a boost towards the direction. or she should have hooked herself up to a whire
Answer: KE = 80 J
Explanation: Kinetic energy is expressed in this formula:
KE = 1/2 mv²
= 1/2 ( 10 kg) ( 4 m/s)²
= 1/2 (160 J)
= 80 J
Ke = 1/2mv2 = 1/2.10.(4)2=5.16= 80 J
Momentum (P) = mass x velocity
Where velocity =15m/s
Therefore, momentum(P) = (850kg) x (15m/s)=12,750kgm/s
Hence,the momentum of the train is 12,750kgm/s
P = mv
Momentum = Mass x Velocity
Plug it in and finish equation
Answer: p = 80 kg.m/s
Explanation: Momentum is expressed as the product of mass and velocity.
= 40 kg ( 2 m/s)
= 80 kg.m/s
The boy's momentum = 80kgm/s
Momentum (P) =mass x velocity
Where, velocity(speed) =2m/s
Mass of the boy=40Kg
Momentum (P)=(40kg) x (2m/s) = 80kgm/s.
both are different types of energy. one is elastic p.e while the other one is made by change in sound waves
Answer: A = 0.02 m²
Pressure is expressed in the formula:
P = F / A where F = mg
= mg /A
= 50 kg ( 9.8 m/s²) / 25000 Pa
= 0.02 m²
When a photon collides with an electron and is deflected, the photon’s wavelength decreases.
When photon gained energy by the collision of the electron. Its energy and frequency will be increased and its wavelength will be decreased.
When a photon collides with an electron, the effect of it is called Compton scattering, where the photons interact with the electron, losing momentum and therefore increase in wavelength and a decrease in frequency.
The speed of electrons striking the anode is increased, the density of the emitted x-rays increases.
Answer: Option 2
Whenever electrons are made to be incident on any anode, they will be interacting with the surface atoms of anode. So these interaction will lead to excitation of electrons of the surface atoms of the anode.
Thus when the excited electron will come back to ground state, it will emit x-rays. Thus, on increasing the speed of the striking electrons, it will gain the property of interacting with larger amount of surface atoms leading to increase in the emission of X-rays .
Thus, this increase in the emission of X-rays will lead to increase in the density of X-ray. So the speed of electrons striking the anode is increased, the density of the emitted x-rays increases.
In analog sound transmission, information is translated in electric pulses. In digital sound transmission, information is translated to binary codes of zero and one.