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3 years ago

A student measured the specific heat of water to be 4.29 J/g.Co. The

Physics

1 answer:

leonid [27]3 years ago

7 0

Answer:

2.63 %.

Explanation:

Given that,

The calculated value of the specific heat of water is 4.29 J/g.C

Original value of specific heat of water is 4.18 J/g.C.

We need to find the student's percent error. The percentage error in any quantity is given by :

$P=\dfrac{|\text{original value-calculated value}|}{\text{original value}}\times 100\\\\P=\dfrac{4.29-4.18}{4.18}\times 100\\\\P=2.63\%$

So, the student's percent error is 2.63 %.

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Two cylinders with the same mass density rC = 713 kg / m3 are floating in a container of water (with mass density rW = 1025 kg /

cluponka [151]

Answer:

$\dfrac{h_2}{h_1}=\dfrac{1}{2}$

Explanation:

Lets take h is height of cylinder immersed in the water

We know that for floating body

$h=\dfrac{\rho_cL}{\rho_l}$

Where $\rho_c$ density of cylinder

$\rho_l$ density of water

For both cylinder fluid is same also density of cylinders are also same

$\dfrac{h_1}{L_1}=\dfrac{h_2}{L_2}$

$\dfrac{h_1}{h_2}=\dfrac{L_1}{L_2}$

$\dfrac{h_1}{h_2}=\dfrac{20}{10}$

$\dfrac{h_2}{h_1}=\dfrac{1}{2}$

3 0

3 years ago

For your answer to this problem, just type in the numerical magnitude of the momentum - no units.

stepan [7]

Answer:

120 kg•m/s.

Explanation:

From the question given above, the following data were obtained:

Case 1

Mass of object = M

Velocity of object = V

Momentum = 15 kg•m/s

Case 2

Mass of object = 2M

Velocity of object = 4V

Momentum = ?

Momentum is defined as follow:

Momentum = mass × velocity

The momentum of object in case 2 can be obtained as follow:

From case 1

Momentum = mass × velocity

15 = M × V

15 = MV ....... (1)

From case 2:

Momentum = mass × velocity

Momentum = 2M × 4V

Momentum = 8MV ....... (2)

Finally , substitute the value of MV in equation 1 into equation 2.

Momentum = 8MV

MV = 15

Momentum = 8 × 15

Momentum = 120 kg•m/s

Therefore, an object with a mass of 2M and 4V would have a momentum of 120 kg•m/s

3 0

3 years ago

When a beam of charged particles moves through a magnetic field, what is the evidence that particles in the beam have momentum g

Vsevolod [243]

The charged particles are often deflated in a magnetic field.

<h3>What is a magnetic field?</h3>

The term charge refers to a positive or negative entity. The can be created when a charge is made to pass through a conductor in a magnetic field.

A magnetic field is created when we have a north pole and a south pole. The charged particles could be made to pass through the electric field and when that happens, we can see a pattern a shown in the image attached.

Thus, we can see that the charged particles are often deflated in a magnetic field.

Learn more about magnetic field:brainly.com/question/23096032

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