Answer:
The answer to your question is Ke = 72 J
Explanation:
Kinetic energy depends on the speed of and object and its mass.
Data
mass = m = 4 kg
speed = v = 6 m/s
distance = d = 8 m
Kinetic energy = ke = ?
Formula
Ke = (1/2) mv²
Substitution
Ke = (1/2) (4)(6)²
Simplification
Ke = (1/2)(4)(36)
Ke = (1/2)(144)
Ke = 72 Joules
Result
Ke = 72 J
The answer is false..................
Answer:
making observations
Explanation:
because in order to observe anything you may have to use sight, smell, touch maybe even taste or sound
hope this helps
Answer:
Velocity of proton will be equal to 4500 m/sec
Explanation:
We have given that proton moves right angles through a magnetic field
So angle between magnetic field and velocity of proton is 
Magnetic field B = 0.025 Tesla
Charge on proton 
Magnetic force on the proton is given 
Magnetic force on a moving charge particle is equal to 
So 
v = 4500 m/sec
So velocity of proton will be equal to 4500 m/sec