A subway car moves at a constant speed of 10 m/s over a period of 10 s. What is the instantaneous speed halfway through this motion​

Answers

Answer 1

Answer:  10 m/s

We're told the speed is constant, so it's not changing throughout the time period given to us. So throughout the entire interval, the speed is 10 m/s.


Related Questions

what do electrons move from

Answers

Answer:

Negatively charged, to positively charged parts

Explanation:

Electrons are negative, negative is attracted to positive.

How much time is required for a 20 Coulombs charge to flow through a point if the current is 2 amperes? help plzzzzz

Answers

The time required for a 20 coulombs charge to flow through a point if the current is 2 amperes will be 10 seconds.

What is electric current?

Electric current is defined as the ratio of the charge flow in a given time interval. It is denoted by I. It has the unit is ampere.

The given data in the problem is;

t is the time is required

q is the charge = 20 Coulombs

I is the current is= 2 amperes

The formulas for the elctric current are given as;

[tex]\rm I = \frac{q}{t} \\\\\ \rm t = \frac{q}{I} \\\\ \rm t = \frac{20}{2} \\\\ t=10 \ sec[/tex]

Hence the time required for a 20 coulombs charge to flow through a point if the current is 2 amperes will be 10 seconds.

To learn more about the electric current refer to the link;

https://brainly.com/question/2264542

The time required for a 20 coulombs charge to flow through a point if the current is 2 amperes will be 10 seconds.

What is electric current?

Electric current is defined as the ratio of the charge flow in a given time interval. It is denoted by I. It has the unit is ampere.

The given data in the problem is;

t is the time is required

q is the charge = 20 Coulombs

I is the current is= 2 amperes

The formulas for the electric current are given as;

[tex]I=\dfrac{q}{t}[/tex]

[tex]t=\dfrac{q}{I}[/tex]

[tex]t=\dfrac{20}{2}[/tex]

[tex]t=10 sec[/tex]

Hence the time required for a 20 coulombs charge to flow through a point if the current is 2 amperes will be 10 seconds.

To learn more about the electric current refer to the link;

brainly.com/question/2264542

While spending the weekend in your cabin, you burn wood in your pot-bellied stove to heat a kettle of water for tea.

Answer the following questions for 2 points each:

1. What type of energy does the wood have in this situation. Explain your answer.

2. What type of energy is this transformed into as the wood it burned in the stove. Explain your answer.

3. What type of heat transfer is being used to warm the kettle of water? Why does the water eventually boil?

Answers

Answer: 1 = Heat

2=gas

3=it gets hot enough to boil because the metal conducts the heat into the water to heat it up and eventually boil.

Explanation: its common sense

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