A negative slope's graph slopes downhill from left to right. When viewing a graph on a xy coordinate plane, the slope is negative because as x rises, y falls.
What graph about negative downward slope direction?The line is sloped downhill from left to right when there is a negative slope. Here, the inverse link between the two variables depicted along the x- and y-axes of the negative slope graph applies. The other variable decreases when the first variable goes up.
Negative values are below the origin on the y-axis and to the left of the origin on the x-axis. If the x-value is negative, begin at the origin and go to the left. In the event that the y-coordinate is negative, descend.
A line that slopes positively ascends from left to right. Remember that a line with a negative slope descends from left to right.
Therefore, Graph below the x axis and in the negative downward slope direction.
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The greater the blank of a moving object, the blank it has
Answer:
The greater the MASS of a moving object, the GREATER KINETIC ENERGY it has.
Explanation:
Anytime matter is in motion it has kinetic energy. The faster an object moves, the more kinetic energy it has. The more mass an object has, the more kinetic energy it has.
A negatively charged rod is brought near an object. The protons in the object move towards the rod, while the electrons move to the opposite side of the object. The separation of the charges are called_____.
The creation of space between particles with opposing charges is known as charge separation, sometimes known as static electricity.
Why is static electricity a charge?When the positive and negative charges are out of balance, static electricity is produced. While electrons like to hop all over the place, protons and neutrons don't move around very much. A negative charge is present when an object (or person) possesses more electrons. A common electric phenomena called static electricity occurs when charged particles are transmitted from one body to another. For instance, when two insulators are rubbed together and the air around them is dry, the resulting charges are equal and opposite to one another. The term "static electricity" describes an imbalance of electric charges in a body, more precisely, the imbalance of negative and positive charges.
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Silver has a density of 10. 5g/cm3 and gold has a density of 19. 3g/cm3. Which would have a greater mass, 5cm3 of silver or 5cm3 of gold ?
Gold has a greater mass than silver,
5cm³ of gold has a mass of 5 × 19.3g/cm³ = 96.5g,
While 5cm³ of silver has a mass of 5 × 10.5g/cm³ = 52.5g.
To compare the masses of 5 cubic centimeters (cm³) of silver and gold, we need to multiply their densities by the volume.
For silver:
[tex]mass = density * volume[/tex]
= mass
=[tex]10.5 g/cm^3 * 5 cm^3[/tex]
= 52.5 g
For gold:
[tex]mass = density * volume[/tex]
= mass
= [tex]19.3 g/cm^3 * 5 cm^3[/tex]
= 96.5 g
Hence, 5 cm³ of gold has a greater mass than 5 cm³ of silver, 96.5 g > 52.5 g.
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would a positive test particle released from rest move toward a region of higher or lower electric potential (compared to the electric potential at the point where it is released)?
A positive test particle released from rest would move towards a region of lower electric potential (compared to the electric potential at the point where it is released).
It is because of the fact that positive test particle is attracted to regions of higher electric potential and repelled by regions of lower electric potential. Since the particle is released from rest, it has no kinetic energy to overcome the potential energy barrier and move against the direction of the electric field. Therefore, it will move in the direction of decreasing electric potential, which is towards the region of lower electric potential.
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1) return the observer back to their original position, 0 degrees n and 96.7 degrees w. where in the sky would the observer look to see the constellation orion? group of answer choices directly overhead (at the zenith) on the meridian, but north of the zenith on the meridian, but south of the zenith
If the observer was to look up at midnight in late December from 0 degrees N and 96.7 degrees W, they would see Orion slightly to the south of the zenith on meridian.
What is an Orion?Orion is a constellation that can be seen from northern and southern hemispheres, and it passes near celestial equator. At around midnight in late December, Orion is visible in southern sky, slightly to the south of zenith.
To find the position of Orion in the sky, we need to know the observer's location and the current time. At the equator (0 degrees latitude), the celestial equator (an imaginary line in the sky directly above the Earth's equator) passes directly overhead. Therefore, if the observer is looking straight up (at the zenith), they would be looking at the celestial equator.
If the observer were to look up at a different time of year, or from a different location, the position of Orion in the sky would be different.
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why do we need to follow the suggested activities given in the philippines physical activity guided (PPAP)
The PPAG recommends a variety of physical activities, such as aerobic exercises, muscle-strengthening exercises, and flexibility exercises. It also includes recommendations for the frequency, intensity, and duration of physical activity for various age groups and skill levels.
