1. The motion of an object with constant acceleration is also known as ________. *
Motion
Uniform Motion
Constant Motion
Uniformly Accelerated Motion

2. A sepaktakraw ball is hit vertically upward by a player. What is its acceleration after 1 second? *
0
1 m/s2
19.8 m/s2
-9.8 m/s2

3. If a freely falling ball is somehow equipped with a speedometer, by how much would its speed-reading increase for every second? *
0 m/s
9.8 m/s
10 m/s
20 m/s

4. It is any motion of a body where gravity is the only force acting upon it (no friction or air resistance). *
freefall
gravity
acceleration
velocity
5. Objects fall at constant acceleration also known as acceleration due to gravity equivalent to *
1 point
9.8 m/s
9.8 m2/s
-9.8 m/s2
20 m/s
For questions 6-10, consider the illustration below.

6. At what angle of release makes the projectile reach the maximum height? *
15°
30°
45°
60°
75°
60° & 30°
30° & 75

7. Which of the following pairs of angles will make projectiles reach the same range? *
15°
30°
45°
60°
75°
60° & 30°
30° & 75

8. Which angle of release makes the projectile reach the longest range? *
15°
30°
45°
60°
75°
60° & 30°
30° & 75

9. Which angle of release are complementary angles? *
15°
30°
45°
60°
75°
60° & 30°
30° & 75

10. At what angle should a water hose be aimed for the water to land with the greatest horizontal range?
15°
30°
45°
60°
75°
60° & 30°
30° & 75

11. Which of the following statements describes momentum? *
the product of body's mass and velocity
the sum of body's mass and velocity
the product of body's mass and acceleration
the sum of body's mass and acceleration

12. Two identical cars are travelling along EDSA. Which of the two cars would have a greater momentum? *
the slower car
the faster car
both have the same momentum

13. Which has more momentum, a huge truck that is not moving or a bicycle that is moving? *
truck
bicycle
both have the same momentum

14. What are the two factors that affect the momentum of an object? *
velocity and time
force and velocity
mass and velocity
acceleration and force

15. Which has more momentum, a heavy truck moving at 30 km/h or a light truck moving at 30 km/hr? *
heavy truck
light truck
both have the same momentum

Answer:

22

Explanation:

3x4+  5x2

Answer:

is your answe b?

Explanation:

Im really asking

Answer:

b,,

Explanation:

Answer:

3. 17

4. 18

5. 10

6. Cation

7. 35

8. 81

9. 36

10. Anion

11. 37

12. 48

13. +1

14. Cation

15. 5

16. 5

17. 2

18. Cation

Explanation:

Situation 1

The mass number = 35 = The sum of the protons and the neutrons in an atom

The number of protons = 17

The net charge = 1

3. The atomic  number = The number of proton = 17

4. The number of neutrons = Mass number - Atomic number

∴ The number of neutrons = 35 - 17 = 18

5. Given that the net charge of the atom = +1, the number of electrons in the atom is 1 less than the number of protons

Therefore, the number of electrons = 11 - 1 = 10

6. Positively charged ions are called a cation

The atom is a positively charged and it is therefore it is a cation

Situation 2

The number of protons =  35

The number of neutrons = 46

The net charge = -1

7. The atomic number = The number of protons = 35

8. The mass number = The number of protons + The number of neutrons

∴ The mass number = 35 + 46 = 81

9. The number of electrons = The number of protons + 1

∴ The number of electrons = 35 + 1 = 36

10. The type of atom is an anion

Situation 3

Atomic number = 37

Mass number = 85

Number of electrons = 36

11. The number of protons = The atomic number = 37

12. The number of neutrons = The mass number - The atomic number

∴ The number of neutrons = 85 - 37 = 48

13. The net charge = The atomic number - The number of electrons

∴ The net charge = 37 - 36 = +1

14. Given that the net charge = +1, the type of atom is a cation

Situation 4

Mass number = 11

Number of neutrons = 6

Net charge = +3

15. The atomic number = The mass number - The number of neutrons

∴ The atomic number = 11 - 6 = 5

16. The number of protons = The atomic number = 5

17. Given that the net charge is +3, we have;

The number of electrons = The number of protons - The net charge

∴ The number of electrons = 5 - (+3) = 2

18. The type of atom with a net positive charge (+3) is a cation

Answer:

