Answer:
a = 0.01 [m/s²]
Explanation:
To solve this problem we must use Newton's second law, which says that the sum of forces on a body is equal to the product of mass by acceleration.
ΣF = m*a
where:
F = forces = 10 [N]
m = mass = 100 [kg]
a = acceleration [m/s²]
10 = 100*a
a = 0.01 [m/s²]
For each time the 36 gear turns, the 12 gear turns thrice, so if the 36 turns thrice, the 12 turns 9 times
Answer:
Newton's principle of force, the variation of the momentum and the acceleration have the same direction
Explanation:
To find the force exerted by the star on the sail of the ship, the expression of the momentum of the radiation is used, which in the case of a total reflection
p =
where p is the momentum and U the incident energy and c the speed of light.
The strength I could get from
F =
the direction of the acceleration is the direction of the momentum, therefore the principle to find the acceleration of is Newton's principle of force, the variation of the momentum and the acceleration have the same direction.
Answer: Energy consumption and sustainability is important so that it remain available for future generation.
Explanation:
1. The home furnaces are likely to require fuel like coal, which will directly emit carbon dioxide and carbon monoxide gases. These should be replaced with the electrical furnaces. The old or more power consuming air conditioners should be replaced with new ones.
2. The water heaters should be tankless so their capacity to heat more water could be possible. The water heaters should be electricity saving.
3. Washer and dryers should be water savy and electricity savy. A front-loading washing machine is useful energy saver.
4. The LED lights are more electricity saving than conventional bulbs. Halogen lights are also electricity saving.
Answer:
Acceleration of train needed to avoid collision = -0.9 m/s²
Explanation:
Here both trains are similar with 1000 m apart with same speed.
So one train has to move 500 m before stopping just to avoid collision.
We have
Initial velocity, u = 30 m/s
Acceleration , a = ?
Displacement, s = 500 m
Final velocity, v = 0 m/s
We have equation of motion v²= u² + 2as
Substituting
v²= u² + 2as
0²= 30² + 2 x a x 500
a = -0.9 m/s²
Acceleration of train needed to avoid collision = -0.9 m/s²