What is the specific gravity of perchloroethylene?
The specific gravity of perchloroethylene is approximately 1.62 at 20°C.
What factors determine the amount of air resistance an object experiences?
Well, here are a few that I can think of . . .
-- the speed at which the object is plowing through the air
-- the density of the air through which the object is plowing
-- the local turbulence in the air that was there before the object came along
-- the physical size of the object
-- the shape of the object
-- the object's surface texture
Helium defies gravity because it is lighter than the air around it. This causes it to rise upwards, creating a buoyant force that opposes gravity. This is why helium balloons float in the air.
How many newtons does gravity?
The force of gravity on Earth is approximately 9.81 newtons per kilogram.
What is Isaac newtons formula for gravity?
Isaac Newton's formula for gravity is given by the equation F = G * (m1 * m2) / r^2, where F is the force of gravity, G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between the centers of the two objects.
How does gravity cause massive collisions?
Gravity causes massive collisions by attracting objects with mass towards each other. When two massive objects are traveling towards each other due to gravitational pull, they can collide with great force, releasing a huge amount of energy. This process is seen in celestial bodies such as galaxies, stars, and planets.
Why create artificial gravity in a weightless environment?
Creating artificial gravity in a weightless environment, such as space, is important for maintaining the health and well-being of astronauts over long-duration missions. It helps prevent the negative effects of prolonged exposure to weightlessness, such as muscle and bone loss, cardiovascular deconditioning, and fluid shift in the body. By simulating gravity through spinning habitats or other technologies, astronauts can stay healthier and perform tasks more effectively in space.
What can force be represented by?
Force can be represented by vectors, which include magnitude (strength) and direction. It can also be represented by mathematical equations, such as Newton's second law (F = ma) or by diagrams showing the interactions between different objects. Additionally, force can be represented through physical measurements like pressure or tension.
Can change when the force f gravity changes?
yes because the sun is in the middle and it has to orbit around the sun so when its winter the go to the shade of black and when its summer the sun is mostly on that part.
How are acceleration and gravity different?
Acceleration is the rate at which velocity changes over time, while gravity is the force of attraction between two objects due to their mass. Acceleration can be caused by various factors like gravity, friction, or propulsion, whereas gravity is a fundamental force that exists between all objects with mass.
What affect the strength of gravity between two object?
-- The mass of one object.
-- The mass of the other object.
-- The distance between their centers of mass.
How does gravity affects two components of projectile motion?
The X component in projectile motion isn't impacted by gravity, but the Y component is. Since the Y component is impacted by gravity (also assuming you're on Earth) ...
The Y component's acceleration will be ~ +- 9.81 m/s^2
The X component is assumed to be 0 m/s^2 (disregard air resistance)
You can also assume the X component's velocity remains constant since there is 0 acceleration.
Using that information and information given, solve for time (using Kinematic formulas) and you should be able to derive all the information you need for projectile motion from that information. Hope that helps!
Gravity is the natural force that causes objects with mass to attract each other. On Earth, gravity is what keeps us grounded and gives weight to objects. Gravity also governs the motion of celestial bodies in space.
What is gravity controlled by?
Gravity is a fundamental force in nature that is determined by the mass and distance between objects. It is controlled by the distribution of mass in the universe, with larger masses creating stronger gravitational pulls. According to general relativity, gravity is the curvature of spacetime caused by mass and energy.
When riding in an elevator why does a person appear to lose weight when accelerating downward?
Weight is felt by the body resisting the pull (acceleration) of gravity. Less acceleration means less pull thus less weight. The rate at which you are accelerating downward subtracts from the pull of gravity, thus your weight is less. If you fall, say from a cliff or tall building you accelerate downward at exactly the acceleration of gravity so you're completely weightless.
Explain the universal law of gravity?
The universal law of gravity, formulated by Sir Isaac Newton, states that every mass attracts every other mass in the universe with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. This law explains how objects are attracted to each other and is responsible for phenomena like the motion of planets around the sun.
What statement about Gravity is always true?
Objects will always be pulled to the center of the mass.
Why doesn't air resistance and gravity pull an aircraft down?
Air resistance is not a downward force; it acts in the opposite direction of an object's travel. When a plane is in flight the forward force provided by the engines works against the backwards force of air resistance. If the engines are turned off the plane will begin to slow down. As a plane moves foreward the air moving over its wings creates an upward force called lift, which works against the pull of gravity.
Why is gravity the opposite of radiation?
Gravity and radiation are not really opposites. Gravity is a force that attracts objects with mass towards each other, while radiation refers to the emission of energy in the form of waves or particles. They are distinct phenomena that operate independently of each other in nature.
Why will specific gravity increase while refrigeration?
Specific gravity may increase while refrigeration is occurring because the density of the refrigerant is higher at lower temperatures. As the refrigerant cools down, its molecules become more closely packed together, leading to an increase in specific gravity. This change can affect the performance and efficiency of the refrigeration system.
What is an object's mass affected by mass?
An object's mass is not affected by its volume, shape, or location. Mass remains constant regardless of external factors, as it represents the amount of matter an object contains.
Does gravity affect small objects?
Yes, gravity affects all objects regardless of their size. The force of gravity is proportional to an object's mass, so even small objects experience the gravitational pull of larger bodies like the Earth.
What is the effect of raising a vehicle's center of gravity?
Raising a vehicle's center of gravity can make it more prone to tipping over during sharp turns or sudden maneuvers. This can reduce stability and control, especially at high speeds. Additionally, it may increase the risk of rollover accidents.