Answer:
Explanation:
Given that :
The current I = 7.2 A
The length vector L = 2.2 m i
The force vector is = -2.6 j N
When L = 2.2 m i ; the
Force vector F = (2.6 i - 4.4 k) N
Compute the components of the magnetic field as follows:

Replacing 7.2 A for I ; -2.6 j N for F & 2.2 m i for L



However in y direction ; we have :



Hence, the component of magnetic field is as follows:

Answer:
Explanation:
The friction force acting on the body depends on the mass of the body, here the mas of truck is very large as compared to the car, so the friction force acting on the truck is large then the car. So, the amount of heat generated by the truck is more than the car and the truck overheated more.
B. Teens are still growing and require more energy for building bones and muscle.
Answer:
230.4 N
Explanation:
Applying,
F = kqq'/r²..................... Equation 1
Where F = Electric force, k = Coulomb's constant, q = charge in the ballon, q' = charge in the denium, r = distance between the charges.
From the question,
Given: q = -8.0×10⁻⁶ C, q' = +8.0×10⁻⁶ C, r = 0.05 m
Constant: k = 9×10⁹ Nm²/C²
Substitute these values into equation 1
F = (9×10⁹×8.0×10⁻⁶×8.0×10⁻⁶ )/0.05²
F = (576×10⁻³)/0.0025
F = 230.4 N.
Answer:
The position is
relative to the base of the ocean
Explanation:
From the question we are told that
The angle made by the incline with the horizontal is 
The constant acceleration is 
The distance covered is 
The height of the cliff is 
The velocity of the car is mathematically represented as

The initial velocity of the car is u= 0
So

substituting values


The vertical component of this velocity is

substituting values


The negative sign is because is moving in the negative direction of the y-axis
The horizontal component of this velocity is



Now according to equation of motion we have

substituting values

using quadratic equation we have that

given that time cannot be negative

The car’s position relative to the base of the cliff when the car lands in the ocean is mathematically evaluate as

substituting values

