Master Physics with Fun Quizzes & Brain Teasers!

An electron is accelerated by a potential difference of 3000V and enters a region of a uniform magnetic field. As a result the electron bends along a path with a radius of curvature of 26.0 cm.Find the magnitude of the magnetic field in [T]The speed is 32.5 Mm/s (from previous question answer)
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A 47 kg gymnast hangs vertically from a pair of parallel rings.If the ropes supporting the rings are attached to the ceiling directly above, what is the tension in each rope?
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a)Sketch a velocity-time graph to show this information.b)Use the velocity-time graph to find each of the following.The greatest velocity of the cyclist.C)The total time taken for the journey.d)The acceleration of the cyclist during the final stage.e)Find the average speed of the cyclist during the whole journey.
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the following question is about relation between the period and mass attached in spring.
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The gauge pressure in each of the four tires of an automobile is 240 kPa. If each tire has a "footprint" of 190 cm2 (area touching the ground), estimate the mass of the car. No units on answer.
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How many calories are needed to melt 50 grams of ice at 0C and convert it to liquid water at 35C?
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explains thecharacteristics of theelectric energypotential when apositive chargemoves because of anearby positivelycharged object andwhen a negativecharge movesbecause of anegatively chargedobject
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A 2650 kg truck traveling east at 39 km/h turns south and accelerates to 62 km/h A what is the magnitude of the trucks initial momentum?B what is the direction of the trucks initial momentum?C what is the magnitude of the trucks final momentum?D what is the direction of the truck final momentum?
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Un elevador lleno de personas tiene una masa de 752Kg. La tensin en el cable que sostiene al elevador es de 8950N, hacia arriba, A que razn acelerar el elevador?
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What is the magnitude of the acceleration caused by the force of kinetic friction acting on a box sliding across a level table? The coefficient of friction is 0.22
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Solve for unknown.14Y-2 = 2Y + 140
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True or False. The entire world isultimately made up of three kinds ofparticles: protons, neutrons, andelectrons.
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You plan a trip to the moon. You will need to leave the earth with enough speed to make it to the moon. The following is important information that will help you:Mass of earth=5.9742*10^24kg,Mass of the moon=7.36*10^22kg,G=6.67428*10^-11 N-m^2/kg^2,Radius of earth=6.3781*10^6 meter.Radius of the moon=1.7374*10^6 meter.Distance from earth to moon=3.844*10^8 meter.1) So, on you first attempt you leave the surface of the earth at v=5054m/s. How far from the center of the earth will you get?
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If you take an aluminum can and crush it, how does the density of the metal in the can compare before and after the change?
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A 1150 kg car is on a 8.70 hill.Using X-Y axes tilted down theplane, what is the x-componentof the weight?(Unit = N)Enter
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Lifting an elevator 12 m requires 70.0 kj. If doing so takes 16.5 s, what is the average power of the elevator during the process?
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I just need to know what is the easiest way to understand physics
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Need help on number 5. Got the answer but dont know how to use the formulas. I need the formulas very simplified as possible
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I sent a picture. If I need to send it again let me know.
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A woman exerts 100 N of force to lift a laundry basket weighing 75 N.7 Describe themotion of the basket.
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A particle with positive charge q = 3 C is at a distance of 1.5 cm from a long vertical wire that carries a current I = 5 A. The particle is traveling with a speed v = 1000 m/s perpendicular to the wire and is moving away from the wire. What are the magnitude and direction of the force on the particle?Group of answer choices1.0 x 10-8 N radially away from the wire1.0 x 10-8 N radially towards the wire2.0 x 10-8 N parallel to, but in the opposite direction of the current flow2.0 x 10-7 N parallel to, and in the direction of the current flow2.0 x 10-8 N radially away from the wire
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What is the kinetic energy of a car with a mass of 1,532 kg if its traveling at 10.6m/s? Submit your answer in exponential form.
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how do we do these questions can you help me
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A parked police car takes off after a suspect and reaches 81.0 km/h East in 8.05 seconds. What is the average acceleration (m/s2) of the car?
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