Individuals can ensure that they are getting the right amount and type of physical activity for their health and well-being by following these guidelines.
The Philippines Physical Activity Guidelines (PPAG) provide evidence-based physical activity recommendations to improve health and well-being. Following the PPAG's suggested activities can provide numerous benefits, including:
Improving overall health: Physical activity is linked to a lower risk of chronic diseases like heart disease, stroke, diabetes, and certain types of cancer. It can also aid in the management of chronic conditions like high blood pressure, high cholesterol, and obesity.
Physical activity has been shown to reduce symptoms of depression and anxiety, as well as improve overall mood and emotional well-being.
Improving physical function: Regular physical activity can help improve strength, flexibility, balance, and coordination, lowering the risk of falls and improving overall physical function.
Physical activity is an important component of a healthy weight management plan because it helps burn calories and maintain muscle mass.
Increasing social connections: Physical activities can provide opportunities to connect with others and build social support networks.
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. how was a lambda maximum (wavelength maximum) empirically determined? did your maximum coincide with the published maximum?
The wavelength known as lambda max provides information on the energy level of incoming radiations that a substance absorbs during its excitation.
Explain the method to find lambda maximum?Wavelength provides information on the radiation's intensity upon entry. It is crucial to spectroscopy because certain compounds exhibit peaks that are unique to their substituent r groups.
To begin a quantitative study, you must first determine the compound's lambda maximum in an appropriate solvent .You must create a calibration curve for the working range at lambda maximum using your standard compound at various concentrations in an effort to make the calibration curve relatively linear and regression constant (R2) values as close to 1.Always remember to include the dilution factor when calculating the concentration when preparing your compound for that solvent (if the amount of your component is out of range, dilute the sample).To achieve the absorbance value of 2, you must absorb the most.
A = 2-log%T in the equation.
If your substance has a greater absorbance, dilute it accordingly to attain the highest absorbance possible.
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A pump is used to spray water from a pool, determine
the maximum power of the pump. If 40 litres of water
water from a pool, determine
is pumped per minute and the spray reaches the maximun
height of 60m (assume that I litre of water has a mass
of 1 kg and that g = 10ms ²²).
The maximum power of the pump is 24,000 W.
How did we get the value?To determine the maximum power of the pump, we need to calculate the work done by the pump in lifting the water to a height of 60m.
First, we need to find the weight of the water that is pumped per minute:
40 litres of water * 1 kg/litre = 40 kg
Next, we can calculate the work done by the pump using the formula for work done by a force:
W = F * d
Where W is the work done, F is the force applied and d is the distance moved.
Since the weight of the water is the force acting on it, we can use that in the above formula:
W = 40 kg * 10 m/s^2 * 60 m = 24,000 J/minute
Finally, we can convert the work done per minute to power, using the formula:
P = W / t
Where P is the power and t is the time taken.
Since we know that 40 litres of water are pumped in 1 minute, we can use that as t:
P = 24,000 J/minute / 1 minute = 24,000 W
So, the maximum power of the pump is 24,000 W.
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find strength of electric field formed by a 150.0 cm charged rod with linear charge density of 120 c at distance of 80.0 cm on central axis?
The strength of the electric field formed by the charged rod at a distance of 80.0 cm on its central axis is 1.35 x 10^12 N/C.
The electric field created by a charged rod at a point on its central axis can be calculated using the formula,
[tex]E = \dfrac{k \lambda}{r}[/tex]
where k is Coulomb's constant (k = 9.0 x 10^9 N m^2/C^2), lambda is the linear charge density of the rod in C/m, and r is the distance from the rod to the point where the electric field is being measured, also in meters.
Substituting the given values,
[tex]E = \dfrac{9.0 \times 10^9 \times 120}{0.8}[/tex]
E = 1.35 x 10^12 N/C
Therefore, the strength of the electric field formed by the charged rod at a distance of 80.0 cm on its central axis is 1.35 x 10^12 N/C.
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if the solar system were scaled down in size so that the sun were as big as a cantaloupe, neptune would be as big as: group of answer choices a cantaloupe. a pea. a sesame seed. a grape.
The correct option is Grape. Assuming the sun is scaled down to the size of a cantaloupe, Neptune would be approximately the size of a grape.
