Aiden takes 0.10s to throw a baseball, which leaves his hand with a velocity of 49m/s. The balls acceleration is

Answers

Answer 1

Answer: Since the ball was not moving before it let Aiden's hand, the formula used to calculate the acceleration is
$a = (v)/(t)$
, where a is acceleration, v is velocity and t is the time. We put them in the formula and get
$a = (49)/(0.1) \n a = (490)/(1) \n a = 490$
The acceleration is 490 m/s^2

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Density=2g/mL and volume=20mL what is mass

Answers

Answer:

40g

Explanation:

Mass = density x volume

= 2 x 20

= 40g

Answer:

m = V × ρ

= 20 milliliter × 2 gram/cubic meter

= 2.0E-5 cubic meter × 2 gram/cubic meter

= 4.0E-5 gram

= 4.0E-8 kilogram

Explanation:

The density of a material, typically denoted using the Greek symbol ρ, is defined as its mass per unit volume.

ρ =

where:

ρ is the density

m is the mass

V is the volume

The calculation of density is quite straightforward. However, it is important to pay special attention to the units used for density calculations. There are many different ways to express density, and not using or converting into the proper units will result in an incorrect value. It is useful to carefully write out whatever values are being worked with, including units, and perform dimensional analysis to ensure that the final result has units of mass volume. Note that density is also affected by pressure and temperature.

In a nuclear power plant, _____. energy is released from the nuclei of atoms energy is released from the bonds of molecules energy is released from the electrons of atoms energy is stored in the nucleus of atoms

Answers

In a nuclear power plant, energy is released from the nuclei of atoms. The correct option among all the options given in the question is the first option. Huge amount of thermal energy is released by the breaking of the uranium atoms. This energy is used for turning a turbine that produces electricity. It is a very clean method of producing electricity.

Answer: energy is released from the nuclei of atoms

Explanation:

Chemical energy is the energy stored in the bonds of molecules.

Nuclear energy is the energy stored in the nucleus of the atom.

Nuclear power plants use heat produced during nuclear fission to heat water which is produced by the splitting of heavy nucleus into lighter elements by release of energy.

The complete nuclear fission reaction is:

$_(92)^(235)\textrm{U}+_0^1\textrm{n}\rightarrow _(56)^(143)Ba+_(36)^(90)Kr+3_0^1\textrm{n}$

Area with lower atmospheric pressure than its surrounding areas; this makes air from surrounding areas to flow into the low, the end result of which is probably cloudiness and precipitation.

Answers

Answer:

"Low pressure system"

Explanation:

The area you are describing is known as a "low-pressure system" in meteorology. In a low-pressure system, the atmospheric pressure at the surface is lower than the pressure in the surrounding areas. This difference in pressure causes air from the surrounding areas to flow into the low-pressure region, creating a circulation pattern. As the air rises within the low-pressure system, it cools and can lead to the formation of clouds and precipitation. Low-pressure systems are often associated with stormy weather and can bring rain, snow, or other forms of precipitation, depending on the temperature and moisture content of the air.

A block of wood has a volume of 125 cm has a mass of 27 g. What is the density of this block ?

Answers

Answer:

27/125

(3/5)³

(0.6)³

0.216 gm/cm³ or g/cc

Explanation:

Given:
Volume = 125 cm³
mass: 27 grams

Here Density is actually the amount of matter present in unit volume.

Mathematically, rho(like p) (tapering downwards) = Mass/Volume
Putting, 27/125 g/cm³

0.216 g/cc

A 10,000-watt radio station transmits at 535 kHz.Determine the number of joules transmitted per second.

Answers

Answer:

Energy is 10,000 Joules.

Explanation:

It is given that, a 10,000 watt radio station transmits at 535 kHz. We have to write the number of joules transmitted per second.

We know that number of joules transmitted per second is called the power. Its SI unit is watts. Mathematically, the power of radio station is given by :

$P=(W)/(t)$

Where

W is the work done by radio station

t is the time taken.

According to relation :

$1\ watt==(1\ Joule)/(1\ seconds)$

So, $10,000\ watt==(10,000\ Joule)/(1\ seconds)$

Hence, energy per second is 10,000 Joules.

If you are given a 10,000-watt radio station transmits at 535 kHz, then you just divide one by 535,000 Hz which is equal to 1.87 x 10^-6 seconds. Multiply this value by 10,000W and you get 0.019 Joules.

Select all that apply. _____ is a place where the crust of the lithosphere has fractured. A fault A subduction zone An oceanic trench A river

Answers

A fault? yes !A fault is a fracture with a significant rock mass movement as a result.

A subdution zone? No, although it is a place where the tectonic place meet (so are likely to fracture, but do not necessarily need to fracture).

An oceanic trench? No, although a trench does mark where the tectonic plates meet

A river? no!

The only right answer from these available options is a fault.

Other Questions

Elements in the same group or family share important

a 42.3 kg girl and a 7.93 kg sled are on the surface of a frozen lake, 15.0m apart and linked by a rope, but not moving yet. then the girl pulls on the rope, exerting a 5.76 N force on the sled, pulling it toward her. how far from the girl's original position do they meet?

A trunk is dragged 3.0 meters across an attic floor by a force of 2.0 N. How much positive work is done on the trunk?

The headlights are shining on a truck travelling at 100 km/h. The speed of the light from the headlights relative to the road will be:A) c B) c + 100 km/h C) c – 100 km/h D) depends on the temperature, but faster than the speed if the truck was not moving. E) faster than if the truck was not moving, but impossible to calculate with the given information