3 years ago

What is a speed of a car if it covers 130 km in 2 hours?

Physics

2 answers:

Flauer [41]3 years ago

8 0

Answer:

65km/h

Explanation:

s=d/t

s=130km/2h

= 65km/h

inysia [295]3 years ago

3 0

Answer:

65 km per hour

Explanation:

130/2=65

You might be interested in

PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer these correctly!!!! (40pts)

Sunny_sXe [5.5K]

friction make non moving objects starts to move

true

there are different types of force which may help them to move

3 0

3 years ago

What is a Lever?

NemiM [27]

Lever: a bar used to move something
Wedge: a tool used to go in between object to put them in place
Incline plane : a ramp it’s used to help rise heavy things
Pulley: it’s a wheel that supports movement and change of direction

8 0

3 years ago

Read 2 more answers

The lowest possible temperature in outer space is 3.13 K. What is the rms speed of hydrogen molecules at this temperature? (The

Umnica [9.8K]

Answer:

$v_{rms} =196.59 m/s$

Given:

Temperature, T = 3.13 K

molar mass of molecular hydrogen, m = 2.02 g/mol = $2.02\times 10^{-3}kg/mol$

Solution:

To calculate the root mean squarer or rms speed of hydrogen molecule, we use the given formula:

$v_{rms} = \sqrt{\frac{3TR}{m}}$

where

R = rydberg's constant = 8.314 J/mol-K

Putting the values in the above formula:

$v_{rms} = \sqrt{\frac{3\times 3.13\times 8.314}{2.02\times 10^{-3}}}$

$v_{rms} =196.59 m/s$

5 0

3 years ago

When was hawaii volcanoes national park established

Lerok [7]

1906 i Believe..........

6 0

3 years ago

Wind erosion can be reduced by _____.

yanalaym [24]

Using land according to its capability. protect the soil surface with some form of cover. control runoff before it develops into an erosive force

4 0

3 years ago