Lithium Is The Lightest Of Metals And The Least Dense Of All Nongaseous Elements. A Pure Lithium Sample (2024)

Answer:

R = 240 Ω

Explanation:

The resistance created by the light bulb can be calculated by using Ohm's Law:

[tex]V = IR\\\\R =\frac{V}{I}[/tex]

where,

R = Resistance created by the light bulb = ?

V = Voltage across the bulb = 120 volts

I = current passing through the light bulb = 0.5 A

Therefore,

[tex]R = \frac{120\ volts}{0.5\ A}[/tex]

R = 240 Ω

Answer:

If I remember right I believe it's radio waves

Answer:

0.500 T

Explanation:

Since the change in time and the number of coils are both 1, I set the problem up to be 1.3=(1.5(x)-13(x)). I then plugged in numbers for x until I got the answer to be 1.3 V.

Answer:

The electric potential will be "259.695 volt".

Explanation:

In the given question, the figure is not provided. Below is the attached figure given.

Given:

[tex]q_1=6.39\times 10^{-9} \ C[/tex]

[tex]q_2=3.22\times 10^{-9} \ C[/tex]

[tex]AP=(0.150+0.250)[/tex]

[tex]=0.40 \ m[/tex]

[tex]BP=0.25 \ m[/tex]

Now,

At point P, the electric potential will be:

⇒ [tex]V=\frac{q_1}{4 \pi \epsilon_o AP } +\frac{q_2}{4 \pi \epsilon_o BP}[/tex]

By putting values, we get

⇒ [tex]=9\times 10^9 [\frac{6.39\times 10^{-9}}{0.40} +\frac{3.22\times 10^{-9}}{0.25} ][/tex]

⇒ [tex]=259.695 \ Volt[/tex]

Answer:

259.695

Explanation:

Acellus

Answer:

Magnetic field in Tesla: 1.65*10^−10 T, 0, 3.09*10^−10 T

Explanation:

Given data:

i = 4.8 A ,

dBx = 1.65*10^-10 T

dBy = 0 T

dBz = 3.09 * 10^-10 T

Attached below is the detailed solution

Answer: D

Explanation: nuclear fission

Answer:

The answer is below

Explanation:

The acceleration of a ball rolling down an inclined plane would be greater than that of the acceleration of a ball rolling up if acted upon by a force of equal magnitude. For a ball rolling down an inclined plane, the acceleration due to gravity (gsinθ) acts in the direction of motion of the ball thereby leading to an increase in the acceleration of the ball; while for a balling rolling upwards, the acceleration due to gravity acts in the direction opposite to the motion of the ball thereby leading to a decrease in the acceleration of the ball.

Answer:

1.constant acceleration.

2.0 ms

3. 0 ms

Explanation:

1. (D) uniformly accelerated motion

2. (A) zero

3. (B) -10 m/s

4. (C) -9.8 m/s^2

5. (B) projectile motion

Answer:

(A)²

Explanation:

Atomic mass = density*volume of atom.

So, density of nucleus is in depend of mass number

d=

3

4

πr

3

Massno.

=

3

4

π×[1.3×10

−13

×A

1/3

]

3

A

=constant∗A

as R=R

A

1/3

(R

=1.1×10

−15

m)

The numerical value of the density of a nucleus of atomic number A is determined as 2.29 x 10¹⁷ kg/m³.

Density of the nucleus

The density of the nucleus of atomic number A​ is calculated as follows;

ρ = m/V

where;

m is mass of the atom = 1.66 x 10⁻²⁷ kgr is radius of the atom = 1.2 x 10⁻¹⁵ m

[tex]\rho = \frac{m}{V} \\\\\rho = \frac{m}{\frac{4}{3} \pi r^3} \\\\\rho = \frac{1.66 \times 10^{-27}}{\frac{4}{3} \pi (1.2 \times 10^{-15})^3} \\\\\rho = 2.29 \times 10^{17} \ kg/m^3[/tex]

Thus, the numerical value of the density of a nucleus of atomic number A is determined as 2.29 x 10¹⁷ kg/m³.

The complete question is below:

​find the numerical value of the density of a nucleus of atomic number A​ with a radius of 1.2 x 10⁻¹⁵ m and mass of 1.66 x 10⁻²⁷ kg.

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Answer:

A) a snowboarder who increases speed when traveling downhill

A snowboarder who increases speed when traveling downhill will have negative acceleration.

