Answer:
Option C. 5,000 kg m/s
Explanation:
<u>Linear Momentum on a System of Particles
</u>
Is defined as the sum of the momenta of each particles in a determined moment. The individual momentum is the product of the mass of the particle by its speed
P=mv
The question refers to an 100 kg object traveling at 50 m/s who collides with another object of 50 kg object initially at rest. We compute the moments of each object
The sum of the momenta of both objects prior to the collision is
Answer:
M = I A definition of magnetic moment - current * area
A = π R^2 = π * (6.4E6)^2 = 1.3E14 m^2
I = 8E22 A-m^2 / 1.3E14 m^2 = 6.2E8 amperes
I = 620,000,000 amps
Power = current x voltage
So the power is 7 x 110 = 770 W = 0.77kW
0.77 x 13 = 10.01 kWh
10.01 x 10 cents = 100.1 cents (is this 1 dollar? Idk I use a different currency)
I think the answer is 25J
Answer:
The speed of sound is greater in water ice
Explanation:
This is because water ice is in its solid form and sound travels faster in solids. This is due to its molecules being tightly packed together than in a liquid. The tightly packed molecules help sound collide quickly through it whereas in liquids the molecules aren’t tightly packed compared to a solid and the sound waves takes more time colliding through it.