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
Gwar [14]
3 years ago
8

Usa test prep- Look at the picture below to answer. If u answer correctly i will mark you as brainliest!

Physics
2 answers:
Diano4ka-milaya [45]3 years ago
7 0
A. Since the nucleus consists of protons and neutrons, they have a mass of 1 units while electrons that are surrounding the nucleus has almost negligible weight.

Plsssss mark me as brainliest
Vladimir [108]3 years ago
4 0

Answer:

A

Explanation:

The greatest concentration of atomic mass is in the nucleus because it is made up of protons and neutrons. The electrons surrounding the nucleus don't have as much mass as protons or neutrons.

Hopefully this helps...

You might be interested in
The reason an astronaut in an earth satellite feels weightless is thatThe reason an astronaut in an earth satellite feels weight
ozzi

The reason an astronaut in an earth satellite feels weightless is that the astronaut is falling.

Option a

<u>Explanation: </u>

The other options except Option is not applicable since the gravitational force is a long range force, in which the satellite revolves very close to the surface of the Earth where the gravity is felt.The zero weight experienced by the astronaut in a satellite is due to the earth pulling along with satellite. Due to gravitational force of the Earth,the astronaut falls freely .

But why not the satellite comes down due to gravity when its launched in space. The fact is that the satellite is launched with velocity of tangent direction and it is very high. The centripetal force balances the gravity.

8 0
3 years ago
Read 2 more answers
A baseball (m=140g) traveling 32m/s moves a fielders
posledela

Answer:

Average force, F = 286.72 N

Explanation:

Given that,

Mass of the baseball, m = 140 g = 0.14 kg

Speed of the ball, v = 32 m/s

Distance, h = 25 cm = 0.25 m

We need to find the average  force exerted by the ball on the glove. It is solved using the conservation of energy as :

\dfrac{1}{2}mv^2=mgh

F = mg

\dfrac{1}{2}mv^2=Fh

F=\dfrac{mv^2}{2h}

F=\dfrac{0.14\times (32)^2}{2\times 0.25}

F = 286.72 N

So, the average force exerted by the ball on the glove is 286.72 N. Hence, this is the required solution.

7 0
3 years ago
When does a falling object reach terminal velocity?
Ratling [72]

At some speed, the drag or force of resistance will equal the gravitational pull on the object. At this point the object ceases to accelerate and continues falling at a constant speed called the terminal velocity (also called settling velocity).

5 0
3 years ago
In which stage of a star's life cycle, does gravity and fusion become balanced, and an adult star forms?
V125BC [204]

Answer:

im guessing red giant-

8 0
2 years ago
A wire has a cross sectional area of 4.00 mm2 and is stretched by 0.100 mm by a certain force. How far will a wire of the same m
Nina [5.8K]

Answer: 0.05\ mm

Explanation:

Given

Cross-sectional area of wire A_1=4\ mm^2

Extension of wire \delta l=0.1\ mm

Extension in a wire is given by

\Rightarrow \delta l=\dfrac{FL}{AE}

where, E=\text{Youngs modulus}

\Rightarrow \delta_1=\dfrac{FL}{A_1E}\quad \ldots(i)

for same force, length and material

\Rightarrow \delta_2=\dfrac{FL}{A_2E}\quad \ldots(ii)

Divide (i) and (ii)

\Rightarrow \dfrac{0.1}{\delta_2}=\dfrac{A_2}{A_1}\\\\\Rightarrow \delta_2=0.1\times \dfrac{4}{8}\\\\\Rightarrow \delta_2=0.05\ mm

5 0
2 years ago
Other questions:
  • A 32.5 g cube of aluminum initially at 45.8 °C is submerged into 105.3 g of water at 15.4 °C. What is the final temperature of b
    10·1 answer
  • Which suspect is one who wrote the suicide note?
    10·1 answer
  • The circuit shown in the picture can be broken in four places. Which places can the circuit be broken and still have at least on
    5·1 answer
  • changes in which the form or shape of a substance changes but the substance keeps its identity are called
    9·1 answer
  • A train travels 55km, south along a straight track in 34minutes. What is the train Ls average velocity in kilometers per hour
    6·1 answer
  • What is mechanical energy?
    11·1 answer
  • Show that a light ray that strikes two mutually perpendicular reflecting surfaces is reflected back exactly parallel to the dire
    5·1 answer
  • What is the frequency if 140 waves pass in 2 minutes?
    9·1 answer
  • What is the difference between arteries and artiole?
    7·1 answer
  • What happens to the speed of the electrons when the resistance is decreased?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!