There is a force of gravity acting downward on the object,
and no force acting upward on it.
Since the vertical forces on it are unbalanced, it accelerates
in the direction of the net vertical force, which is downward.
Answer: False
Explanation: When a switch is closed the circuit is closed and thus the flow of current is on while when the switch is open, the circuit is open, and therefore there will be no flow of current in the circuit.
Answer:
Length of the rod is 0.043m
Explanation:
Mass of the bell (M) = 36kg
Distance of the center of mass from pivot = 0.55m
Moment of inertia (I) = 36.0kgm²
Mass of clipper (m) = 2.8kg
Length of the bell to ring = L
The period of the pendulum with small amplitude of oscillation is
T = 2π √(I / mgd)
Where g = acceleration due to gravity = 9.8 m/s²
T = 2π √(36 / 36*9.8*0.55)
T = √(0.1855)
T = 0.43s
The period of the pendulum is 0.43s
To find the length of the Clapper rod for which the bell ring slightly,
T = 2π√(L / g)
T² = 4π²L / g
T² *g = 4π²L
L = (T² * g) / 4π²
L = (9.8* 0.43²) / 4π²
L = 1.7287 / 39.478
L = 0.043m
The length of the Clapper rod for the bell to ring slightly is 0.043m
B. galaxies
Explanation:
Spiral, elliptical, irregular and barred spiral are descriptions of different shapes of galaxies.
A galaxy is a constellation or group of stars.
- A spiral galaxies are the most common and they have spiral arm shapes.
- A barred spiral is made up of spiral shape and bar in the middle.
- Elliptical galaxies are spherical in shape.
- Irregular galaxies are usually not patterned and lacks form.
learn more:
Galaxy recession velocity brainly.com/question/12617031
#learnwithBrainly
The answer to this is 59,290 N
Hope this helped :)