What is the fluid speed in a fire hose with a 9.00 cm diameter carrying 80.0 l of water per second?

And we divide that by Pi times 9.00 centimeters written as meters so centi is prefix meaning ten times minus two and we square that diameter. And we end up with 12.6 meters per second is the speed of the water. How do you calculate the force of a fire hose? Hose End Force Chart. … Read more

What is velocity of bullet in the barrel?

Firearm muzzle velocities range from approximately 120 m/s (390 ft/s) to 370 m/s (1,200 ft/s) in black powder muskets, to more than 1,200 m/s (3,900 ft/s) in modern rifles with high-velocity cartridges such as the . 220 Swift and . What is the velocity of a pistol bullet? “A 9mm bullet travels around 1500 ft/s. … Read more

How do you find the acceleration of a system?

Summary. According to Newton’s second law of motion, the acceleration of an object equals the net force acting on it divided by its mass, or a = F m . This equation for acceleration can be used to calculate the acceleration of an object when its mass and the net force acting on it are … Read more

What happens to the dry ice at room pressure and temperature?

Dry ice is the name for carbon dioxide in its solid state. At room temperature, it will go from a solid to a gas directly. While carbon dioxide gas is invisible, the very cold gas causes water vapor in the air to condense into water droplets, thus creating fog. What happens to dry ice under … Read more

What is the biggest problem with wind turbines?

Turbines produce noise and alter visual aesthetics. Wind farms have different impacts on the environment compared to conventional power plants, but similar concerns exist over both the noise produced by the turbine blades and the visual impacts on the landscape . Are there any problems with wind turbines? Many wind farm owners find themselves faced … Read more

How do you solve the conservation of angular momentum problems?

What is an example of conservation of angular momentum? An ice skater spinning is an example of conservation of angular momentum. The torque or the rotating effect of the force is almost equal to zero because there is negligible friction between the skates and the ice. The friction is exerted very close to the pivot … Read more

What happens when a torque is applied on a rotating object?

When a torque is applied to the rotating body, it causes an angular acceleration, due to which the angular velocity of the body changes. How do you solve torque problems in physics? How do you solve torque problems with angles? How do you solve a static equilibrium problem? Identify the object to be analyzed. Set … Read more

Can the same rope have different tensions?

Also, if the rope is not rigid (if it is an elastic rubber band e.g.), you will feel different tension in the rope when adding a load in one end over a pully as long as stretching happens. How do you find the tension of two ropes holding an object? How do I find tension … Read more

How does physics work in space?

Objects in space follow the laws or rules of physics, just like objects on Earth do. Things in space have inertia. That is, they travel in a straight line unless there is a force that makes them stop or change. The movement of things in space is influenced by gravity. How do spaceships accelerate in … Read more

What force helps a rock climber scale a wall?

Friction is one of the key parameters of climbing. The further away the centre of mass is from the wall, the more friction force is required at the hands. What is the science behind rock climbing? The more vertical the rock, the more the compressive force will be applied perpendicularly to the surface, which will … Read more