Ask question

Ask question

All categories

3 years ago

5

The Celsius temperature of –273° C is termed “absolute zero” and is the initial value on the metric unit of temperature, the Kel

vin scale. One degree Celsius is defined to be the same sized interval as one degree on the Kelvin scale.
What would a temperature of zero degrees on the Celsius scale be on the Kelvin scale?

1 answer:

Kazeer [188]3 years ago

7 0

Answer:

273 Kelvin

Explanation:

If -273 Celsius is 0 Kelvin, then 273 Kelvin will be 0 Celsius.

You might be interested in

A dolphin leaps out of the water at an angle of 36.6° above the horizontal. The horizontal component of the dolphin's velocity i

Mariana [72]

Answer:

Explanation:

Given

Dolphin leaps out an angle $\theta =36.6^{\circ}$

Horizontal component of dolphin velocity $u_x=7.87\ m/s$

Suppose u is the launch velocity of dolphin

therefore $u\cos \theta =u_x---1$

and vertical velocity $u_y=u\sin \theta ----2$

divide 1 and 2 we get

$\tan \theta =\frac{u_y}{u_x}$

$u_y=u_x\tan \theta$

$u_y=7.87\cdot \tan (36.6)$

$u_y=5.84\ m/s$

4 0

3 years ago

A cart of mass M = 2.40 kg can roll without friction on a level track. A light string draped over a light, frictionless pulley c

sergiy2304 [10]

Answer:

Part a)

$a_{hanger} = g - \frac{T}{m}$

Part b)

$a_{cart} = \frac{T}{M}$

Part c)

$a = \frac{mg}{M + m}$

Part d)

$a = 1.35 m/s^2$

Explanation:

Part a)

For hanger we know that it will have tension force upwards while it has downwards its weight so we will have

$mg - T = ma$

so we have

$a_{hanger} = g - \frac{T}{m}$

Part b)

now for car that is rolling on the floor the net force is given as

$F = Ma$

$T = Ma$

$a_{cart} = \frac{T}{M}$

Part c)

now we know that the cart and the hanger both are connected to each other

so they must have same acceleration

so we will have

$T = Ma$

$mg - Ma = ma$

$a = \frac{mg}{M + m}$

Part d)

now we know that

M = 2.40 kg

m = 0.50 kg

so we will have

$a = \frac{0.50(9.81)}{2.40 + 0.50}$

$a = 1.35 m/s^2$

6 0

3 years ago

A circuit has a voltage drop of 60.0 V across a 120.0 resistor that carries a current of 0.500 A. What is the power conducted by

olasank [31]

Answer:

Power, P = 30 W

Explanation:

We have,

Voltage drop of a circuit is 60 V

Resistance of the resistor is 120 ohms

Current across the circuit is 0.5 A

It is required to find the power conducted by the resistor. Power conducted by a resistor is given by :

$P=VI$

V and I are voltage and current

$P=60\times 0.5\\\\P=30\ W$

So, the power conducted by the resistor is 30 watts.

3 0

2 years ago

An airplane increases its velocity from 60m/s to 80m/s in a time of 10s.

Elenna [48]

$\huge\fbox{Answer ☘}$

$acceleration \: = \frac{v - u}{t} \\ = > \frac{80 - 60}{10} \\ \\ = > \frac{20}{10} \\ \\ = > 2m \: s {}^{ - 2}$

hope helpful ~

4 0

2 years ago

Anastasy [175]

nAnswer:

uyui

Explanation:

4 0

3 years ago