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Nina [5.8K]
3 years ago
15

5. If the line on a speed-time graph is not horizontal, what does that tell you about its

Physics
1 answer:
erik [133]3 years ago
4 0

Answer:

The object is not at a constant speed. It is either gaining speed or losing speed.

Explanation:

A speed-time graph measures how fast you are going in a certain amount of time.

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Which of the following is a chemical property of matter?
adoni [48]

Answer:

The correct answer is combustibility

Explanation:

A chemical property of a matter is a property in which a matter has the tendency to change its form through chemical reaction(s).

A matter is said to have combustibility property if it can undergo combustion. Combustion is a chemical process in which a substance burns in excess oxygen to produce carbon dioxide and water.

Consider the equation below

CH₄ + O₂ ⇒ CO₂ + H₂O

The equation above shows methane burning in excess oxygen to produce carbon dioxide and water

7 0
4 years ago
Read 2 more answers
There are two unitless vectors:
Hunter-Best [27]

Answer:

200.38^0

Explanation:

Given the forces:

F1 = 8.92 i + 17.37 j

F2 = 8.31 i - 10.97 j

If a third vector is added to them such that they add up to to the null vector as F1 + F2 + F3 = 0

then to get F3:

F3 = -F2-F1

F3 = -(8.31 i - 10.97 j)-(8.92 i + 17.37 j )

F3 = -8.31 i + 10.97 j-8.92 i - 17.37 j

F3 = -8.31i-8.92i+10.97j-17.37j

F3 = -17.23i-6.4j

from the vector:

x = -17.23 and y = -6.4

angle of the third vector with respect to the +x-axis is expressed as:

\theta = tan^{-1}\frac{y}{x}\\ \theta = tan^{-1}\frac{-6.4}{-17.23}\\\theta = tan^{-1}0.3715\\\theta = 20.38^0

Hence the angle the vector makes with the x axis will be \theta = 180+20.38 = 200.38^0

4 0
4 years ago
A.5 kg model rocket launches with a thrust of 5 n in the upward direction. can it lift off of the ground? (hint: gravity is pull
Sphinxa [80]

Answer:

F = F2 - F1     where F is the net force upwards

F = 5 - (.5 * 9.8) = (5 - 4.9) N = .1 N

Since there is a net force in the upwards direction the rocket should experience an upwards acceleration.

8 0
2 years ago
What best explains how two oxygen atoms, each with six valence electrons, can bond with each other?
MAXImum [283]
Well it depends if there negative or positive
5 0
4 years ago
Read 2 more answers
What does a photovoltaic cell do?
Pie

Answer:

last option

Explanation:

photovoltaic cell is when the sun's energy will be converted to as electricity causing an effect to create light for houses

8 0
3 years ago
Read 2 more answers
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