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koban [17]
4 years ago
14

Volunteerism involves giving __________ to others without receiving payment.

Physics
1 answer:
soldier1979 [14.2K]4 years ago
4 0

Answer:

Time and services

I'm sorry If I'm wrong

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How does reducing the volume of a gas affect its pressure if the temperature of the gas and the number of particles are constant
Tema [17]

have no idea but I think the particles would be affected because they would move faster then normal and have the space to

5 0
3 years ago
Ice skaters often end their performances with spin turns, where they spin very fast about their center of mass with their arms f
vampirchik [111]

Answer:

\large \boxed{\text{30 rev/s}}

Explanation:

This question is based on the Law of Conservation of Angular Momentum.

Angular momentum (L) equals the moment of inertia (I) times the angular speed (ω).

L = Iω

If momentum is conserved,

I₁ω₁ = I₂ω₂

Data:

 I₁ = 3.5    kg·m²s⁻¹

ω₁ = 6.0    rev·s⁻¹

 I₂ = 0.70 kg·m²s⁻¹

Calculation:

\begin{array}{rcl}I_{1}\omega_{1} &= &I_{2}\omega_{2}\\\text{3.5 kg$\cdot$m$^{2}$}\times \text{6.0 rev/s} &= &\text{0.70 kg$\cdot$m$^{2}$}\times\omega_{2}\\\text{21 rev/s} &= &0.70\omega_{2}\\\omega_{2} & = & \dfrac{\text{21 rev/s}}{0.70}\\\\&=&\textbf{30 rev/s}\\\end{array}\\\text{The skater's final rotational speed is $\large \boxed{\textbf{30 rev/s}}$}

8 0
4 years ago
When riding your dirt bike you run into a tree which causes your bike to immediately come to a stop. You fly over the handle bar
Natali5045456 [20]
Newton's first law of motion. Because you fly over the handlebars and you land a few feet away on the ground. Your bike would stop immediately because of the unbalanced force.
3 0
4 years ago
Read 2 more answers
Calculate the height of stairs a 60 kg student would have to run in order to burn off 1 Calorie of food energy, which is the equ
Trava [24]

The height of stairs a 60 kg student would have to run in order to burn off 1 Calorie of food energy will be 7.1 meters.

<h3>What is potential energy?</h3>

The potential energy is due to the virtue of the position and the height. The unit for the potential energy is the joule.

Given data;

Mass of student,m = 60 kg

Energy,E = 4190 J

Height of stairs,h=?

The potential energy is mainly dependent upon the height of the object. The potential energy is found as;

Potential energy = mgh

E=mgh

h=E/mg

h= 4190 J / (60 kg× 9.81  m/s²)

h = 7.1 metre

Hence the height of the stairs will be 7.1 meters.

To learn more about the potential energy, refer to the link;

brainly.com/question/24284560

#SPJ1

4 0
3 years ago
At what speed a person having 60 kg mass should run to acquire 750 J kinetic energy?
polet [3.4K]

Mass = 60 kg

K.E = 750 J

v = ?


K.E = (1/2)mv^2


750 = (1/2) × 60 × v^2

v^2 = 150/6

v = √25

v = 5 m/s

____________________     the man should run with a velocity of 5m/s

5 0
4 years ago
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