Moving

225,000 Joules

The momentum of the first train car is 30,000 kgm/s, and the momentum of the second train car is 0 kgm/s since it is at rest. When they combine, the total momentum is 30,000 kg*m/s. The final velocity of the combined train cars can be calculated using the total momentum and the total mass of the combined train cars.

The initial momentum of the system is 0.25 kg1.0 m/s = 0.25 kgm/s to the right. After the collision, the total momentum is 0.25 kg0.75 m/s + 0.15 kg*0.75 m/s = 0.3 kgm/s to the right. Therefore, momentum is conserved in the collision, as there is no external force acting on the system.

The observer on train B will see clock A ticking slower than their own clock due to time dilation effects at high speeds. This is a consequence of special relativity, where time is experienced differently for two observers moving relative to each other at near light speeds.

If the pressure exerted by a moving fluid decreases, its speed increases. This is because as pressure decreases, there is less force resisting the fluid's motion, allowing it to move faster to balance the forces acting on it.

The initial velocity is 25 m/s, final velocity is 0 m/s, and the distance covered is 100 meters. Convert 3 minutes to seconds (3 minutes = 180 seconds). Use the equation v^2 = u^2 + 2as, where v is final velocity, u is initial velocity, a is acceleration, and s is distance. Solve for acceleration (deceleration in this case) to find it to be -0.3472 m/s^2. The negative sign indicates deceleration.

If its position relative to a fixed point is changing

friction

The energy in a moving object is kept in its kinetic energy store. This energy is related to the object's mass and its velocity.

The slope of the graph from 10 s to 30 s is negative because the car's speed is decreasing over time. This negative slope indicates that the car is slowing down during that time interval.

When a car is stopped at a stop sign, the net force on the car is zero because no motion is occurring. When a car is moving in a straight line with constant speed, the net force on the car is also zero because the forces acting on the car (like air resistance and friction) are balanced by the force generated by the car's engine.

The transportation industry is moving to new refrigerants with lower global warming potential (GWP) to mitigate the environmental impact of greenhouse gas emissions. These new refrigerants help reduce the industry's contribution to climate change by decreasing the amount of heat-trapping gases released into the atmosphere. Additionally, regulatory policies are pushing for the adoption of more environmentally friendly refrigerants in an effort to meet sustainability goals and reduce carbon footprint.

accelerate in the direction of the net force.

Global winds curve due to the Coriolis effect, which is a result of the Earth's rotation. This effect causes objects, including air molecules, to be deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. As the winds move across the Earth's surface, this deflection results in curved wind patterns rather than straight lines.

Answer : Normal Fault

Explanation :

Normal fault is the cliche kinds of fault.It forms when rock above an inclined fracture plane moves downward, sliding along the rock on the other side of the fracture.

An object in equilibrium is not moving, as all the forces acting on the object are balanced. If the object were to be in motion, it would no longer be in equilibrium as there would be an unbalanced force acting on it.

Air resistance, also known as drag, is the force that slows down objects moving through the air. As an object moves through the air, it pushes the air out of its way, creating resistance that opposes its forward motion. This force is influenced by the object's shape, size, and speed.

Yes, substances with high thermal energy have particles that are moving rapidly. The higher the thermal energy, the faster the particles move. This movement is what we perceive as temperature or heat.

To make incapable of moving means to render unable to change position or location. This could be due to physical, mental, or external factors that restrict or immobilize a person or object from moving.

The gas bubble in a potometer may not be moving because there is an air leak in the system allowing the gas to escape. This can disrupt the water flow and prevent the bubble from moving. Check for any leaks in the tubing or connections and ensure they are airtight for proper functioning of the potometer.

The acceleration of a body moving uniformly in a circle is directed towards the center because the velocity of the body is constantly changing direction, even though its speed remains constant. This change in direction of the velocity results in a centripetal acceleration that is required to keep the body moving in a circular path.

Static friction stops an object from moving. It is the force between two surfaces that are not moving relative to each other. Once the object starts moving, kinetic friction comes into play.

"As a follow-up to your point, how do you see that impacting the overall strategy?" This question invites the speaker to delve deeper into their thoughts and share insights on the implications of their point, keeping the discussion dynamic and pushing it forward.

Momentum is the product of an object's mass and velocity. A high-speed bullet has more momentum than a slow moving train because the bullet has a smaller mass but much higher velocity. This means the bullet can have more impact and be harder to stop compared to the train, even though the train has more mass.

Inertia, which is the tendency of an object to resist changes in its motion. When a car stops suddenly, your body continues to move forward due to its inertia until an external force, such as the seatbelt or airbag, stops it.