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
EleoNora [17]
3 years ago
8

At a soccer game, a player kicks the ball. It leaves the ground as it travels across the field. Then, it comes back to the groun

d. Which choice
describes the two types of forces acting on the ball?

A. A force acting at a distance made the ball leave the ground, and a contact force made the ball return to the ground.

B. A contact force made the ball leave the ground, and a gravitational force made the ball return to the ground.

C. A contact force made the ball leave the ground, and a magnetic force made the ball return to the ground.

D. A force acting at a distance made the ball leave the ground, and an electrical force made the ball return to the ground.
Chemistry
2 answers:
otez555 [7]3 years ago
8 0

Answer:

B

Explanation:

the gravitational force is a big play.

topjm [15]3 years ago
6 0

Answer: the answer is B.) A contact force made the ball leave the ground, and a gravitational force made the ball return to the ground.

Explanation: hope i helped

You might be interested in
A scientist performs an experiment in which a radium–226 (Ra–226) atom decays into radon–222 (Rn–222). The scientist concludes t
tangare [24]

Answer:

B)

Explanation:

5 0
3 years ago
Read 2 more answers
What is an example of reactivity?
Vedmedyk [2.9K]
Reactivity is an impetus For which a chemical substance undergoes A chemical either by itself or with another materialWith an overall release of energy
4 0
3 years ago
The ____________________ Era accounts for most of the history of Earth.
Slav-nsk [51]
Pretty sure it's the Precambrian.

6 0
3 years ago
Read 2 more answers
Write the lewis structure for mgi2. draw the lewis dot structure for mgi2. include all lone pairs of electrons.
viktelen [127]
Lewis Structure is drawn in following steps,

1) Calculate Number of Valence Electrons:
    
# of Valence electrons in Mg  =  2
# of Valence electrons in I      =  7
# of Valence electrons in I      =  7
                                               ---------
Total Valence electrons          =  16

2) Draw Mg as a central atom surround it by two atoms of Iodine.

3) Connect each Iodine atom to Mg, and subtract two electrons per bond. In this case we will subtract 4 electrons from total valence electrons. i.e.

Total Valence electrons           16
- Four electrons                    -   4
                                              ----------
                                                  12

4) Now start adding the remaining 12 electrons on more electronegative atoms i.e. Iodine.

The final lewis structure formed is as follow, 

4 0
3 years ago
What is the energy per mole of photons, in kJ/mol, emitted by an argon ion laser which produces a green beam with a frequency of
Serga [27]

Answer:

Energy per mole of photons = 2.31 × 10^2 KJ/mol

Explanation:

Energy, E = hf;

Where h is Planck's constant = 6.63 ×10^-34, and f is frequency of the photons.

E = 6.63 × 10^-34 × 5.8 × 10^14

E = 3.84 × 10^-22 KiloJoules

I mole of photons contains Avogadro's number of particles, 6.02 × 10^23

Therefore, the energy per mile of photon is 3.84 × 10^-22 KJ × 6.02 × 10^23

Energy per mile of photon = 2.31 × 10^2 KJ/mol

5 0
3 years ago
Other questions:
  • Hi i need hel does any one know what P3N2 means ??? .-.
    9·1 answer
  • For the reaction represented by the equation cl2 + 2kbr ® 2kcl + br2, calculate the percentage yield if 200. g of chlorine react
    11·1 answer
  • You decide to boil water to cook noodles. You place the pan of water on the stove
    9·1 answer
  • What is the process of water changing from a gas to a liquid​
    10·1 answer
  • How many rundlets are there in 218 in3?
    13·1 answer
  • I need help on question 1 and 2
    6·2 answers
  • Ce procent de impuritati contine un minereu de siderit, daca din 1500kg minereu s-au obtinut 700kg fier 90% ?
    12·2 answers
  • Fish, amphibians, reptiles, birds, and mammals have similar embryos. They all start with gill slits. Fish and some amphibians gr
    5·1 answer
  • A solution of known concentration is called
    5·1 answer
  • How many neutrons does this atom have?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!