The actual diameter of the sun is about 1.39 million kilometers, while the diameter of Neptune is about 49,244 kilometers. This means that the sun is about 28 times larger than Neptune. If we scale down the sun to the size of a cantaloupe, which has a diameter of about 13 centimeters, then Neptune would have a diameter of approximately 0.46 centimeters, which is about the size of a grape.
To give you a better idea of the scale involved, let's compare the sizes of the sun and Neptune in their actual sizes. The sun has a diameter of about 1.39 million kilometers, while Neptune has a diameter of about 49,244 kilometers. This means that the sun is over 28 times larger than Neptune in diameter.
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As the earths crust and early atmosphere was formed, it is believed that _______ played a huge role in adding gases
As the earth crust and early atmosphere was formed, it is believed that _volcanic activity_ played a huge role in adding gases.
It is believed that volcanic activity played a huge role in adding gases to the early Earth's atmosphere as the crust and early atmosphere were formed Volcanoes release a variety of gases, including water vapor, carbon dioxide, sulfur dioxide, and nitrogen oxides, among others. These gases were released in large quantities during the early stages of Earth formation when the planet was still cooling and the crust was being formed. Volcanic activity was much more frequent and intense during this time, and as a result, large amounts of gases were released into the atmosphere. The release of these gases had a significant impact on the evolution of the early Earth's atmosphere. Carbon dioxide, for example, was a major component of the early atmosphere and played a key role in regulating the planet's temperature. As more carbon dioxide was released into the atmosphere, it trapped more heat from the sun, leading to a greenhouse effect that kept the Earth warm enough to support life. Water vapor, another important gas released by volcanoes, also contributed to the greenhouse effect and played a key role in the formation of oceans and the evolution of life on Earth. In addition to adding gases to the early Earth's atmosphere, volcanic activity also played a role in shaping the planet's crust and creating the conditions that allowed life to develop. The minerals and nutrients released by volcanoes provided the raw materials necessary for the formation of rocks, soils, and living organisms. The heat and pressure generated by volcanic activity also helped to create the conditions necessary for the formation of ore deposits, oil and gas reserves, and other valuable resources that are still being exploited by humans today.
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the wing of an airplane has an average cross-sectional area of 13 m2 and experiences a lift force of 84,000 n. what is the average difference in the air pressure between the top and bottom of the wing?
The average difference in air pressure between the top and bottom of the wing is 8,400 Pa. Bernoulli's principle states that as fluid speed (such as air) increases, the pressure within the fluid decreases.
Assuming that the airflow over the wing is laminar, we can use Bernoulli's equation to find the difference in air pressure between the top and bottom of the wing:
P1 + 1/2 * rho * v1^2 = P2 + 1/2 * rho * v2^2
Where:
P1 is the pressure on the bottom of the wing
P2 is the pressure on the top of the wing
rho is the density of air (1.2 kg/m3 at sea level)
v1 is the velocity of airflow on the bottom of the wing
v2 is the velocity of airflow on the top of the wing
Since the wing is generating lift, we know that the upward force is equal to the airplane's weight, which is 84,000 N. We can also assume that the airflow on the bottom of the wing is roughly horizontal and that the airflow on the top is roughly vertical. Therefore, we can use the equation for the lift force:
L = 1/2 * rho * v2^2 * A
where:
L is the lift force (84,000 N)
A is the cross-sectional area of the wing (13 m2)
Solving for v2, we get:
v2 = sqrt(2 * L / (rho * A))
Plugging this into Bernoulli's principle equation and assuming that the velocity on the bottom of the wing is negligible (v1 ≈ 0), we get:
P2 - P1 = 1/2 * rho * v2^2
Substituting the values we have, we get:
P2 - P1 = 1/2 * 1.2 kg/m3 * (sqrt(2 * 84,000 N / (1.2 kg/m3 * 13 m2)))^2
Simplifying this equation, we get:
P2 - P1 = 8,400 Pa
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why does the predicted speed of block z after the collision not agree with the actual speed of block z after the collision?
There could be various reasons some are:
1. Ignoring external factors: If there were external factors, such as friction or air resistance, that were not taken into account in the calculation, the predicted speed of block z after the collision may not match the actual speed.
2. Inaccurate initial conditions: If the initial conditions, such as the velocities or positions of the blocks, were not measured accurately or were assumed incorrectly in the calculation, the predicted speed of block z after the collision may not agree with the actual speed.
