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A ball is thrown horizontally from a cliff at a speed of 15 ms and strikes the ground 45 meters from the base of the cliff How high was the cliff rounded to the nearest meter?
Answer: 44 meters
What does path independence of line integral physically mean?
For a physical meaning, take potential energy as an example. To raise an object from one position to another position one meter higher takes a certain amount of energy - the potential energy of the object increases. The amount of energy is independent of the path the object takes - whether it goes straight up, in zigzag, etc.
If you want to lift a 5kg box to the height of meter how much work must be done?
Did you say one meter ?You'll have to give the box 49 joules of additional gravitational potential energy.But since the human muscular system is not 100% efficient, you'll have to spendsomewhat more energy than that in order to do the job. The additional energythat you put into the effort will show up in the form of elevated body temperature,increased heart rate and blood pressure, and warm perspiration on your brow.
What is The Function of Meter?
it is use to measure electric potential (voltage).
What is potential gradient?
The rate of change of potential with respect to distance is called potential gradient. its unit is volt per meter or newton/coulomb.
Why is the gravitational potential energy of an objects 1 meter above the moons surface less than its potential energy 1 meter above Earths surface?
because the value of gravitational force of earth is greater than that of moon.
Why is gravitational potential energy of an object 1 meter above the Moon's surface less than it's potential energy 1 meter above earth's surface?
There is less gravity on the Moon. Gravitational potential energy can be calculated by multiplying weight x height, or the equivalent mass x gravity x height.
Why is the gravitational potential energy of an object 1 meter above the Moon's surface less than its potential energy 1 meter above Earth's surface?
The gravitational potential energy of an object is determined by the mass of the object, the acceleration due to gravity, and the height. The Moon has a lower mass and weaker gravitational pull compared to Earth, resulting in less gravitational potential energy for an object at the same height above their surfaces.
What is a skier's gravitational potential energy at 10 meters?
Just use the formula for gravitational potential energy, which is equal to mgh (mass x gravity x height). Close to Earth, gravity is approximately 9.8 newtons/meter.
What is the potiential energy of the 85 kg rock?
For every meter it's raised, it gains 833 more joules of gravitational potential energy.
Which would have more potential energy a man diving form a 2 meter board or a man diving from a 10 meter board?
Assuming that the two are the same man ... the man diving from a 10 meter board would have five times the potential energy as the man on the 2 meter board. The energy is directly proportional to the height.
What is the units for gpe?
the units for gravitational potential energy is joules (j)
What type of energy an object has when held 1 meter above ground?
The object held 1 meter above the ground has gravitational potential energy, which is the energy stored in an object due to its position relative to the Earth's surface. This potential energy is based on the height of the object above the ground and the force of gravity acting on it.
What are some factors that affect potential energy?
(Gravitational) potential energy = mgh (mass x gravity x height). Those are the three factors. In standard units (SI), mass is given in kg., gravity is around 9.8 meter / second square, and the height should be given in meters.
What is the potential energy of a 2kg case sitting on a table with a height of 1 meter?
The potential energy of the 2kg case sitting on the table is equal to the gravitational potential energy, which is given by the formula PE = mgh, where m is the mass (2kg), g is the acceleration due to gravity (approximately 9.81 m/s²), and h is the height (1 meter). Plugging in the values, the potential energy is calculated as PE = 2kg * 9.81 m/s² * 1m = 19.62 Joules.
What is the rocks gravitational potential energy if it is at 100 meter height the rock mass is 1kg'?
The gravitational potential energy of the rock can be calculated using the formula: GPE = mgh, where m is the mass (1 kg), g is gravitational acceleration (9.81 m/s^2), and h is the height (100 m). Substituting the values into the formula, we get GPE = 1 kg * 9.81 m/s^2 * 100 m = 981 Joules.
A ball of weight 10N is dropped freely from rest at a height of 4 m.what is its total mechanical energy after it has traveled 1 meter?
If you are ignoring energy lost due to friction, the total mechanical energy will be the same after it has traveled 1 meter as when it was dropped. This means the easiest way to solve the problem is to find the mechanical energy at the beginning, when the ball is at rest and all of its mechanical energy is gravitational potential energy. Gravitational potential energy equals mass*g*height. Since mass*g equals weight, we can just multiply 10N by 4m, making the total mechanical energy 40J.After it has traveled 1 meter, some of the gravitational potential energy has been converted into kinetic energy. The gravitational potential energy is just the weight of 10N multiplied by the height of 3m, or 30J. To find the kinetic energy, we need to find velocity2, which equals 2 times acceleration (g) times displacement (1m) when the initial velocity is 0. We also need the mass, which is weight (10N) divided by g. Kinetic energy equals (1/2)*mass*velocity2, so we get (1/2)*10N÷g*2*g*1m, which equals 10J, so the total mechanical energy is still 40J.
