The product of voltage across a device and the charge passing through it is

1 answer:

6 0

The product of the voltage across a device- V and the charge (current) I passing through is electric power, represented with the letter P.
P=V*I.
The electric power is the rate of doing work
Voltage is measured in volts, current in amps and and electric power is measured in watts.

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A cube 10.0 cm on each side has a density of 2.053 x 10^4 kg/m^3. It’s apparent weight in fresh water is 192 N. Find the buoyant

insens350 [35]

Answer:

9 N

Explanation: Given that L = side of the cube = 10cm = 0.1m

Mass = Density * Volume

Let’s determine the volume of the cube in m^3.

V = L^3

V = 0.1^3 = 0.001m^3

Mass = 0.001 * 2.053 * 10^4 = 20.53kg

Weight = 20.53 * 9.8 = 201.194

Buoyant force = 201.194 – 192 = 9.194 N

This is approximately 9 N.

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4 years ago

In sexually reproducing animals, once fertilization of the egg takes place, the ___________ exists as a single cell until cell d

RSB [31]

The fertilized egg or the zygote exists as a single cell until cell division.

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4 years ago

Which describes an atom that has fewer neutrons than protons and more electrons than protons?

aleksklad [387]

Answer:

negative ion

Explanation:

An atom that has fewer neutrons than protons and more electrons than protons is a negative ion.

The positively charged particles in an atom are the protons

The negatively charged particles in an atom are the electrons.

The charge an atom carries depends on the balance between the number of protons and electrons in an atom.

When the number of protons is more than the number of electrons, the atom is positively charged.
When the number of electrons is more than the number of protons, the atom is negatively charged.

7 0

3 years ago

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A hoop, a solid cylinder, a spherical shell, and a solid sphere are placed at rest at the top of an inclined plane. All the obje

iogann1982 [59]

Answer:

Solid sphere will reach first

Explanation:

When an object is released from the top of inclined plane

Then in that case we can use energy conservation to find the final speed at the bottom of the inclined plane

initial gravitational potential energy = final total kinetic energy

$mgh = \frac{1}{2}mv^2 + \frac{1}{2}I\omega^2$