Ask question

Ask question

All categories

3 years ago

6

How much energy must be absorbed by water with a mass of 0.5 kg in order to raise the temperature from 30°C to 65°C? Note: Water

has a specific heat of 4,190 J/kg °C

1 answer:

Setler79 [48]3 years ago

8 0

Answer:

Q = 73325 J or 73.325 KJ

Explanation:

You might be interested in

HELP PLEASE DUE IN 3 MINUTES

diamong [38]

Answer:

tectonic plate movement

Explanation:

6 0

2 years ago

What keeps the balanced rock balanced

pogonyaev

Hello,

Here is your answer:

The proper answer to this question is "because of there substantial size the rock rests on another rock which keeps it balanced".

If you need anymore help feel free to ask me!

Hope this helps!

5 0

3 years ago

The average radius of Mars is 3,397 km. If Mars completes one rotation in 24.6 hours, what is the tangential speed of objects on

choli [55]

Answer:

25 times the average speed

7 1

3 years ago

Read 2 more answers

A racing car travels on a circular track of radius 158 m, moving with a constant linear speed of 19.1 m/s. Find its angular spee

SOVA2 [1]

Answer:

$\omega=0.12\frac{rad}{s}$

Explanation:

In a uniform circular motion, since a complete revolution represents 2π radians, the angular velocity, which is defined as the angle rotated by a unit of time, is given by:

$\omega=\frac{2\pi}{T}(1)$

Here T is the period, that is, the time taken to complete onee revolution:

$T=\frac{2\pi r}{v}(2)$

Replacing (2) in (1):

$\omega=\frac{2\pi}{\frac{2\pi r}{v}}=\frac{v}{r}\\\omega=\frac{19.1\frac{m}{s}}{158m}\\\omega=0.12\frac{rad}{s}$

3 0

3 years ago

What force is used to make the back-and-forth motion of a swing higher?

Eddi Din [679]

Answer:

its a

Explanation:

scrape - push or pull a hard or sharp implement across (a surface or object) so as to remove dirt or other matter.

5 0

3 years ago

Read 2 more answers