Answer:
U=α/(x+x_0)^2
v=1.88m/s
Explanation:
We have that
(a)
The potential is calculated by using
(b)
m=0.5kg
The acceleration can be obtained if we calculate the force for x=4, and after we compute the acceleration
and finally, we can use the equation for the final speed
I hope this is useful for you
regards
Answer:
5.76N
Explanation:
We are given that
Distance between two charges ,
Electrostatic force=
Where k=
Substitute the values then we get
Hence, the electric force between two charges=5.76N
Answer:
you have patience the distance.
Explanation:
the train leaves at 6.30.
Answer:
0.00119
Explanation:
F = Force = 44500 N
A = Area =
E = Young's modulus of copper =
Stress is given by
Strain is given by
The resulting strain is 0.00119
Explanation:
- Velocity of ball (v) = 8 m/s
- Kinetic Energy (K.E) = 139 J
- Mass (m) = ?
We know that,
<h3>• K.E = ½mv²</h3>
→ 139 = ½ × m × (8)²
→ 139 = ½ × m × 64
→ 139 = 1 × m × 32
→ 139 ÷ 32 = m
→ <u>4</u><u>.</u><u>3</u><u>4</u><u> </u><u>kg</u><u> </u><u>=</u><u> </u><u>m</u>
Therefore, mass in kg is 4.34 kg.