The first collision because a greater amount of momentum must be taken and used in order to push the cart back, giving it a greater mass and impulse
Hmm well best i can do is: 7 km/h + 20 km/h = 27 km/h. should be your answer.
Answer:
If an object has more protons than electron then the net charge on the object is positive but if it has more electrons than protons the net charge on the object is negative. The object is electrically neutral if the number of protons is equal to the number of electrons.
Explanation:
Atom is composed of different subatomic particles . The 3 major subatomic particles are proton , neutron and electrons. The proton and the neutron is concentrated in the nucleus of an atom. The nucleus forms the dense core of an atom. The protons are positively charged while the electrons are negatively charged .The neutrons are neutrally charged. The electrons forms a cloud around the nucleus of an atom.
The net charge is defined as sum of the charges on an object. The 2 electric charges available are positive or negative charges. The proton are positive while the electron are negative. Although the mass of the proton is greater than the electron but the magnitude of their charges are equal . If an object has more protons than electron then the net charge on the object is positive but if it has more electrons than protons the net charge on the object is negative. The object is electrically neutral if the number of protons is equal to the number of electrons.
<h2>Circular path i.e 1</h2>
Explanation:
If the driver steer into circular path , the acceleration of car will be
acceleration = velocity²/radius of circle
Because the velocity and radius of circle are both constant at all points . Thus the acceleration will also remain constant .
In case 3 and 4 , the radius of path changes . Because velocity is constant . Therefore the acceleration will not remain constant
Answer:
Formula
divide the pressure value by 100000
What is the definition of one pascal of pressure?
A pascal is a pressure of one newton per square metre, or, in SI base units, one kilogram per metre per second squared. ... For example, standard atmospheric pressure (or 1 atm) is defined as 101.325 kPa. The millibar, a unit of air pressure often used in meteorology, is equal to 100 Pa.