What is acceleration ?

Acceleration is described as the rate of change of velocity with time.

[tex]a&=\frac{\Delta v}{\Delta t}[/tex]

Here, as the snowboarder is traveling in negative y direction therefore the final velocity will be great than initial velocity with negative sign. It should be noted that velocity and acceleration are vector quantities i.e. depends upon the direction in which they have been applied.

Also negative acceleration is denoted as the situation when the object moves in the direction that is opposite to its direction of velocity.

In the above situation, the force is being applied to travel downhill(speeding up in the negative direction) in the opposite direction which exemplifies negative acceleration.

Thus, option A is the correct answer.

Learn more about "Acceleration" here:

https://brainly.in/question/1251836

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Answer: Change

Explanation:

Answer:

In the medium where the angle of incedence is 10°

Explanation:

This is because angle of incedence is directly proportional to refractive index of a medium.

Since refractive index is inversely proprtional to speed of light in medium, it will be the case.

3000 kg) (V) + (1000 kg) (V) = 1390 kg m/s

V = 0.347 m/s (in the direction of the truck.

Go on here it’s a pdf I hope it works it shows a chart.

http://faculty.ric.edu/phys110/momentum%20review%20answsers.pdf

Answer:

5kg is 5000gm hope it helps

Answer is C

But yaaaaaaaa

Explanation:

When you brake all of asudden, if you arenot wearing a seat belt, your face is bound to hit against the windshield. Theseat belt stopsthis inertia. If your car is goingat60 MPH, your face will be saved from the impact. ... There are many accidents where thedriveris thrown out of the car and this can be deadly.

Explanation:

The moon orbits the Earth once every 27.322 days. It also takes approximately 27 days for the moon to rotate once on its axis. As a result, the moon does not seem to be spinning but appears to observers from Earth to be keeping almost perfectly still. Scientists call this synchronous rotation

Answer:

A chemical reaction expresses a chemical change. For example, one chemical property of hydrogen is that it will react with oxygen to make water. We can write that as follows:

hydrogen reacts with oxygen to make water

We can represent this chemical change more succinctly as

hydrogen +oxygen →water

The number of rattlesnakes in a forest ecosystem would be dependent on both the number of available prey and predators.

Predator, prey, and population size

The population size of an organism in an ecosystem depends on a variety of factors. Prominent among these factors are food availability and the population of predators in the ecosystem.

Rattlesnakes are predator snakes who also serve as prey to predatory birds such as hawks and owls.

Thus, the population of rattlesnakes would depend largely on the availability of prey as well as the population of predatory birds in the ecosystem.

More on factors that determine population size can be found here: https://brainly.com/question/15697245

Answer:

D, the lithosphere. (CRUST AND UPPER MANTLE)

Explanation:

A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere. Plate size can vary greatly, from a few hundred to thousands of kilometers across; the Pacific and Antarctic Plates are among the largest. Plate thickness also varies greatly, ranging from less than 15 km for young oceanic lithosphere to about 200 km or more for ancient continental lithosphere (for example, the interior parts of North and South America).

Information found on:

https://pubs.usgs.gov/gip/dynamic/tectonic.html#:~:text=A%20tectonic%20plate%20(also%20called,both%20continental%20and%20oceanic%20lithosphere.&text=Continental%20crust%20is%20composed%20of,such%20as%20quartz%20and%20feldspar.

Answer:

ok

Explanation:

Answer:

The change of movement depends on the force that acts and the length of time it acts.

Answer:

Roughly around 117.6 mph

Explanation

To find out something's speed (or velocity) after a certain amount of time, you just multiply the acceleration of gravity by the amount of time since it was let go of. So you get: velocity = -9.81 m/s^2 * time, or V = gt. The negative sign just means that the object is moving downwards.

Answer:

Movement skills in square dancing transfer to ballroom dancing when they both require you to dance in a rhyme.

Explanation:

Answer:

Lightning happens when the negative charges (electrons) in the bottom of the cloud are attracted to the positive charges (protons) in the ground.

Explanation:

Hope it helps u

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Answer:

Explanation:

Lightning happens in the sky when the negative charges electrons in the bottom of the cloud are attracted to the positive charges protons in the ground.

Answer: Distillation of mixture

Explanation: Different fractions of crude oil have different

boiling points according molecular weight of hydrocarbons

Answer:

V = wavelength * frequency = 1.5 * 5.5 = 8.25 m/s