Power = 
Delilah: 170J/30s = 5.66 W
Adam: 260J/20s = 13 W
Answer
The same number of particles in a gas spread further apart than in the liquid or solid states.
Explanation:
The same number of particles in a gas spread further apart than in the liquid or solid states. The same mass takes up a bigger volume. This means the gas is less dense. Density also depends on the material.
Answer:1.5
Explanation:
Given
mass of first cart 
initial Velocity 
mass of second cart 
In the absence of External Force we can conserve momentum
Final kinetic Energy of two masses
Initial Kinetic Energy
Answer:
A=ACCELERATION = -4 m/s^2
B=DISTANCE= 72 m
Explanation:
Solving for the acceleration of the car
A= (10 m/s-30 m/s) / 5s
A= -20 m/s / 5s
A= -4 m/s^2
Solving for the distance traveled after the third second
D= v1 * t + 1/2at^2
D= 30 m/s * 3 s + -2m/s^2 * (3s)^2
D= 90 m + - 18 m
D = 72 m
Answer:
Explanation:
A mover carries a box across a room. A weightlifter lifts a barbell off the ground. A weightlifter holds a barbell above the head.
that what i think
