Answer:
c. 43 m/s
Explanation:
Given the following data;
Displacement, S = 90 meters
Time, t = 5.55 seconds
To find the initial velocity;
We would use the second equation of motion given by the formula;

Where;
- S represents the displacement or height measured in meters.
- u represents the initial velocity measured in meters per seconds.
- t represents the time measured in seconds.
- a represents acceleration measured in meters per seconds square.
We know that acceleration due to gravity is -9.8m/s² because the direction is downward.
Substituting into the equation, we have;



Rearranging the equation, we have;



Initial velocity, u = 43.41 ≈ 41 m/s
It would be D) the rope is pulled to the right. This is because their is a greater force in that direction.
Answer:
dado os monômios X elevado a 2 + 2 elevado a 2 menos 6 elevado a 2 a redução dos monômios está representado na questão em que os monômios a seguir eles representam quatro graus dê valor numérico da expressão m + n = 20 x elevado a 7 Y.
Answer:
h = 0.0259 m
Explanation:
given,
diameter of the cone = 0.0208 m
radius,r = 0.0104 m
angle of inclination,θ = 18°
initial angular velocity, ω_i = 56 rad/s
final angular velocity ,ω_f = 0 rad/s
height, h = ?
Rotational kinetic energy

Moment of inertia of coin

so,

Transnational Kinetic energy

v = r ω

now,
using conservation energy
Kinetic energy of the coin is converted into the potential energy
KE_r + KE_t = PE



h = 0.0259 m
Vertical height gain by the coin is equal to 0.0259 m
Answer:
Explanation:
Magnitude of magnetic field due to a current carrying conductor
= ( μ₀ / 4π ) x 2I / d , I is current , d is distance from wire . This formula has been derived from Ampere's Law.
= 10⁻⁷ x 2 x 23 / 10 Current given I = 23
= 46 x 10⁻⁸ T .
Magnetic field due to current 17 A
10⁻⁷ x 2 x 17 / 10
= 34 x 10⁻⁸ T .
Magnetic field due to current 11 A
10⁻⁷ x 2 x 11 / 10
= 22 x 10⁻⁸ T .
magnetic field due to current 17 A and 11 A are in same direction so total magnetic field
= 34 x 10⁻⁸ + 22 x 10⁻⁸
= 56 x 10⁻⁸ T
magnetic field due to current 23 A in opposite direction so total magnetic field
= 46 x 10⁻⁸ - 56 x 10⁻⁸
= - 10 x 10⁻⁸ T
Magnitude = 10 x 10⁻⁸ T .