3 years ago

The student hung the plastic strip over a wooden rod

Physics

1 answer:

dimaraw [331]3 years ago

3 0

Answer:

The main force in play here is weight W, or m*g (where m is Mass and g is Gravity) that make up the main force acting downwards. This could also be referred to as the normal force.

Explanation:

From what we can see the plastic strip is at a certain angle. To which other forces, such as: friction, pull and the ones mentioned above come into play in this question.

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riadik2000 [5.3K]

Answer:

t=2.10 s

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Explanation:

given that

h= 21.8 m

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The vertical speed of the car at initial condition is zero ( v= 0).

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2 years ago

Rebecca heated 50mL of water from 0 degrees Celsius to 60 degrees Celsius. How much energy did she use to heat the water? Rememb

kramer

Answer:

12552 J or 3000 calories

Explanation:

Q = m × c × ∆T

Where;

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c = specific heat capacity (4.184 J/g°C)

∆T = change in temperature

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