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3 years ago

Table is in the picture. and will mark brainstest.

Physics

1 answer:

QveST [7]3 years ago

8 0

B. A copper wire with rubber insulation

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Apakah itu hukum hooke.....can i knw detail n simple?

butalik [34]

Hooke's law is stated as: F = -kx

Where:

F = Force to compress or extend a spring (unit N)
k = Spring constant
x = displacement of spring

Or to help you in your native language:

F = adalah gaya
k = adalah konstante pegas
x = adalah jarak pergerakan pegas dari posisi normalnya

4 0

3 years ago

A 2.2 kg box is sliding along a frictionless horizontal surface with a speed of 1.8 m/s when it encounters a spring. (a) Determi

iogann1982 [59]

Answer:

a) $k = 2851.2\,\frac{N}{m}$ , b) $v = 0.54\,\frac{m}{s}$

Explanation:

a) According to the Principle of Energy Conservation, the kinetic energy of the box is transformed into elastic potential energy.

$\frac{1}{2}\cdot (2.2\,kg)\cdot (1.8\,\frac{m}{s} )^{2} = \frac{1}{2}\cdot k \cdot (0.05\,m)^{2}$

The spring constant is:

$k = 2851.2\,\frac{N}{m}$

b) The initial speed needed to compress the spring by 1.5 centimeters is:

$\frac{1}{2}\cdot (2.2\,kg)\cdot v^{2} = \frac{1}{2}\cdot (2851.2\,\frac{N}{m} )\cdot (0.015\,m)^{2}$

$v = 0.54\,\frac{m}{s}$

5 0

4 years ago

A circuit is built based on the circuit diagram shown. What is the current in the 50 Ω resistor

In-s [12.5K]

Answer:

1.2 A

Explanation:

From the diagram attached, The three resistors are parallel because the each ends of the resistors are connected together. Since they are in parallel, the voltage across each resistor is the same. The voltage source connected in parallel to the resistors is 60 V. Therefore the voltage across the 50 Ω resistor is 60 V. Using ohm law:

Voltage (V) = Current (I) × Resistance (R)

V = IR

I = V/R

I = 60 V/ 50 Ω

I = 1.2 A

The current in the 50 Ω resistor is 1.2 A

5 0

3 years ago

I NEED THS ANSWER FOR ALL

Paul [167]

Answer:

O has higher ionisation energy, Ca requires less energy, non metals have higher electronegativities, highly reactive metal will be best fit for group 1

7 0

3 years ago

A student wanted to determine the evaporation rates of liquids. She placed 50 mL of each liquid outside for an hour on the same

WARRIOR [948]

Answer:

without answers to choose from, I'd say make sure you're using the same shape and sized containers, and they're placed in the same locations at the same time. also you'd probably get a more accurate result by leaving them longer than an hour, more like a day or 2, and do it on multiple different days, when the temperature is different each day and then take an average of those days...

8 0

3 years ago