Master Physics with Fun Quizzes & Brain Teasers!

A block of 6 kg is pushed across a table by a force P. The block has an acceleration of 4.0m/s^2.A. What is the magnitude and direction of the net force acting upon the block?B. If the magnitude of P is 30n , what is the magnitude and direction of the friction force acting upon the block?
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A car has a velocity of 49.29 m/s. It then accelerates at a uniform rate of -4.00 m/s for the next 5.40 seconds. what distance does it travel?
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Which of the following are correct statements?Check all that apply.A.Atoms are the basic units of matter.B.The atomic number is the number of electrons an atom has.C.The number of neutrons an atom has defines what kind of element it is.D.The number of protons in an atom's nucleus defines what kind of atom it is.
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If a problem says an object comes toa stop, that means:) x = 0C) v;= 0B) a = 0D) V = 0
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Need help on number 5. Super complex. Have had some tutors that cant answer.
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How much work does gravity do on your 63.5 kg teacher when she trips and falls from a height of 1.55 m?
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Can you help me determine the mass of the mystery object its #15The maximum speed is 40 m/s.
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A 1.4-cm tall object is 3.2 cm in front of a converging lens with a focal length of 1.8 cm. Use the mirror-thin lens equation to find the image distance and image height.
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The apparent weight of a passenger in an elevator is greater than his true weight. Which one of the following is TRUE?a)The elevator is moving at a constant speed downward.b)The elevator is speeding as it moves upward.c)The elevator is moving at a constant speed upward.d)The elevator is slowing down as it moves upward.
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I am having problems with this question I was wondering if I can have help with it
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________ causes cast of gases to clump together to begin forming new stars and planets.
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An object moving at a constant velocity of 5.4 m/s travels for 12 s. How far will it move during that time?x = xo + vo t + a t 2 g = 9.8 m/s2 (downward)
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Question 8 of 10Which description best matches the image below of a hand that is using theright-hand palm rule?ton moying left in a magnetic field that points up will
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A car starts from an acceleration of 18 m/s^2. Find the time needed for the car to reach 33 m/s
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find three consecutive even integers such that two times the second equals the sum of the first and third
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how does changing the voltage of a battery influences the magnetic field?
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How much energy is required to raise the temperature of 8.56 kg of water from 33.52oC to 61.13oC? The specific heat of water in this state is 4186 J/kg-oC.
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QUESTION 27If the woman in question 25 suddenly stops applying a horizontal force to the box, then the box will:immediately come to a stop.continue moving at a constant speed for a while and then slow to a stop.O immediately start slowing to a stop.continue at a constant speed.increase its speed for a while and then start slowing to a stop.
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An object dropped from rest, what will its velocity be after 30 s?
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A woman is driving at a velocity of 12.74 m/s at an angle of 57 What is the Ycomponent of her velocity?
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While studying stalactites in a cave, Hannah dropped her lantern down a hole 35m deep. How fastwas it traveling when it hit the ground? Use energy equations.
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Gabrielle and Pierre are trying to move a 52 kg box by pushing it across the floor. Gabrielle is pushing with a force of 40 N [east], while Pierre is pushing with a force of 32 N [west]. There is also a friction force of 3 N [west] on the box. Assume the box travels 4 m [east].D. Remember that net force indicates an acceleration. In which direction is the box accelerating (and hence, moving)?E. Determine the work Gabrielle exerts on the box. Considering the direction the box is going, is the work positive or negative?F. Determine the work Pierre exerts on the box. Considering the direction the box is going, is the work positive or negative?G. Determine the work friction is doing on the box. Considering the direction the box is going, is the work positive or negative?H. Add together Gabrielles and Pierres work, and the work from the force of friction. If any of the amounts of work were negative, the amount becomes a negative number in the summation. I. What is the net work being done on the box in the horizontal direction?J. What is the net work being done on the box in the vertical direction?
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What "new theory" says:all matter and energy in the universe is composed of incredibly tiny vibrating strings.1-The big bang theory2-The superstring theory3-The Theory of everything4-The unified theory
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A heating element draws 15 A at 220 V. How much time will it take to evaporate 3 kg of water at 100oC using the element? Lv = 2.25x106 J/kgAnswer Choices34.1 min55.1 min15.6 min20.0 min
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