Given, a = -3.2m/s²
v = 5m/s
t = 10s
u = ?
Using kinematic equation,
v = u + at
5 = u -3.2* 10
5 = u - 32
u = 32 + 5
u = 37 m/s
Answer:
• The electric field at any location in space, due to a dipole, is the vector sum of the electric field due to the positive charge and the electric field due to the negative charge.
• At a distance d from a dipole, where d >> 5 (the separation between the charges), the magnitude of the electric field due to the dipole is proportional to 1/d^3
• A dipole consists of two particles whose charges are equal in magnitude but opposite in sign
Explanation:
A dipole is a pair of magnetized, equal or oppositely charged poles the are being separated by a distance.
The statements about a dipole that are correct are:
• The electric field at any location in space, due to a dipole, is the vector sum of the electric field due to the positive charge and the electric field due to the negative charge.
• At a distance d from a dipole, where d >> 5 (the separation between the charges), the magnitude of the electric field due to the dipole is proportional to 1/d^3
• A dipole consists of two particles whose charges are equal in magnitude but opposite in sign
Answer:
Avoid judging or criticizing your friend.
Let your friend know that you care and want to help
Share the ways you cope with stress and other problems in your life
I had this question
Answer:
The speed at the end of the track = 27 m/s
The acceleration = 1.2 m/s²
Please find the Δx vs Δt, v vs Δt, a vs Δt
Explanation:
We have;
x = u·t + 1/2·a·t²
Where;
x = The distance = 300 m
u = The initial velocity = 0 m/s (Ball at rest)
t = The time taken = 22.4 s
Therefore;
300 = 0 + 1/2×a×22.4²
a = 2×300/22.4² = 1.19579 ≈ 1.2 m/s²
v = u + a×t
∴ v = 0 + 1.2 × 22.4 = 26.88 ≈ 27 m/s
Part of the table of values is as follows;
t, x, v
0, 0, 0
0.4, 0.095663, 0.478316
0.8, 0.382653, 0.956632
1.2, 0.860969, 1.434948
1.6, 1.530611, 1.913264
2, 2.39158, 2.39158
2.4, 3.443875, 2.869896
2.8, 4.687497, 3.348212
3.2, 6.122445, 3.826528
3.6, 7.748719, 4.304844
Answer:
153 N
Explanation:
The work done on the ball by the pitcher = Force * distance
The energy of the baseball is kinetic because it moves.
is the mass and is the velocity.
By the work-kinetic energic theorem,
Hence