Master Physics with Fun Quizzes & Brain Teasers!

A T-shirt cannon can shoot a 0.085 kg T-shirt at nearly 30 m/s. The T-shirt cannon has a mass of 33 kg. If the initial net momentum is at 0 then what is the velocity of the recoil of the T-shirt cannon?
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A crane does 244,292 J of work in raising a 1,248 kg load straight up. How high was the load lifted in meters?I can't find anything online about getting distance from only having work and mass, even just a formula would help greatly.
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What does it mean when someone says that radio waves can be modulated?
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A 10.0 kg monkey swings on a vine from a point which is 40.0m above the junglefloor to a point which is 15.0m above the floor. a. How much has the monkeys speedincreased when he reaches the 15.0m point? b. If the monkey was moving at 2.00 m/s initially, what will be his speed at the 15.0m point?
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A 104.328-kg baserunner slides into home base. He starts his slide moving at 8.451 m/s and 6.596 m from home base; when he crosses home plate he is moving at 2.322 m/s. What is the coefficient of kinetic friction between the baserunner and the ground?
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11. Velocity-time graph for the motion of an object in a straight path is a straight line parallel to the time axis(a) Identify the nature of motion of the body(b) Find the acceleration of the body(c) Draw the shape of distance time graph for this type of motion
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When the stomes are unloaded into water, the water level falls because the volume of the water displaced by stones in water will be less than the volume of water displaced when stones are in the boat. ithink yes
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one of the following is constant during change of state?
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draw a force diagram for each photo and mention which law of newton you can apply to each image.
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Laura and Celia are identical twins. They were adopted at birth by different families and raised in different environments. However, there are a lot of behavioral similarities between them. In the context of developmental psychology, which best explains this phenomenon?
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When you get to the snow, you grab a handful to take back to the beach. However, by the time you get there, the snow has disappeared, and you are left with water dripping down your arm.
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1. Gwen exerts a 16 N horizontal force as she pulls a 32N sled across a cement2. A student drops a ball from a window 7 m above the sidewalk. How fast is it moving when it hits the sidewalk?3. A hockey puck has a coeffient of kinetic frictin of uk = 0.30 , if the puck feels a normal force (Fn) of 12 N, what is frictional force that acts on the puck?.
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Explain how the fixed points are used when calibrating a thermometer.
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What is the coordination number of each atom in Silicon?
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One acre is equal to 43560ft.How much is it in m?
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a Transformer has 50 turns on it primary and 100 turns on secondary if the primary is connected to a 120v source what is the age out put of the secondary
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What is the answer? please answer step by step If a roller coaster starts with no initial velocity at a height of 2m , what would be the velocity of the coaster at the bottom of the track?
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Will the plier with longer handles or shorter handles exert the most force? Use the principle of moments in your explanation
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Farha makes the graphic organizer shown to review the characteristics of transistors. A Venn diagram with two circles. The left circle is labeled P N P Transistor. The right circle is labeled N P N Transistor. An X is inside the overlap of the two circles. Which statement belongs in the region marked X?
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A large object is to be pulled along using two ropes that are attached at the same point. The angle between the two ropes is 30. The force exerted in one rope is 500N and in the other 600N. Calculate the resultant force acting on the object.Show your working.
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A particle of weight W is placed on a rough plane which is inclined at an angle y to the horizontal. The coefficient of friction between the particle and the plane is where < tan . Show that the magnitude of the least horizontal force tan - W 9 F needed to maintain the particle in equilibrium is F=;[tex] \frac{tan \beta - \alpha }{?} w \div 1 + \beta tan \alpha [/tex]
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A sample of 2 mol of diatomic gas is measured to have a temperature of 323K. If the mass of the gas is 0.032 kg, what is the approximate average speedof the molecules in the gas? (Recall that the equation for kinetic energy dueto translation in a gas is KEtranslational = 1m = 3nRT, and R = 8.31 J/(mol-K).)22O A. 652m/sOB. 621 m/sOC. 709 m/sOD. 681 m/s
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What is meant by the term weight of an object? A. the gravitational field acting on the object B. the gravitational force acting on the object C. the mass of the object multiplied by gravity D. the object's mass multiplied by its acceleration.
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A combustion reaction is represented by __________________.A. AB + C yields CB + AB. A + B yields ABC. Fuel + oxygen yields carbon dioxide + waterD. AB yields A + B
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