All categories

2 years ago

A chef fills 50ml container with 43.5 g of cooking oil. what is the density of the oil?

Physics

1 answer:

Rama09 [41]2 years ago

3 0

Answer:

0.87 g per ml

Explanation:

D=M/V

43.5/50=0.87

You might be interested in

A 1.60 m cylindrical rod of diameter 0.550 cm is connected to a power supply that maintains a constant potential difference of 1

bija089 [108]

Answer:

Part a)

$\rho = 1.35 \times 10^{-5}$

Part b)

$\alpha = 1.12 \times 10^{-3}$

Explanation:

Part a)

Length of the rod is 1.60 m

diameter = 0.550 cm

now if the current in the ammeter is given as

$i = 18.7 A$

V = 17.0 volts

now we will have

$V = I R$

$17.0 = 18.7 R$

R = 0.91 ohm

now we know that

$R = \rho \frac{L}{A}$

$0.91 = \rho \frac{1.60}{\pi(0.275\times 10^{-2})^2}$

$\rho = 1.35 \times 10^{-5}$

Part b)

Now at higher temperature we have

$V = I R$

$17.0 = 17.3 R$

R = 0.98 ohm

now we know that

$R = \rho \frac{L}{A}$

$0.98 = \rho' \frac{1.60}{\pi(0.275\times 10^{-2})^2}$

$\rho' = 1.46 \times 10^{-5}$

so we will have

$\rho' = \rho(1 + \alpha \Delta T)$

$1.46 \times 10^{-5} = 1.35 \times 10^{-5}(1 + \alpha (92 - 20))$

$\alpha = 1.12 \times 10^{-3}$

Answer:

Part a)

$i = 1.55 A$

Part b)

$v_d = 1.4 \times 10^{-4} m/s$

Explanation:

Part a)

As we know that current density is defined as

$j = \frac{i}{A}$

now we have

$i = jA$

Now we have

$j = 1.90 \times 10^6 A/m^2$

$A = \pi(\frac{1.02 \times 10^{-3}}{2})^2$

so we will have

$i = 1.55 A$

Part b)

now we have

$j = nev_d$

so we have

$n = 8.5 \times 10^{28}$

$e = 1.6 \times 10^{-19} C$

so we have

$1.90 \times 10^6 = (8.5 \times 10^{28})(1.6 \times 10^{-19})v_d$

$v_d = 1.4 \times 10^{-4} m/s$

8 0

3 years ago

There are both enviromental and food stimuli that can disrupt sleep true or false

konstantin123 [22]

The answer is true. I hope that this helps you out!!

4 0

3 years ago

you arrive at an intersection with traffic lights that arent working because of a power outage .what do you do

ElenaW [278]

Use it as a four way stop.

6 0

3 years ago

Read 2 more answers

ILL MARK BRAINIEST IF YOU DO THIS CORRECTLY!!!

IRINA_888 [86]

Explanation:

1)5.8m/s

2)5.15m/s^2

3)12.69m/s

8 0

3 years ago

After impairing memory, focus, and reasoning, alcohol next causes a deterioration in __________.

Lera25 [3.4K]

Hi there!

The next thing that alcohol affects is <span>B. basic muscle control. The reason for this is that alcohol is what is called a "depressant" which means it relaxes the body and mind during the euphoria.

-Your friend, ASIAX</span>

4 0

2 years ago