Answer:
The tension in the steel beam is 14.72 Newtons.
Explanation:
To calculate the tension in the steel beam when a car is hanging from it, you can use the principles of static equilibrium. In this situation, the gravitational force acting on the car must be balanced by the tension in the steel beam.
First, let's calculate the gravitational force acting on the car:
F_gravity = mass × gravity
Where:
Mass (m) = 1560 kg
Gravity (g) ≈ 9.81 m/s² (standard acceleration due to gravity)
F_gravity = 1560 kg × 9.81 m/s² ≈ 15306 N
Now, this gravitational force is balanced by the tension in the steel beam. Since the beam bends with an angle of 0.055°, we need to consider the vertical component of the tension force.
The vertical component of the tension (T_vertical) can be calculated using trigonometry (considering the angle θ):
T_vertical = T × sin(θ)
Where:
T_vertical is the vertical component of tension.
T is the tension in the beam.
θ is the angle in radians.
We need to convert the angle from degrees to radians:
θ = 0.055° × (π/180) ≈ 0.000959 radians
Now, we can calculate T_vertical:
T_vertical = 15306 N × sin(0.000959) ≈ 14.72 N
So, the tension in the steel beam is 14.72 Newtons.
Answer:
4.875 V
Explanation:
N = 1300
diameter = 2.10 cm
radius = half of diameter = 1.05 cm
B1 = 0.130 T
B2 = 0 T
t = 12 ms
According to the law of electromagnetic induction,
Where, Ф be the magnetic flux linked with the coil
e = 4.875 V
Answer:
19.3 m/s
Explanation:
Take down to be positive. Given:
Δy = 19 m
v₀ = 0 m/s
a = 9.8 m/s²
Find: v
v² = v₀² + 2aΔy
v² = (0 m/s)² + 2 (9.8 m/s²) (19 m)
v = 19.3 m/s
the speed at which the person falls
the change in kinetic and potential energy
the location where potential energy is zero
Answer:
the location where potential energy is zero
Explanation:
Answer:
Air resistance
Explanation:
Air resistance encountered as the person falls
Answer:
b) 16 cm
Magnification, m = v/u
3 = v/u
⇒ v = 3u
Lens formula : 1/v – 1/u = 1/f
1/3u = 1/u = 1/12
-2/3u = 1/12
⇒ u = -8 cm
V = 3 × (-8) = -24
Distance between object and image = u – v = -8 – (-24) = -8 + 24 = 16 cm
Explanation:
The net magnetic force exerted by the external magnetic field on a current-carrying wire formed into a loop in a uniform magnetic field is absolutely zero since the individual forces on each section of the loop cancel each other out.
The force exerted by a magnetic field on a current carrying wire is given by Lorentz force law, which says that the force is equal to the cross product of the current and the magnetic field. However, in this case, where the wire is formed into a loop with current flowing in a counter-clockwise direction in presence of an external magnetic field, the individual forces on each infinitesimal section of the loop cancel each other out. Therefore, the net magnetic force exerted by the external field on the entire loop is zero.
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The magnetic force exerted on a current-carrying wire loop by an external magnetic field can be calculated using the equation F = I * R * B.
The magnetic force exerted by the external field on the current-carrying wire loop can be determined using the equation F = I * R * B. The magnetic force is equal to the product of the current, radius, and magnetic field strength. The direction of the magnetic force can be determined using the right-hand rule, where the thumb represents the direction of the current, the fingers represent the magnetic field, and the palm represents the direction of the force.
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Answer:
The highest of its trajectory = 0.45 m
Option C is the correct answer.
Explanation:
Considering vertical motion of cat:-
Initial velocity, u = 3.44 sin60 = 2.98 m/s
Acceleration , a = -9.81 m/s²
Final velocity, v = 0 m/s
We have equation of motion v² = u² + 2as
Substituting
v² = u² + 2as
0² = 2.98² + 2 x -9.81 x s
s = 0.45 m
The highest of its trajectory = 0.45 m
Option C is the correct answer.