1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
IceJOKER [234]
2 years ago
8

The Atomic number tells us the number of ____ in an atom.

Physics
2 answers:
nadezda [96]2 years ago
6 0

Answer:   protons

Explanation:        

yawa3891 [41]2 years ago
5 0

Answer:

Protons

Explanation:

You might be interested in
F(x)= 10x-5<br>What is the value of f-1(-4) ?​
Afina-wow [57]

Answer:

f^{-1}(-4) = \frac{1}{10}

Explanation:

Firstly finding f^{-1}(x)

So,

f(x) = 10x-5

Substitute y = f(x)

y = 10x-5

Exchange the values of x and y

x = 10y-5

Solving for y

x = 10y-5

Adding 5 to both sides

10y = x+5

Dividing both sides by 10

y = \frac{x+5}{10}

Replace y = f^{-1}(x)

f^{-1}(x) = \frac{x+5}{10}

For x = -4

f^{-1}(-4) = \frac{-4+5}{10}

f^{-1}(-4) = \frac{1}{10}

6 0
2 years ago
Read 2 more answers
What do simple machines increase?<br> Force<br> Density<br> Work<br> Mechanical advantage
Orlov [11]
The wheel and axle increases your force. You exert your input force over a long distance and the output force is increased over a shorter distance. (Because the wheel is larger than the axle, the axle rotates and exerts a large output force.) A simple machine with a grooved wheel with a rope or cable wrapped around it.
4 0
2 years ago
An airplane is flying in a horizontal circle at a speed of 480 km/h (). If its wings are tilted at angle =40° to the horizontal
german

Answer:

R = 2162 m

Explanation:

When wings of the airplane makes an angle of 40 degree with the horizontal so here we can say that force due to air is having two components

F_y = mg

F_x = \frac{mv^2}{R}

now we know that

F_y = F cos40

F_x = F sin40

also we know that

v = 480 km/h

v = 133.3 m/s

now plug in all data in above equations

tan 40 = \frac{v^2}{Rg}

R = \frac{v^2}{g tan40}

R = \frac{133.3^2}{9.8 tan40}

R = 2162 m

6 0
3 years ago
Which changes will decrease the electric force between two positively charged objects? Check all that apply.
zaharov [31]

Answer:

Moving them farther apart

Explanation:

The electric field between the two charges Q and q separated by a distance r is given by

E = \frac{K\times Q\times q}{r^{2}}

It shows that the electric field is inversely proportional to the square of the distance between two charges.

So, as the distance between two charges increases, the electric filed between the two charges decreases.

8 0
3 years ago
Read 2 more answers
How much charge does a 9.0 v battery transfer from the negative to the positive terminal while doing 39 j of work?
sdas [7]
The work done by the battery is equal to the charge transferred during the process times the potential difference between the two terminals of the battery:
W=q \Delta V
where q is the charge and \Delta V is the potential difference.

In our problem, the work done is W=39 J while the potential difference of the battery is \Delta V = 9.0 V, so we can find the charge transferred by the battery:
q= \frac{W}{\Delta V}= \frac{39 J}{9.0 V}=4.33 C
3 0
3 years ago
Other questions:
  • A box slides down a frictionless plane inclined at an angle θ ¸ above the horizontal. The gravitational force on the box is dire
    11·1 answer
  • The higher heat capacity of water compared to rock or sediment means that for the same seasonal variation in insolation the land
    5·1 answer
  • A wire with a current of 3.40 A is to be formed into a circular loop of one turn. If the required value of the magnetic field at
    15·1 answer
  • You decide to walk part of the way around a lake. The lake is a circle with a radius of 2.0 km You start on the shore due south
    11·1 answer
  • a force of magnitude 30 n stretches a spring 0.83 m from equilibrium. what is the value of the spring constant?
    10·1 answer
  • The Chandra X-ray observatory is BEST equipped to search for which types of stars? Select all that apply.
    13·2 answers
  • Can someone please help me
    6·1 answer
  • HELP NEEDED
    7·1 answer
  • Su una strada rettilinea ci sono due semafori che distano 98 m e che diventano verdi contemporaneamente. Dal primo semaforo part
    8·1 answer
  • 5. Calculate the area if the force is 368N and the pressure is 28Pa..
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!