2 years ago

I HAVE NOOOO IDEA!!!!!!!!!! HELP!!!!!!!!!!

Physics

1 answer:

lawyer [7]2 years ago

4 0

Answer:

Explanation:

You might be interested in

Which of these is a benefit of nuclear energy?

Mademuasel [1]

The answer i think would be D

4 0

3 years ago

Read 2 more answers

The distance between two stations is 180 km. A train takes 2 hours to cover this distance. The speed of the train in m/sec is...

Mamont248 [21]

Answer:

Av = 25 [m/s]

Explanation:

To solve this problem we must use the definition of speed, which is defined as the relationship between distance over time. for this case we have.

$Av=\frac{distance}{time}$

where:

Av = speed [km/h] or [m/s]

distance = 180 [km]

time = 2 [hr]

Therefore the speed is equal to:

$Av = \frac{180}{2} \\Av = 90 [km/h]$

Now we must convert from kilometers per hour to meters per second

$90[\frac{km}{h}]*1000[\frac{m}{1km}]*1[\frac{h}{3600s} ]= 25 [m/s]$

4 0

2 years ago

Eroded heavy minerals settle from moving water what forms from this

vladimir1956 [14]

Rocks- Mountains.....

6 0

3 years ago

Through what process does water leave the hydrosphere and enter the atmosphere

evablogger [386]

Water and the atmosphere. Water enters the atmosphere through evaporation, transpiration, excretion and sublimation: Transpiration is the loss of water from plants (via their leaves).

8 0

3 years ago

Hi i have homework can you help me

soldier1979 [14.2K]

Explanation:

The particle will be at rest when its velocity $v(t)$ is equal to zero. Recall that the velocity is simply the derivative of the position $x(t)$ with respect to time:

$v(t) = \dfrac{dx}{dt}$

Since $x(t) = t^2 - 2t + 2$

then

$v(t) = \dfrac{d}{dt}(t^2 - 2t + 2) = 2t - 2 = 0$

Solving for t, we find that the particle will be at rest at

$t = 1\:\text{s}$

6 0

2 years ago