Physics

At a construction site, a crane lifts an object to a certain height in 12 seconds, and a second crane does the same work in 6 seconds. Compared to the power developed by the first crane, the power developed by the second crane is which of the following?A. The sameB. One-half as muchC. Twice as muchD. Four times as much
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how do the properties of waves correspond with observations of waves?
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Given that the radius of the moon is roughly one-quarter that of the earth, find the mass of the moon in terms of the mass of the earth
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In the winter, monarch butterflies travel from the United States to Mexico, where the weather is warmer. They return to the United States in the spring.-----------------------------------------------------------------------------Which behavior does this scenario describe?o Conditioningo Hibernatingo Imprintingo Migrating
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The force of gravity on an object gives the object its _______.A. massB. kilogramC. acceleration of gravityD. weight
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What is environmental?
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Planets A and B have the same mass, but planet A is half the size of planet B.Which statement correctly explains the weight you would experience on eachplanet?A. You would weigh the same on both planets because the massesof the planets are the same.B. You would weigh less on planet A because the distance betweenyou and the planet's center of gravity would be smaller.C. You would weigh the same on both planets because your masswould be the same on both.O D. You would weigh more on planet A because the distance betweenyou and the planet's center of gravity would be smaller.
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15. A 0.500-kg mass suspended from a spring oscillates with a period of 1.50 s. How much mass must be added to the object to change the period to 2.00 s?The answer is 0.389 kg but please show your work.
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Hello people~ help me with this question ^^An electroscope is a device which is used to find if an object is(a) charged(b) magnetic(c) free of cracks(d) hot
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The inner planets are different from the outer planets mainly because they are:.
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Franklin is loading a truck at work and his truck has a ramp that helps him move the boxes up. the incline of the ramp is 9 feet long and the top of the ramp is 3 feet off of the ground. what is the mechanical advantage of the incline franklin is using?
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An unbalanced force acting on an object results in ______.A. inertiaB. frictionC. accelerationD. fasterE. slower
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Whats the weight of a box w/ a mass of 150kg on earth?
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Following a lecture on transverse and longitudinal waves, four students make venn diagrams to characterize these waves. which venn diagram is correct? a venn diagram with two intersecting circles. the circle on the left is labeled transverse waves with entries light, can travel through a vacuum, vibrating string, created by a disturbance and medium motion is perpendicular. the circle on the right is labeled longitudinal waves with entries medium motion is parallel, has regions of high and low density, sound and travel faster in a denser medium. the overlapping region has entries has speed and travels through solids. a venn diagram with two intersecting circles. the circle on the left is labeled transverse waves with entries light, can travel through a vacuum, vibrating string and medium motion is perpendicular. the circle on the right is labeled longitudinal waves with entries medium motion is parallel, has regions of high and low density, sound and travel faster in a denser medium. the overlapping region has entries, created by a disturbance, has speed and travels through solids. a venn diagram with two intersecting circles. the circle on the left is labeled transverse waves with entries light, all parts of the electromagnetic spectrum, vibrating string, medium motion is perpendicular. the circle on the right is labeled longitudinal waves with entries medium motion is parallel, has regions of high and low density, sound and can travel through a vacuum. the overlapping region has entries, created by a disturbance, has speed and travels through solids. a venn diagram with two intersecting circles. the circle on the left is labeled transverse waves with entries light, can travel through a vacuum, vibrating string and medium motion is perpendicular. the circle on the right is labeled longitudinal waves with entries medium motion is parallel, has regions of high and low density, all parts of the electromagnetic spectrum and travel faster in a denser medium. the overlapping region has entries, created by a disturban
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5. A mass attached to a spring oscillates and completes 50 full cycles in 30 s. What is the time period and frequency of this system?Please show all of your work.
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A student in the Biomechanics class has decided that she would like to make her armsstronger. She has a mass of 63 kg, She chooses to complete some elbow flexion exercisesusing a kettlebell. For this problem, consider the hand and forearm to be a single segment.The distance from her elbow to her wrist is 22.86 cm.The force from the kettlebell is applied to her hand, which is 30.48 cm from her elbow joint.She knows that the moment arm of the elbow extensor muscles about the elbow axis is
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Why was the government in giving support to addressing and researching the HIV epidemic ?
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A bottle of soda always has a space between the cape and the top of the liquid. Explain
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Light travels in waves. Which of the following statements about light waves is NOT true?A They travel in straight lines.B They can travel through any substance.C They can come from natural or artificial sources.D They change direction when they are reflected or refracted.
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which of the following elements has the highest combined number of protons an neutrons A . hydrogen : 1 amuB. Nirtogen 14 amu C . Oxygen 16 amuD. Boron 10 amu
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Help its due in 2 hoursPhysics Word Problem An archer shoots an arrow at a 75 m distant target; the bulls-eye of the target is at same height as the release height of the arrow. If d = 75 m and v = 37 m/s. At what angle must the arrow be released to hit the bulls-eye if its initial speed is 37m/s?
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Why would it be impractical to wire a home with a circuit in which all loads were connected in series.
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A photon with wavelength 11. 0 nm is absorbed when an electron in a three-dimensional cubical box makes a transition from the ground state to the second excited state
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Describe gravitational force in your own words. Which two factors affect the gravitational force between two objects?
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