In general, predicting the outcome of a collision is a complex problem that requires accounting for many factors, some of which may not be fully understood or measurable. As a result, there may be differences between predicted and actual outcomes, especially in real-world scenarios.
To determine the exact reason why the predicted speed of block z after the collision does not agree with the actual speed, a careful analysis of the calculations, measurements, and assumptions made would be necessary.
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a boy on a ladder 2.0 m high has a mass of 63.5 kg. what is his potential energy, relative to the ground?
The potential energy relative to ground will be 1245.445 J. If mass= 63.5 kg, height =2m.
What is potential energy?Potential energy in physics is the energy that an item retains as a result of its position in relation to other objects, internal tensions, electric charge, or other elements.
The gravitational potential energy of an item, the elastic potential energy of a stretched spring, and the electric potential energy of an electric charge in an electric field are examples of common types of potential energy. The joule, denoted by the letter J, is the energy unit in the International System of Units (SI).
Although it has connections to the Greek philosopher Aristotle's concept of potentiality, the word potential energy was coined by the Scottish engineer and physicist William Rankine in the 19th century[3][4]. Forces acting on a body in a way that increases the total work have potential energy attached to them.
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what are two ways that machines make work easier?
Answer:
1. Machines can increase the speed of a task, allowing more work to be done in a shorter amount of time.
2. Machines can reduce the amount of physical effort required to complete a task, allowing for more efficient use of energy.
How would you choose a Gaussian surface for a particular charge distribution?
Choose a Gaussian surface based on the symmetry of the charge distribution, and enclose the entire charge distribution.
To choose a Gaussian surface for a particular charge distribution, one should consider the symmetry of the charge distribution.
The Gaussian surface should be chosen such that the electric field due to the charge distribution is constant over the surface and the surface encloses the entire charge distribution.
If the charge distribution exhibits spherical symmetry, a spherical Gaussian surface should be chosen. If the charge distribution is planar or cylindrical, a cylindrical or planar Gaussian surface, respectively, should be chosen.
For more complex charge distributions, it may be necessary to choose multiple Gaussian surfaces to fully enclose the charge distribution and simplify the calculations. In general, the choice of Gaussian surface should be made to take advantage of any symmetries in the charge distribution and to simplify the calculations of the electric field.
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the distance an object falls per second while only under the influence of gravity forms an arithmetic sequence with it falling 16 feet in the first second, 48 feet in the second, 80 feet in the third, etcetera. what is the total distance an object will fall in 10 seconds? show the work that leads to your answer.
Answer:
For an arithmetic progression:
a = 16 first term distance fallen in 1 sec
d = 32 and L = (n - 1) d additional distance d in following seconds
S1 = a = 16
S2 = a + 32 = 48
S3 = a + 64 = 80
S10 = 16 + 288 = 304 arithmetic sequence
S = 1/2 n (a + L) = 10 / 2 (16 + 304) total distance in 10 terms
S = 5 * 320 = 1600 ft
Physics formula:
S = V0 t + 1/2 g t^2 V0 = 0 at t = 0
S = 32 / 2 * 100 = 1600 ft
Identify the areas of physics involved in each of the following tests of lightweight metal alloy proposed for use in sailboat hulls.
a. Testing the effects of collision on the alloy
b. Testing the effects of extreme heat and cold on the alloy
c. Testing whether the alloy can affect a magnetic compass needle
The areas of physics involved in each of the following tests of lightweight metal alloy proposed for use in sailboat hulls are as follows:
a. Testing the effects of a collision on the alloy - The area of physics involved in this test is mechanics, specifically the study of forces and motion.
b. Testing the effects of extreme heat and cold on the alloy - The area of physics involved in this test is thermodynamics, specifically the study of heat and temperature and their relation to energy and work.
c. Testing whether the alloy can affect a magnetic compass needle - The area of physics involved in this test is electromagnetism, specifically the study of the relationship between electricity and magnetism.
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An airplane flies with a constant speed of
780 miles per hour. How long will it take to travel a distance of 2535 miles?
Answer:
3 hours 18 minutes
Explanation:
2535 miles ÷ 780miles/hr = 3.30 which is 3 hrs and 18min
HELP ME ASAP. this is science unit 2 waves
Waves A and B have clearly different frequencies.
What is a frequency?