Anhydrous calcium chloride  dissolves and becomes liquid

Anhydrous copper (ii) sulphate will produce crystal particles

Explanation:

Anhydrous calcium chloride is deliquescent and hence when it is exposed to air, it absorbs water from air. After absorbing water, it dissolves and after some time a pool of clear liquid appears.

Anhydrous copper (ii) sulphate will form crystal structures  and the following reaction will takes place

CuSO4 + 5 H20 --> CuSO4.5H2O

Answer:

A- 286.3L

Explanation:

Using the ideal gas law equation;

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = gas law constant (0.0821 Latm/molK)

T = temperature (K)

According to the information given in this question;

P = 1.14atm

V = ?

n = 15moles

T = 265K

Using PV = nRT

V = nRT ÷ P

V = (15 × 0.0821 × 265) ÷ (1.14)

V = 326.35 ÷ 1.14

V = 286.27 L

V = 286.3L

Answer:

Amoeba since it can come together as a multicellular with other amoebas, but still act as one giant living cell.

Explanation: i read in a book that red-slime molds can do that. hope it wasn't too far too late recent.

Answer:

it may also become impure,I think.

Answer:

nooooo it is not equal to it

Answer: The volume of stock solution needed is 62.5 mL

Explanation:

A solution consists of solute and solvent. A solute is defined as the component that is present in a smaller proportion while the solvent is defined as the component that is present in a larger proportion.

To calculate the volume of stock solution needed, the formula used is:

[tex]C_1V_1=C_2V_2[/tex]             ....(1)

where,

[tex]C_1\text{ and }V_1[/tex] are the concentration and volume of stock solution.

[tex]C_2\text{ and }V_2[/tex] are the concentration and volume of diluted solution.

We are given:

[tex]C_1=3.00M\\V_1=?mL\\C_2=1.25M\\V_2=150mL[/tex]

Putting values in equation 1, we get:

[tex]3.00\times V_1=1.25\times 150\\\\V_1=\frac{1.25\times 150}{3.00}\\\\V_1=62.5mL[/tex]

Hence, the volume of stock solution needed is 62.5 mL

Answer:

Both Arrhenius Base and Bronsted Lowry Base

Both Arrhenius Acid and Bronsted Lowry Acid

Arrhenius Acid Only

Arrhenius Base Only

Bronsted Lowry Acid Only

Bronsted Lowry Base Only

Explanation:

Answer: Groups

Explanation:

I took the quiz

Answer:

2. 181.25 K.

3. 0.04 atm.

Explanation:

2. Determination of the temperature.

Number of mole (n) = 2.1 moles

Pressure (P) = 1.25 atm

Volume (V) = 25 L

Gas constant (R) = 0.0821 atm.L/Kmol

Temperature (T) =?

The temperature can be obtained by using the ideal gas equation as illustrated below:

PV = nRT

1.25 × 25 = 2.1 × 0.0821 × T

31.25 = 0.17241 × T

Divide both side by 0.17241

T = 31.25 / 0.17241

T = 181.25 K

Thus, the temperature is 181.25 K.

3. Determination of the pressure.

Number of mole (n) = 10 moles

Volume (V) = 5000 L

Temperature (T) = –10 °C = –10 °C + 273 = 263 K

Gas constant (R) = 0.0821 atm.L/Kmol

Pressure (P) =?

The pressure can be obtained by using the ideal gas equation as illustrated below:

PV = nRT

P × 5000 = 10 × 0.0821 × 263

P × 5000 = 215.923

Divide both side by 5000

P = 215.923 / 5000

P = 0.04 atm

Thus, the pressure is 0.04 atm

Answer:

im solving now

Explanation:

Answer:

this is a required answer. look it once.

