All categories

3 years ago

Which statement describes between a cup if cold water and a cup of boiling water

1 answer:

4 0

The thermal energy keeps these two changing their temperature over time.

The surrounding temperature (environment) clearly effects the cold water AND the boiling water.

Eventually, both would reach an equilibrium in temperature.

You might be interested in

Short, difficult activities that push your body are called

Reika [66]

Answer: A

Explanation: Any short-duration exercise that is powered primarily by metabolic pathways that do not use oxygen. Examples

of anaerobic exercise include sprinting and weight lifting.

4 0

2 years ago

Read 2 more answers

A man-made satellite orbits the earth in a circular orbit that has a radius of 32000 km. The mass of the Earth is 5.97e 24 kg. W

Gwar [14]

Answer:

= 3521m/s

The tangential speed is approximately 3500 m/s.

Explanation:

F = m * v² ÷ r

Fg = (G * M * m) ÷ r²

(m v²) / r = (G * M * m) / r²

v² = (G * M) / r

v = √( G * M ÷ r)

G * M = 6.67 * 10⁻¹¹ * 5.97 * 10²⁴ = 3.98199 * 10¹⁴

r = 32000km = 32 * 10⁶ meters

G * M / r = 3.98199 * 10¹⁴ ÷ 32 * 10⁶

v = √1.24 * 10⁷

v = 3521.36m/s

The tangential speed is approximately 3500 m/s.

8 0

4 years ago

Read 2 more answers

A worker pushes horizontally on a 34 kg crate with a force of magnitude 110 n . the coefficient of static friction between the c

Vadim26 [7]

Static frictional force = 126.91 N
1st worker force = 110 N
2nd worker = 126.91 – 110 = 16.91 Nelectron1 · 7 years ago.

4 0

3 years ago

An Earth satellite moves in a circular orbit 561 km above Earth's surface with a period of 95.68 min. What are (a) the speed and

crimeas [40]

Explanation:

It is given that,

Radius of earth, r = 6371 km

An earth satellite moves in a circular orbit above the Earth's surface, d = 561 km

So, radius of satellite, R = 6371 km + 561 km = 6932 × 10³ m

Time taken, t = 95.68 min = 5740.8 sec

(a) Speed of the satellite is given by :

$v=\dfrac{d}{t}$

d = distance covered

For circular path, d = 2πR

$v=\dfrac{2\pi \times 6932\times 10^3\ m}{5740.8\ sec}$

v = 7586.92 m/s

(b) Centripetal acceleration is given by :

$a=\dfrac{v^2}{R}$

$a=\dfrac{(7586.92\ m/s)^2}{6932\times 10^3\ m}$

$a=8.3\ m/s^2$

Hence, this is the required solution.

3 0

4 years ago

An example of an atom that has no change is one that has A. 1 proton, 2 electrons, and 3 neutrons B. 3 protons,2 electrons, and

Vikki [24]

Your question asks which is an example of an atom that has no change, or charge.

Your answer would be C). 2 protons, 2 electrons, and 1 neutron

These atoms would be known as a neutral atom.

In order for an atom to be neutral, it must have the same amount of protons and electrons.

We know that Protons are positive

We also know that Electrons are negative

In order for the atom to be neutral, they must have an equal amount of protons and neutrons to "cancel out"

In answer choice C, you would see that there are 2 protons and 2 electrons.

2- 0 = 0, in which allows this atom to be neutral.

Therefore, answer choice C. 2 protons, 2 electrons, and 1 neutron would be your answer.

4 0

3 years ago

Read 2 more answers