Physics

Simplicity of conducting the study is to ________ as ability to test large numbers of participants is to ________.
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A strong weightless rope has a mass, m, hanging from the middle of it. The tension force on each rope is 25 N, and the rope droops at an angle of 20.0 degrees. How much mass is hanging from the rope?
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What is the acceleration due to gravity in a region where a simple pendulum having a length 75.000 cm has a period of 1.7357 s?
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Two Magnets are placed near each other on the space station orbiting earth. The south poles are facing each other which statement explains what what happen to the magnets.A. They will be repelled because they are in each others magnetic fieldB. They will be attracted because theyre magnetic fields will add togetherC. They will not move because they are not in earths gravitational field. D. They will not move because they do not have electric fields.
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Which statement about cultural differences in reinforcement is TRUE?A. People from individualistic cultures may find the ability to get relatives jobs more reinforcing than people fromcollectivistic cultures.B. People from individualistic cultures may find awards that single them out as more reinforcing than people fromcollectivistic cultures.C. Women from individualistic cultures may place more importance on convenient working hours than women fromcollectivistic cultures.D. People from individualistic cultures find higher pay more reinforcing than people from collectivistic cultures.
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Assertion: In domestic electric circuits, the metallic body is connected to the earth wire, whichprovides a low-resistance conducting path for the current.Reason: It ensures that any leakage of current to the metallic body of the appliance keeps itspotential to that of the earth, and the user may not get a severe electric shock. pls fast
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1. A student adds water and sugar to a jar and seals the jar so that nothing can get in or out. Thestudent then finds the mass of the jar containing the water and sugar. After some sugar dissolves, thestudent finds the mass of the jar and its contents again.WaterSugarandWaterSugarSugarBeforeAfterVhat will happen to the mass of the jar containing the water and sugar after some of the sugarissolves?a. The mass will stay the sameb. The mass will increasec. The mass will decreaseThe moon will donend on how much sunar dissolves
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A block of mass M is attached to a spring of negligible mass and can slide on a horizontal surface along the x-direction, as shown above. There is friction present between the block and the surface. The spring exerts no force on the block when the center of the block is located at x=0. At the instant shown above, the block is located at x=0 and moving toward the right with speed v=v0. (a) For the instant shown above, with the block located at x=0 and moving to the right, predict the direction of the net force on the block. If the net force is zero, select The net force is zero._ To the left _ The net force is zero _ To the rightBriefly justify your prediction.
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Whats 5.1 cm in Newtons?
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A dart is thrown at a target that is supported by a wooden backstop. It strikes the backstop with an initial velocity of 350 m/s [E] The dart comes to rest in 0.0050 s. a. What is the acceleration of the dart? b. How far does the dart penetrate into the backstop?
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HELP!!!Which of the following statements is true about magnets?A. The molecules of the atom are unalignedB. The orientation of atoms does not affect a magnetC. The north pole is stronger than the south poleD. The molecules of the atom are all alignedGiving brainliest to the correct answer! (If both are correct I'll give whoever answered correctly 1st brainliest!)
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Jennie observes her brother playing pool and has a theory that the potential energy in the pool stick is transformed into kinetic energy when he hits the ball.
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How much work does an elephant do while moving a circus wagon 60 meters with a pulling force of 240N
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What is the density of a substance that has a volume of 30ml and a mass of 20g?
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Describe the way that distance is changing in relation to tiMe
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20 . A car of mass 2000 kg is moving with a constant velocity of 10 m/s due east. What is the momentum of the car
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Twins Bo and Joe have a combined mass of 200 kg and are zooming along at 10 m/s in a 100 kg amusement park bumper car. They bump into Melindas car, which is sitting still. Melinda has a mass of 25 kg and is also in a 100 kg car. After the collision, the twins continue moving with a speed of 4.12 m/s.a. What is the initial momentum of the system?b. What must be the final momentum of the system?c. How fast is Melindas car bumped across the floor?
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Two rocks with different masses fall side by side, pulled downward by gravity. Why are they able to experience the same motion?(1 point)The rock with more mass will also have more force pulling it down. Even though the accelerations are different, the rocks will have the same speed.The rock with more mass will also have more force pulling it down. Even though the accelerations are different, the rocks will have the same speed.The rock with more mass will also have more force pulling it down, so the accelerations can be the same.The rock with more mass will also have more force pulling it down, so the accelerations can be the same.Gravity will pull the rocks down equally, so the accelerations can be the same.Gravity will pull the rocks down equally, so the accelerations can be the same.Gravity will pull the rocks down equally. Even though the accelerations are different, the rocks will have the same speed.
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What is the difference between speed and velocity?
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Please help me with this question,giving the first correct answer brainliest
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How much tension must a rope withstand if it is used to accelerate a 1710-kgkg car horizontally along a frictionless surface at 1.30 m/s 2 m/s2
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Gravity is whatA 0.98 N.B 5N.C 10 N.D 100 N.E none of the above
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A stereo speaker produces a pure "A" tone, with a frequency of 220.0 Hz. What is the period of the sound wave produced by the speaker?T= What is the wavelength water of the same sound wave as it enters some water, where it has a speed of about 1480 m/s? water= What is the wavelength air of this sound wave as it travels through air with a speed of about 341 m/s? air=
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An object with a mass of 5 kg is accelerated from rest by a 60 N*s impulse. What is the change in the object's velocity?
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