Answer:

A turbine takes the kinetic energy of a moving fluid, air in this case, and converts it to a rotary motion.

Explanation:

Answer:

Explanation:

Ultimately, milk can be described as both. The actual description depends on the individual and/or company involved. For example, in many places milk if extracted from cows, bottled, and delivered to the end consumer. In this case, milk would be considered as natural because nothing has been done to change its nutritional composition. This changes when companies begin to pasteurise and homogenize the milk so that it has a longer shelf life and create different variations. The milk in this case no longer has the same nutritional composition and has been altered, and is therefore considered as processed.

Answer:

1.21 mol KClO₃

General Formulas and Concepts:

Atomic Structure

Stoichiometry

Explanation:

Step 1: Define

Identify variables

[rxn] 2KClO₃ → 2KCl + 3O₂

[Given] 58.3 g O₂

[Solve] mol KClO₃

Step 2: Identify Conversions

[rxn] 2 mol KClO₃ → 3 mol O₂

[PT] Molar Mass of O: 16.00 g/mol

Molar Mass of O₂: 2(16.00) = 32.00 g/mol

Step 3: Convert

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

1.21458 mol KClO₃ ≈ 1.21 mol KClO₃

Answer:

As the world changes, plants and animals change with it. Aside from a few living fossils, the species we see today are very different from species that lived in the past. Thus, the fossil record can be used to show that organisms changed to meet new conditions. This is the result of evolution of species over time.

hope this helps

have a good day :)

Explanation:

Answer:

Zinc is reduced, The oxidation number of chlorine does not change, and Aluminum is oxidized.

Explanation:

Answer:

206°C

Explanation:

To solve this question we must use the combined gas law:

PV = nRT

Where P is pressure in atm, V is volume in liters, T absolute temperature, n are moles of gas, and R gas constant.

Pressure:

450kPa * (1atm / 101.325kPa) = 4.441atm

Volume:

658mL = 0.658L

Moles -Molar mass Ne: 20.1797g/mol-

1.50g * (1mol / 20.1797g) = 0.07433 moles

R: 0.082atmL/molK

Replacing to solve T:

T = PV/nR = 4.441atm*0.658L / 0.07433 moles*0.082atmL/molK =

T = 479K

In °C:

479K -273 =

Answer:

p=nRT/V

v=nRT/P

n=PV/RT

t=PV/nR

Answer:

The pH of the solution is basic

Explanation:

as one of the characteristics of the base is to increase the OH concentration in a solution so if the solution has low concentration of OH this means that the solution is basic

Answer:

the answer is 1.1grams is the currect ans

According to the law of conservation of mass, 1.1 grams of calcium carbonate are formed  if 2.2 grams of CaO are used for this reaction.

According to law of conservation of mass, it is evident that mass is neither created nor destroyed rather it is restored at the end of a chemical reaction .

Law of conservation of mass and energy are related as mass and energy are directly proportional which is indicated by the equation E=mc².Concept of conservation of mass is widely used in field of chemistry, fluid dynamics.

Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Antoine Lavoisier in the year 1789.If 56 g CaO gives 46.2 g calcium carbonate then  2.2 g CaO will give 2.2×46.2/56=1.1 g.

Learn more about law of conservation of mass, here:

https://brainly.com/question/28711001

#SPJ6

Answer:

0.0286M

Explanation:

Using the formula as follows:

CaVa = CbVb

Where;

Ca = concentration of HCl acid (M)

Cb = concentration of NaOH base (M)

Va = volume of HCl acid (mL)

Vb = volume of NaOH base (mL)

According to the information provided in this question;

Ca = 0.10 M

Cb = ?

Va = 10mL

Vb = 35mL

Using CaVa = CbVb

Cb = CaVa/Vb

Cb = (0.10 × 10) ÷ 35

Cb = 1 ÷ 35

Cb = 0.0286M