Using a stroboscope is an antiquated technique for determining the frequency of spinning or vibrating objects. The frequency of this strong, repeatedly flashing light (strobe light) can be changed using a precise timing circuit. The rotating item is the target of the strobe light, which has its frequency moved up and down. The object completes one cycle of oscillation and returns to its original position between flashes of light when the frequency of the strobe and the rotating or vibrating object are equal. As a result, when illuminated by the strobe, the object appears stationary. The calibrated readout on the stroboscope can then be used to determine the frequency. The method's drawback is that an object rotating at a rate that is an integer multiple of the strobing.To know more about frequencies, click the link given below:
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Dark moths began to outnumber white moths in cities after the Industrial Revolution. What is the most likely reason for this change?
answer choices
Light-colored moths mutated into dark colored moths.
Light-colored moths began to die due to overpopulation.
Light-colored moths were less favored for survival in the new environment.
Light-colored moths began to turn black because of factory pollution.
The most likely reason for the change in moth coloration is that light-colored moths were less favored for survival in the new environment.
What is Industrial Revolution?In the late 18th and early 19th centuries, there was a huge period of economic and social transformation known as the Industrial Revolution. It started in Britain and later expanded to the rest of Europe and North America. Rapid industrialization and technological advancement throughout the Industrial Revolution changed how things were produced and distributed, spurring the development of new industries and contemporary cities.
A number of events led to the start of the Industrial Revolution in Britain around the middle of the eighteenth century. The abundance of natural resources, such as coal and iron ore, which were used to power the machinery and industries that would propel the Industrial Revolution, was one of the main motivators. Britain also had a solid banking system and a stable administration, which promoted investment and development. Technological advancements like the steam engine and the spinning jenny made it possible to produce items more quickly and effectively, while the construction of new transportation infrastructure like railroads and canals made it simpler to carry finished goods and raw materials.
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witch of nutents laws describes why and elephant has large amounts of inertia?
Answer: Newton's 1st Law
HOPE THIS HELPS _ MM
Which is the measure of the average kinetic energy of atoms or molecules that compose a substance?
a) Heat
b) Temperature
Answer:
The correct answer is b) Temperature.
Explanation:
Temperature is a measure of the average kinetic energy of atoms or molecules that compose a substance. Heat is the amount of energy transferred from one object to another.
explain how energy is conserved in the roller coaster ride include descriptions to at least on energy transfer and least two energy’s transformation
During the ride, no energy is gained or lost. The automobiles' kinetic energy passes to the track, shaking it as energy flows from one location to another.
What is energy transformation?Energy transformation is when the energy is transformed into another energy. Kinetic energy is converted into potential energy, which is subsequently converted back into kinetic energy.
Friction between the cars and the track also converts it from kinetic to thermal energy. The overall amount of energy doesn't change, though.
Therefore, no energy is acquired or lost during the ride. The track is shaken as a result of the kinetic energy of the cars moving from one place to another.
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what is the linear velocity in miles per hour of the tip of a lawnmower blade spinning at 2500 revolutions per minute in a lawnmower that cuts a path that is 22 inches wide?
The linear velocity in miles per hour of the tip of the lawnmower blade spinning at 2500 revolutions per minute in a lawnmower that cuts a path 22 inches wide is approximately 2.724 miles per hour.
To determine the linear velocity in miles per hour of the tip of the lawnmower blade, we need to use the following formula:
v = ωr
Where:
v is the linear velocity of the tip of the lawnmower blade in miles per hour
ω is the angular velocity of the lawnmower blade in radians per minute
r is the radius of the lawnmower blade.
We know that the lawnmower blade is spinning at 2500 revolutions per minute. To convert revolutions per minute to radians per minute, we need to multiply by 2π. So, the angular velocity of the lawnmower blade is: ω = 2500 rpm * 2π/60 = 261.66 rad/min
The lawnmower blade's radius is half the width of the path it cuts. Since the path is 22 inches wide, the radius is: r = 22 inches / 2 = 11 inches. To convert inches to miles, we need to divide by 63,360 (the number of inches in a mile). So, the radius in miles is:
r = 11 inches / 63,360 inches/mile = 0.0001736 miles
Now, we can use the formula to find the linear velocity:
v = ωr = 261.66 rad/min * 0.0001736 miles = 0.0454 miles/min
To convert miles per minute to miles per hour, we need to multiply by 60. So, the linear velocity in miles per hour is:
v = 0.0454 miles/min * 60 min/hour = 2.724 miles/hour
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Linear velocity in miles per hour of the tip of a lawnmower blade spinning at 2500 revolutions per minute in a lawnmower that cuts a path that is 22 inches wide is 2.724 miles per hour.
