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Lady bird [3.3K]
3 years ago
7

Bob roller skates with a constant speed of 8 km/h. How long will he take to 2 poin

Chemistry
1 answer:
Jet001 [13]3 years ago
6 0

Answer: 1.25 hours (75 minutes)

Explanation: 1 hour / 8 km • (10 km) = 1.25 hours

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Match each SI unit to the quantity it measures mass temperature time electric current
kherson [118]

<u>The S.I unit for the given term:</u>

Mass is expressed in kilogram (kg)

temperature is expressed in kelvin (K)

Time is expressed in seconds (s)

Current is expressed in ampere (A)

<u>Explanation:</u>

<u>Current: </u>

The current can be defined as the electric charge flow in the surface (means ratio of charge per unit time). It is measured in ampere (A)

             Current\ I=\frac{\text { charge }}{\text { time }}

<u>Temperature: </u>

Kelvin (K), the general temperature unit in the international standard units system. The Kelvin scale is an absolute thermodynamic temperature scale that uses absolute zero, a temperature at which all thermal movements end with a classic description of thermodynamics.

<u>Mass: </u>

Mass is both a feature of the objects weight and its resistance measurement to accelerate under the influence of pure force. The mass of the object also determines the gravitational force. The basic unit of mass is kilogram (kg)

<u>Time: </u>

Time is the measurement of how much distance the objects takes to travel from one to another (speed). It is expressed in seconds (s).

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3 years ago
What is a hygrometer?
Archy [21]
A hygrometer is an instrument for measuring the humidity of the air or a gas .
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3 years ago
Water can exist in three states of matter. Imagine examining the changes of state from solid to liquid to gas by adding to ice.
loris [4]

<u>Answer:</u>

<em>We know water can exist in all three states be it solid or liquid or gas the only difference between the three states is the temperature at which they exist. </em>

<u>Explanation:</u>

When the temperature moves towards colder region the state of water changes to solid while when the temperature moves to water region the state of water changes to gas.

This little experiment can be done with the help of ice at room temperature. The more ice is applied to water it will turn to ice but removal of eyes in room temperature. And will make it turn to water and complete removal of eyes with application of heat would make it into vapour.

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3 years ago
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Fuel is injected at which state diesel cycle
frez [133]
The Diesel cycle<span> is a combustion process of a reciprocating </span>internal combustion in the cylinders of the engine<span>. In it, </span>fuel<span> is ignited by heat generated during the compression of air in the combustion chamber, into which fuel is then injected and the exhaust from the combustion is pushed out the exhaust pipe or brought out by a turbo </span>
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3 years ago
What is the mass of an object if its height is 10 meters above ground and its gravitational potential energy (GPE) is 3920 Joule
Serjik [45]

Answer:

40

Explanation:

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3920/10/9.8

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