point and then measure the remaining 0.5m.

She can however measure her height with greater accuracy and precision with a meter tape which has a wider measurement range and there won’t be any need to measure twice.

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Dennis_Churaev [7]

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W=Fd \\ 50 = 25d \\ d =  \frac{50}{25}  \\  \color{yellow} \boxed{d = 2m}

8 0
3 years ago
A jet airplane has a velocity of 1145 knots. A knot is 1 nautical mile (nm)/hr. A nautical
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Answer:

1 m = 39.37 in = 39.37/12 ft = 3.28 ft

V = 1145 k/hr  = 1145k/hr * 6076 ft/k = 6957020 ft / hr

V = 6957020 ft/hr / 3600 s/hr = 1933 ft/sec

V = 1933 ft/sec / (3.28 ft / m) = 589 m/s

Check:

88 ft/sec = 60 mph

(1145 k/hr * 6076 ft / k) 3600 sec/hr = 1933 ft/sec = 589 m/s

1933 ft/sec / (88 ft/sec) * 60 mph = 1318 mph

Also,  1318 / 1145 = 6076 / 5280       as it should

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2 years ago
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Explanation:

3 0
3 years ago
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The gasoline in a car does 40,000 J of work on a car and generates a constant force of 20 N. How far did the car go?
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Given a sphere with radius r, find the height of a pyramid of minimum volume whose base is a square and whose base and triangula
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