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1 year ago

Which type of radioactive decay has a positive charge?

Physics

1 answer:

Ostrovityanka [42]1 year ago

6 0

The type of radioactive decay that has a positive charge is alpha particles, which are positively charged.

<h3>What is radioactive decay?</h3>

The expression radioactive decay makes reference to the emission of ionizing radiation for a given atom, thereby an unstable atom may lose energy by releasing radiation.

Alpha particles are specific atomic particles consisting of 2 protons (positive charge) and also 2 neutrons that share chemical bonds.

In conclusion, the type of radioactive decay that has a positive charge is alpha particles, which are positively charged.

Learn more about alpha particles here:

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Apples are stored in a container (width = length = 3.5 ft) that is filled to a depth of 2.75 feet. If the unit density of an app

Agata [3.3K]

Answer:

The mass of the apples in the box are 1145.95 lb.

Explanation:

Given that,

Width = 3.5 ft

length = 3.5 ft

Depth = 2.75 feet

Density = 49.3 lb/ft³

We need to calculate the volume

Using formula of volume

$V=l\times h\times b$

Put the value

$V=3.5\times3.5\times2.75$

$V=33.6875\ ft^3$

We need to calculate the mass

Using formula of density

$\rho=\dfraxc{m}{V}$

$m=\rho\timesV$

Put the value into the formula

$m=49.3\times33.6875$

$m=1660.79\ lb$

But porosity is 31 % so apples is 69% mass of total container.

So, Total mass in pounds is

$M=\dfrac{69}{100}\times1660.79$

$M=1145.95\ lb$

Hence, The mass of the apples in the box are 1145.95 lb.

8 0

2 years ago

What is an electric field? How<br> do you calculate the electric<br> field due to a point charge?

Elza [17]

An electric field is an electric property associated with each point in space when charge is present in any form.

7 0

1 year ago

- Calculate the efficiency of the human body if a person eats a hamburger containing 7.4822 kJ of

levacccp [35]

Explanation:

w = E

efficiency = (Woutput /Winput) x 100%= Eo/Ei x100%

= (2021 j / 7.4822 kj) x 100%

= 27.01% == B

3 0

2 years ago

Read 2 more answers

Calculate the speed of a car that covers a distance of 108km in 30 mins

Blababa [14]

The speed of the car is 60 m/s

Explanation:

The speed of an object is a scalar quantity telling "how fast" the object is moving, regardless of its direction. It can be calculated as follows:

$speed=\frac{d}{t}$

where

d is the distance covered

t is the time taken

For the car in this problem, we have

$d=108 km =1.08\cdot 10^5 m$ is the distance covered

$t=30 min \cdot 60 =1800 s$ is the time taken

Subsituting into the equation, we find the speed:

$speed=\frac{1.08\cdot 10^5}{1800}=60 m/s$

Learn more about speed:

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5 0

2 years ago

A hair dryer is basically a duct of constant diameter in which a few layers of electric resistors are placed. A small fan pulls

nekit [7.7K]

Given:

density of air at inlet, $\rho_{a} = 1.20 kg/m_{3}$

density of air at inlet, $\rho_{b} = 1.05 kg/m_{3}$

Solution:

Now,

$\dot{m} = \dot{m_{a}} = \dot{m_{b}}$

$\rho_{a} A v_{a} = \rho _{b} Av_{b}$ (1)

where

A = Area of cross section

$v_{a}$ = velocity of air at inlet

$v_{b}$ = velocity of air at outlet

Now, using eqn (1), we get:

$\frac{v_{b}}{v_{a}} = \frac{\rho_{a}}{\rho_{b}}$

$\frac{v_{b}}{v_{a}} = \frac{1.20}{1.05}$ = 1.14

% increase in velocity = $1.14\times 100$ =114%

which is 14% more

Therefore % increase in velocity is 14%

5 0

2 years ago

Read 2 more answers