All categories

4 years ago

What values are equal to zero when an object is not moving

Physics

1 answer:

ohaa [14]4 years ago

4 0

Distance
Displacement
Speed
Velocity
Acceleration
Kinetic energy
force of Friction

You might be interested in

Cu ce viteza s-a deplasat un vehicul daca la ora 16:45 se afla in dreptul bornei kilometrice 169 iar la ora 17:50 se afla la bor

jolli1 [7]

Answer:

Explanation:

the answer is 7

3 0

3 years ago

what is the period of a sound wave whose wavelength is 20.0m? use values from the book and show all of your work

Lera25 [3.4K]

The wavelength of a sound wave is related to its frequency by the relationship:
$f= \frac{v}{\lambda}$
where
f is the frequency
v is the speed of the wave
$\lambda$ is the wavelength

The wave in our problem has wavelength of $\lambda=20.0 m$ and speed of $v=343 m/s$ (this is the speed of sound in air), therefore its frequency is
$f= \frac{343 m/s}{20.0 m}=17.15 Hz$

And the period of the wave is equal to the reciprocal of its frequency:
$T= \frac{1}{f}= \frac{1}{17.15 Hz}=0.058 s$

5 0

4 years ago

A 4.50-volt personal stereo uses 1950 joules of electrical energy in one hour. what is the electrical resistance of the personal

saveliy_v [14]

The stereo uses an energy of $E=1950 J$ in a time $t=1 h=3600 s$ , therefore the power of the stereo is given by
$P= \frac{E}{t}= \frac{1950 J}{3600 s}=0.54 W$

We also know that the power of an electrical device is related to its voltage, V, and its resistance, R, by the following equation
$P= \frac{V^2}{R}$
therefore, we can rearrange the equation to calculate the resistance of the stereo:
$R= \frac{V^2}{P}= \frac{(4.5 V)^2}{0.54 W}=37.5 \Omega$

6 0

4 years ago

two denominational motion is not always projectile motion. in two denominational motion that is not a projectile motion, _______

irga5000 [103]

Answer:

a projectile is an object upon which the only force is gravity. Gravity acts to influence the vertical motion of the projectile, thus causing a vertical acceleration. The horizontal motion of the projectile is the result of the tendency of any object in motion to remain in motion at constant velocity.

Explanation:

5 0

4 years ago

3. Which statement best describes the research projects that are funded by private

SOVA2 [1]

Answer:

b. Research projects for a specific cause

Explanation:

Research funded by private foundations are usually for a specific cause. These type of research are usually properly scrutinized, and must have a high probability of success. Most of these projects may not be to benefit the consumers, but are usually done with a special purpose in mind.

5 0

3 years ago