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Reil [10]
3 years ago
7

The motion of a car on a position-time graph is represented with a horizontal line. What does this indicate about the car’s moti

on?
Physics
2 answers:
Nitella [24]3 years ago
3 0
The car is staying still. either getting petrol or stopped at a light .

Novosadov [1.4K]3 years ago
3 0

Answer:

The car is not moving

Explanation:

On a position-time graph, the gradient of the line represents the velocity. If the gradient is positive, then the car is speeding up, if it is negative, then the car is slowing down, if it is a horizontal line (where the gradient is zero) then the velocity is zero.

Hence, the horizontal line indicated that the car is not moving.

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Mercury is the 80th position in the periodic table how many protons does it have
snow_lady [41]
Errrrr, it has 80.




80 is the correct answer
4 0
3 years ago
Read 2 more answers
We start with 5.00 moles of an ideal monatomic gas with an initial temperature of 128 ∘C. The gas expands and, in the process, a
o-na [289]

Answer:

The final temperature of the gas is <em>114.53°C</em>.

Explanation:

Firstly, we calculate the change in internal energy, ΔU from the first law of thermodynamics:

ΔU=Q - W

ΔU = 1180 J - 2020 J = -840 J

Secondly, from the ideal gas law, we calculate the final temperature of the gas, using the change in internal energy:

ΔU=\frac{3}{2} nRΔT

ΔU=\frac{3}{2} nR(T_{2} -T_{1} )

Then we make the final temperature, T₂, subject of the formula:

T_{2} =\frac{2ΔU}{3nR} +T_{1}

T_{2} =\frac{2(-840J)}{(3)(5)(8.314J/mol.K)} +128 deg.C

T_{2} =114.53 deg.C

Therefore the final temperature of the gas, T₂, is 114.53°C.

7 0
3 years ago
A 12.65 g sample of a radioactive substance is allowed to decay for 17.22 min. At that time, the sample weighed 3.115 g. What is
Mademuasel [1]

Answer:

8.61 min

Explanation:

original mass= 12.65

first half life = 12.65/2 = 6.325

second half life = 6.325/2 = 3.1625

Note : 3.1625 is the closest to the value (3.115) given so we work with it

total time for decay =17.22

therefore two decays = 17.22/2= 8.61

8 0
3 years ago
In what way were augusts<br> comte and immanual Kant<br> alike
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1. they were both educated in france
2. they both felt that the end of the monarchy was inevitable
3. they were both artist
4. they both felt that science would improve the world
5 0
3 years ago
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The capacity of one brain area to take over the functions of another damaged brain area is known as brain: (2 points)
Ket [755]

Answer: Plasticity

Explanation: Plasticity is defined as the brain's ability to adapt to changes that may result from damage or birth defects. The adaptation that usually occurs is when affected area of the brain is taken over by healthy functioning cortex.

7 0
3 years ago
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