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
Nesterboy [21]
3 years ago
5

HELP !!!!!! An object moving forward at 10 m/s suddenly begins moving backward at 5 m/s. What is the most accurate explanation f

or this change?
The object was traveling in a straight line until it hit a brick wall and bounced backward.



The force pushing back on the object became greater than the force pushing the object forward.



The forces acting on the object were equal at first. Then the forces became unequal, causing the object to change its direction.



The forces were balanced in the forward direction. Then they became balanced in the backward direction.
Chemistry
1 answer:
Nana76 [90]3 years ago
8 0
It moves backwards 5m/s slower that forward
You might be interested in
How does the body maintain the equilibrium between oxygen and hemoglobin at high altitudes?
mario62 [17]
Individuals who are both born and raised in high altitudes will have their bodies re-establish equilibrium shift by producing more hemoglobin, which allows for more oxygen to be bound to the heme protein and thus cause an equilibrium shift to the right.
5 0
3 years ago
Given the following equation: 8 Fe + S 8  8 FeS
sleet_krkn [62]

Answer:

Explanation:

so u can work out the amount of moles of S8 by using

moles=mass/mr

=16/32.1=0.498moles

then use the molar ratio of

S : Fe

1:1 so the moles of Fe is the same 0.498

The use the equation

mass = mr x moles

=55.8 x 0.498

=27.78

so 27.8 g

hope this make sense :)

8 0
3 years ago
Which elements on the periodic table have the highest ionization energies?
coldgirl [10]

I think its<em> A) </em><u>Nonmetals in the upper right </u>

5 0
3 years ago
Read 2 more answers
After 15 minutes, 30 g of a sample of polonium-218 remain unchanged. If the original sample had a mass of 960 g, what is the hal
Keith_Richards [23]
Q1. The answer is 3 minutes.

Let's first calculate the remaining amount in percent:
If 960g is 100 percent (starting amount), 30 g is how many percents:
960 g : 100% = 30 g : x
x = 30 g * 100% / 960 g = 3.125% = 0.03125

Now, using the formula to calculate the number of half-lives:
(1/2)ⁿ = x,
where
x is the remaining amount: x = 0.03125
n is the number of half-lives
1/2 stands for half-life.

(1/2)ⁿ = 0.03125
⇒ n*log(1/2) = log(0.03125) 
    n = log(0.03125)/log(1/2) = log(0.03125)/log(0.5) = -1.505/-0.301 ≈ 5

The number of half-lives is 5.
Now, <span>the number of half-lives (n) is a quotient of total time elapsed (T) and length of half-life (L):
n = T/L
We know:
n = 5
T = 15 min
L = ?

Thus
L = T/n
L = 15 min/5 = 3 minutes

Q2. Filtration should be chosen.
Filtration and distillation are used to separate mixtures - filtration for the separation of heterogeneous mixtures and </span>distillation for the separation of homogeneous mixtures. Imagine that your pile of soil is a mixture. It consists of different components (the leaves, acorns, twigs), so it is the heterogeneous mixture. Therefore, to separate the leaves, acorns, twigs you will use filtration.
5 0
4 years ago
Ms. Brown asked her students to combine some regular cow's milk with white vinegar. Each group mixed 1 cup of warm milk with 4 t
AleksandrR [38]

Answer:

d

Explanation:

3 0
3 years ago
Other questions:
  • A 9.780 -g gaseous mixture contains ethane (C2H6) and propane (C3H8). Complete combustion to form carbon dioxide and water requi
    8·1 answer
  • The solubility of two slightly soluble salts of M^2+ , MA and MZ_2, are the same, 4 x 10^â4 mol/L.
    14·1 answer
  • Nitrate is a common contaminant coming from run off from fertilizer use, leaking from septic tanks and sewage; and erosion of na
    10·1 answer
  • C3H18 +<br> O2<br> +<br> CO2 + H2O<br> Balance equation
    7·1 answer
  • I need 3 elements with sinilar properties and reasons why they are similar, please :)
    7·1 answer
  • B) Which of the following is derived quantity?<br>i. Length<br>ii. Temperature<br>iii. Density​
    7·1 answer
  • Upon balancing the equation below, how many moles of sulfuric acid are needed to react completely with 6.4 moles of lithium hydr
    6·1 answer
  • Amplitude measures the light's
    7·2 answers
  • What is one reason that abiotic factors are important in an ecosystem?
    12·1 answer
  • What is the standard cell notation of a galvanic cell made with zinc and aluminum
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!