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Fittoniya [83]
2 years ago
13

A ball was kicked by a player, the ball was stationary, then it gains a velocity of 5 m/s North. Did the ball accelerate or no?

How can you tell?
Chemistry
1 answer:
Tomtit [17]2 years ago
7 0

Answer:

yes

Explanation:

it started moving North 5 m/s

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Match the vocabulary terms to their definitions.
mariarad [96]

Answer:

Units Accuracy = the degree to which a measurement can be

Column Matter = anything that has mass and occupies

Space Precision = an indication of how close a measurement is to the correct

Replicated Meniscus = the curved top surface of a liquid

Result Density = the mass of an object per unit volume

Volume = space occupied, measured in cubic

Explanation:

In the fields of science , the Unit Accuracy of a measurement system is the degree of closeness of measurements of a quantity to that quantity's true value.

Column Matter can be defined as anything that had mass and occupies space.

Space Precision refers to the closeness of the measurements to each other. It's the quality, condition, or fact of being exact and accurate.

Replicated Meniscus is the curve in the upper surface of a liquid close to the surface of the container or another object, caused by surface tension. It can be either concave or convex, depending on the liquid and the surface.

Result Density can be defined as the mass of an object per unit volume.

Volume: The space occupied by any object is called the volume. The volume of an object is the amount of space occupied by the object. Volume is measured in "cubic units".

8 0
3 years ago
Which is the strongest base among NO3-, So4-, CH3COO- and Cl-​
vodomira [7]

Answer:

CH3COO-

Explanation:

The conjugate base if a weak acid is a strong base, and the conjugate base of a strong acid is a weak base.

Acetic acid is a weak acid, so its conjugate base (CH3COO-) is a strong base.

Nitric, sulfuric, and hydrochloric acids are all strong acid. Their conjugate bases (NO3-, SO4^2-, and Cl- are all weak bases.

3 0
3 years ago
At 1 atm, how much energy is required to heat 39.0 g of h2o(s at –24.0 °c to h2o(g at 121.0 °c?
earnstyle [38]
Q = mcΔt, q = energy [J] m = mass (of water) [g]; c = specific heat capacity of water [J g⁻¹ K⁻¹/°C⁻¹]; Δt = change in temperature [K/°C]
Δt = 121 - -24 = 145
q = 39 × 4.18 × 145
q = 23637.9 J
4 0
3 years ago
Which one is it that it’s talking about?
Romashka-Z-Leto [24]
A physical change.......
7 0
3 years ago
I really need help it's urgent help ! Don't ignore it .Your work will be appreciated and don't spam
gtnhenbr [62]

ツ here your answer

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  • A)Potassium bromide(aq) + Barium iodide(aq) → Potassium iodide(aq) + Barium bromide(s)

  • 2KBr(aq)+BaI2(aq) → 2KI(aq)+BaBr2(s)

  • B)Balance the Chemical Equation for the reaction of calcium carbonate with hydrochloric acid: 
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<em><u>M</u></em><em><u>a</u></em><em><u>r</u></em><em><u>k</u></em><em><u> </u></em><em><u>m</u></em><em><u>e</u></em><em><u> </u></em><em><u>i</u></em><em><u>n</u></em><em><u> </u></em><em><u>b</u></em><em><u>r</u></em><em><u>a</u></em><em><u>i</u></em><em><u>n</u></em><em><u>l</u></em><em><u>i</u></em><em><u>s</u></em><em><u>t</u></em>

8 0
2 years ago
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