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3 years ago

Approximately how many kelvins are equal to 60°c?

Physics

2 answers:

ella [17]3 years ago

8 0

333.15 Kelvins are equal to 60 degrees celsius

Scrat [10]3 years ago

3 0

0°C = 273.15 K

Kelvin = °C + 273.15

If you only want it approximately, then call it 333K .

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When did robert fulton invent the steamboat

bekas [8.4K]

Answer:

1807

Explanation:

Robert Fulton (1765–1815) was an American engineer and inventor who is widely known for developing a commercially successful steamboat called Clermont. In 1807, that steamboat took passengers from New York City to Albany and back again, a round trip of 300 miles, in 62 hours.

7 0

3 years ago

Some expressways are curved, banked and designed to maximize ___________ at higher speeds.

Liono4ka [1.6K]

Answer:

Safety

Explanation:

Expressways are banked to resist centifugal action

6 0

3 years ago

A generator produces 60 A of current at 120 V. The voltage is usually stepped up to 4500 V by a transformer and transmitted thro

aalyn [17]

Answer:

The percentage power lost in the transmission line if the voltage not stepped up is 50%.

Explanation:

Given that,

Current = 60 A

Voltage = 120 V

Resistance = 1.0 ohm

We need to calculate the power

Using formula of power

$P=I\times V$

Where,I =current

V = voltage

Put the value into the formula

$P=60\times120$

$P=7200\ W$

We need to calculate the percentage power lost in the transmission line

If the voltage is not stepped up

Then, the power loss

$P'=I^2\times R$

Put the value into the formula

$P'=(60)^2\times1$

$P'=3600\ W$

The percentage power loss P''

$P''=\dfrac{P'}{P}\times100=\dfrac{3600}{7200}\times100$

$P''=50\%$

Hence, The percentage power lost in the transmission line if the voltage not stepped up is 50%.

5 0

3 years ago

Material A is less optically dense than material B. How can you tell from the diagram above?

zimovet [89]

You can tell because the line bends and the closer it is to horizontal or past horizontal it is more dense

7 0

3 years ago

A player passes a basketball to another player who catches it at the same level from which ot was thrown. The initial speed of t

34kurt

(a) The initial direction of the ball is horizontal.

(b) The time of flight of the ball is 0.65 s.

<h3>Initial direction of ball</h3>

The initial direction of the ball is horizontal since the player catches the ball at the same level which implies that the speed of the of the ball was constant through out the motion.

<h3>Time of flight of the ball</h3>

The time of flight of the ball is calculated using the following kinematic equation.

$t = \frac{X}{v_x} \\\\t= \frac{4.6}{7.1} \\\\t = 0.65 \ s$

Learn more about time of flight here: brainly.com/question/4441382

7 0

3 years ago