Master Physics with Fun Quizzes & Brain Teasers!

PLS help me with this its due soon!! Devon ran a race on a flat track. He did not keep a constant speed during the race. The diagram below shows how fast he was running at different points on the track.At which point on the track did Devon have the most energy of motion?
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How do you determine how much kinetic energy an object hasA: by finding mass and speedB: by finding height and widthC: by finding its position and formD: by finding its speed and direction
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A 10 kg object encounters 2 forces: 10 N to the left and 14 N to the right. What is the acceleration of the object?A. 0.8 m/s^2B. 0.4 m/s^2C. 4 m/s^2D. 8 m/s^2
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An ice cream truck is going 25m/s to the East. It accelerates to 45m/s in the same direction over 5s. What is its acceleration? Show your work and include the correct units with your answer.
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Find events in the five technology areas(communication,manufacturing,transportation,construction,and biotechnology
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A plane that is 2000m in the air of the potential energy of the plane is 86000 J what is the mass of the plane
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Two objects gravitationally attract with a force of 100 N. If the mass of one object is doubled and the mass of the other object.is tripled,what is the new gravitational force?
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why so much space in the solar system?
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The piston is compressed with gas in two ways - once isothermal, the second adiabatic. In which case is the final pressure higher? Why?
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What happens if 5 Protons combine with 4 neutrons.
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Why does the moon appear to take on a colored hue during an eclipse?.
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Brianna pushes a 20 kg box with a force of 50N to achieve an acceleration of 2.5 m/s/s. In order to push a 30 kg box at the same acceleration, how much force will Brianna need to apply?
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Which two measuring devices would most likely be used to measure the speed ofwater in a stream?
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A toy car rolls down a ramp, even absence of non-conservative forces, it'snot possible for all of it's potential energy to convert into kinetic energy.What is moving, within the car-system itself, that is also gaining energyin order for this part of the car to move? How is this responsible forconsuming some of the mechanical energy?
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A turtle accelerates from a stop at 3m/s/s to the South for 8s. What is the turtles final velocity? Show your work and include the correct units.
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A baseball is tossed straight up in the air. The table shows the height and velocity of the ball at different times as it moves through the air.Time in Air (seconds) Height of Ball Above Ground (feet) Velocity(feet per second)0.00 4 320.25 11 240.50 16 160.75 19 81.00 20 01.25 19 81.50 16 161.75 11 242.00 4 32Which statement is true about the kinetic energy of the baseball at the moment it reaches its maximum height?The baseball's kinetic energy is less than zero at that instant.At that moment, all the baseball's kinetic energy has been lost as heat to the atmosphere.The baseball's kinetic energy is greater than zero at that instant. At that moment, all the baseball's kinetic energy has been converted to potential energy. (correct answer)
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Two small, identical metal balls with charges 7.0 C and 14.0 C are held in place 1.9 m apart. In an experiment, they are connected for a short time by a conducting wire.(a) What will be the charge on each ball after this experiment?1. new charge on 7.0 C ball = ? C2. ew charge on 14.0 C ball = ? C(b) By what factor will the magnitude of the electrostatic force on either ball change after this experiment is performed? = ?
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Which of the following is not a measurement?0.50 ppm12065 mph24C
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Parents have a major role in observing how young children grow at home. Create and discuss simple developmental monitoring tips a parent can use at home before consulting a health professionals
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Help me pls as soon as possible pls
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A man with a mass of 60 kg rides a bike with a mass of 13 kg. What is the force needed to accelerate the bike at 0.90 m/s2?A. 65.7B.657C.75.6D.756
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14. Why is it cooler to wear a white shirt than a black shirt on a hot, sunny day?
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3) Calculate the kinetic energy of a 7 kg mass traveling at a velocity of 4 m/sec.FormulaWork with UnitsAnswer with Units
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10. 1. Why is Newton's law of gravitation called universal law ?
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