Velocity is the rate of change in position of an object with the specific time period or time range . When the object moves along a straight path or the linear path with a particular velocity than that velocity is termed linear velocity. It is given as the ratio of distance covered to time.
The linear velocity formula is v = d/t.
v = ωr
v is linear velocity
ω is angular velocity
r is radius
v = ωr = 261.66 rad/min * 0.0001736 miles = 0.0454 miles/min
v = 0.0454 miles/min * 60 min/hour = 2.724 miles/hour
Angular velocity is basically a time rate at which an object rotates, or an object revolves, about an axis, or the rate at which angle of the body changes.
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A 2.0 Ω resistor is connected across a 6.0 V power supply. An ammeter with internal resistance of 1.0 Ω is used to measure the current in this circuit. What is the ammeter reading?
Ammeter with internal resistance of 1.0 Ω, gives reading of 2.0 A.
To determine the ammeter reading, calculate the total resistance of the circuit and then use Ohm's law to find the current.
The total resistance of the circuit is the sum of the resistance of the 2.0 Ω resistor and the internal resistance of the ammeter, which gives,
R_total = R_1 + R_ammeter = 2.0 Ω + 1.0 Ω = 3.0 Ω
Using Ohm's law, calculate the current in the circuit,
I = V / R_total
where V is the voltage of the power supply.
Substituting the given values,
I = 6.0 V / 3.0 Ω = 2.0 A
Therefore, the ammeter reading is 2.0 A.
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Ultraviolet, visible, and infrared light are all examples of _______ radiation, which has the properties of both particles and __________.
Answer:
Ultraviolet, visible, and infrared light are all examples of electromagnetic radiation, which has the properties of both particles and waves.
Explanation:
If a cloud passes in front of sirius and reduces the flux that reaches you by a factor of 3, how many times brighter than vega will it be?
Vega will be about 6.5 times brighter than Sirius after the cloud passes in front of it.
The flux received from a star is,
Flux = Luminosity / (4π × distance²)
According to the HYG Database, Sirius has a distance of about 8.6 light years from us, while Vega has a distance of about 25 light years.
Original flux received from Sirius as F(S), then the flux received after the cloud passes in front of it will be 1/3 F(S). To calculate the relative brightness of Vega compared to Sirius,
(d(Sirius) / d(Vega))² = F(Vega) / F(Sirius)
where d(Sirius) and d(Vega) are the distances between Sirius and Vega, respectively.
F(Vega) = F(Sirius) × (d(Vega) / d(Sirius))²
= (1/3 F(S)) × (25 / 8.6)²
≈ 6.5 × F(Sirius)
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2. A young kid is playing catch with himself by throwing a ball straight up. How fast does he throw it if
the ball comes back to his hands a second later? What was the maximum height of the ball? Ignore air
resistance.
When the ball returns to his hands 0.6 seconds later, Low speeds have very little air friction. Youngster playing catch with himself while wearing a large baseball cap.
What is an object's speed?
The speed by which an object moves a distance could be thought of just like its speed. A slow-moving object travels a relatively short distance in a given length of time, whereas a fast-moving object travels a big distance in a short amount of time.
What does speed look like mathematically?
Speed is mathematically represented as follows: Distance dimension formula: M0L1T0 Time has the following dimensions: M 0 H 0 T 1. By dividing the dimensional formulas for time and distance, we arrive to the following result:
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2. A weight lifter lifts a set of weights a vertical distance of 2.00 m. If a con-
stant net force of 350 N is exerted on the weights, what is the net work done
on the weights?
The work done by the weightlifter which covers a distance of 2 m and a constant net force of 350 N is 700 Joules.
What is Work done?The work done by a force is the product of the displacement of object and the component of applied force of the object in the direction of displacement of the object. When we push a block with some force 'f', then the body moves with some amount of acceleration, and work is done.
The force exerted to lift the weight, F is 350 N
The work done by the body is defined as the product of the force applied by the body to the displacement it caused.
W = F x s
W = 350 N x 2 m
W = 700 J
The work done by the weightlifter, W = 700 J
The time taken by the weightlifter to lift the weight, t = 2 s
The power is given by the equation,
P = W / t
P = 700 J / 2 s
P = 350 watts
Hence, the power of the weightlifter, P = 350 watts.
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