Answer:
A. Objects 1 and 2 will not move, and objects 3 and 4 will accelerate
upward.
Explanation:
A is correct as the weight in Objects 1, and 2 is greater than the person's push force; however it is on the ground meaning it is at it's stable state meaning the box couldn't be moved downwards anymore. And The newtons in 3 and 4 are the same
B is incorrect as Object 3 and 4 has a less Newton weight than newton force
C is incorrect as Object 1 and 2 has a greater Newton weight than newton force
D is incorrect as Object 1 and 2 wouldn't move downwards
Hope this helps!
I believe its air particles
Answer:
The ceramic tile will stand the force of 5 N.
Explanation:
Step 1: Calculate the area (A) of the ceramic tile
We will use the formula for the area of a square.
A = 50 cm × 50 cm = 2500 cm²
Step 2: Convert "A" to in²
We will use the conversion factor 1 in² = 6.45 cm².
2500 cm² × 1 in²/6.45 cm² = 3.9 × 10² in²
Step 3: Calculate the pressure (P) exerted by a force (F) of 5 N
We will use the following expression.
P = F/A
P = 5 N / 3.9 × 10² in² = 0.013 N/in²
Since the pressure exerted would be less than the maximum pressure resisted (40 N/in²), the ceramic tile will stand the force of 5 N.
Answer:
The velocity
Explanation:
The difference between speed and velocity is the following:
- Speed is defined as the ratio between the total distance covered by an object and the time taken:
and it is a scalar.
In this problem, we cannot calculate the speed of the car, because we don't know exactly what is the distance covered by the car (we only know the distance between town A and town B, but we don't know if the car has travelled on a straight path or not, so we don't know the distance it has covered)
- Velocity is defined as the ratio between the displacement and the time taken:
(note that velocity is a vector)
Displacement is the shortest distance (straight line) between the final and the initial point of the motion: in this case, it corresponds to the distance between town A and town B, which we know. Since we also know the time of the trip, this means that we can calculate the velocity of the car.
Answer:
The amplitude of a wave is related to the amount of energy it carries. A high amplitude wave carries a large amount of energy; a low amplitude wave carries a small amount of energy. The average amount of energy passing through a unit area per unit of time in a specified direction is called the intensity of the wave
Explanation:
B.time