Answer:
None of the above
Explanation:
When energy is converted from one form to another in a chemical or physical change, none will change. This is due to the law of conservation of energy. It states that the total energy of the system remains constant. It only changes energy from one form of energy to another. So, the correct option is (d) "none of the above".
Answer:
c
Explanation: kinetic energy being transferred from one object to another. Kinetic energy is the energy of mass in motion. The kinetic energy of an object is the energy it has because of its motion.
Answer:
77.8s
Explanation:
Let d distance between the asteroid and space tug
So;d=Xtug+Xspace
Xtug=VtT+0.5atT^2
Xspace=VsT+0.5asT^2
Since Vt=Vs=0 initial velocity
Then
d=0.5(atT^2+asT^2)
T^2( at+as)=2d
T=√(2d/at+as)
But force F = mass M*acceleration a
Hence at=Ft/mt ,as=Fs/ms
But note Ft=F=Fs since the Same force acts on it
Hence T=√( 2d/F(1/mt+1/Ms))
T=√(2*493/366(1/3460+1/6430)
T=√(986/0.1627)=√(6060.195)=77.8s
Answer:
18.25 units
Explanation:
We are given that
The position of object A=
The position of object B=
We have to find the distance between object A and object at time t=3.00 s
Substitute t=3 s
The distance between A and B
The magnitude of distance between A and B
Using the formula magnitude of position vector
r=xi+yj+zk
Answer:
Volt
Explanation:
Voltage is what makes electric charges move. ... Voltage is also called, in certain circumstances, electromotive force (EMF). Voltage is an electrical potential difference, the difference in electric potential between two places. The unit for electrical potential difference, or voltage, is the volt.
The ohm is defined as an electrical resistance between two points of a conductor when a constant potential difference of one volt, applied to these points, produces in the conductor a current of one ampere, the conductor not being the seat of any electromotive force.
The coulomb (symbolized C) is the standard unit of electric charge in the International System of Units (SI). ... In terms of SI base units, the coulomb is the equivalent of one ampere-second. Conversely, an electric current of A represents 1 C of unit electric charge carriers flowing past a specific point in 1 s.
An ampere is a unit of measure of the rate of electron flow or current in an electrical conductor. One ampere of current represents one coulomb of electrical charge (6.24 x 1018 charge carriers) moving past a specific point in one second.