All categories

4 years ago

2. Why is it important to repeat an experiment? (4 points)

Physics

1 answer:

Ivan4 years ago

6 0

Answer:

So you can get the results correctly

You might be interested in

The first hominine in the genus Homo was named Homo habilis because evidence indicates that members of the species used

Naily [24]

Homo Habilis was a secies of the tribe Hominini, which lived between 2.4 and 1.5 million years ago. His name means "handy man" or "able man". Homo habilis was short, with disproportionately long arms compared to modern humans. His remains are often acompanied by primitive stone tools. Answer: The species was nemed because evidence indicates that members of the spieces used<span> stone tools. </span>

4 0

3 years ago

Read 2 more answers

Tarzan, who weighs 849 N, swings from a cliff at the end of a 18.0 m vine that hangs from a high tree limb and initially makes a

loris [4]

Answer:

Part a)

$T = 342.5 \hat i + 675\hat j$

Part b)

$F_{net} = 342.5\hat i - 174\hat j$

Part c)

$F = 384.2 N$

Part d)

$\theta = 333 degree$

Part e)

$a = 4.4 m/s^2$

Part f)

$\theta = 333 degree$

Explanation:

Part a)

Magnitude of tension force is given as

$T = 757 N$ at 26.9 degree with vertical

$T = 757 sin26.9 \hat i + 757 cos26.9 \hat j$

$T = 342.5 \hat i + 675\hat j$

Part b)

Net force on Tarzen is given as

$F_{net} = T + F_g$

$F_{net} = 342.5 \hat i + 675\hat j - 849 \hat j$

$F_{net} = 342.5\hat i - 174\hat j$

Part c)

magnitude of the force is given as

$F = \sqrt{F_x^2 + F_y^2}$

$F = \sqrt{342.5^2 + 174^2}$

$F = 384.2 N$

Part d)

Direction of the force is given as

$tan\theta = \frac{F_y}{F_x}$

$tan\theta = \frac{-174}{342.5}$

$\theta = 333 degree$

Part e)

Magnitude of the acceleration

$a = \frac{F}{m}$

$m = \frac{849}{9.81} = 86.5 kg$

tex]a = \frac{384.2}{86.5}[/tex]

$a = 4.4 m/s^2$

Part f)

Direction of acceleration is same as the direction of the force

$\theta = 333 degree$

6 0

3 years ago

What does Newton's third law describe?

Dennis_Churaev [7]

A. Equal and opposite forces

Explanation:
History law states that for every action (force) in nature there is an equal and opposite reaction. In other words, if object A exerts a force on object B, then object B also exert an equal and opposite force on object A

7 0

3 years ago

Define pressure. write it's Si unit.<br>

tekilochka [14]

Hi :)

Pressure is the force applied perpendicular to the surface of an object per unit area

The SI unit of pressure is N/m^2

Hope this helps!

8 0

3 years ago

Read 2 more answers

A circuit that has only a single path for current to flow through is best classified into which category? a series circuit an op

Salsk061 [2.6K]

The correct answer to your question would be the 1st answer choice, A series circuit.

Hope this helped you!! (:

7 0

4 years ago