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How much work does a 50.0kg person do in walking up one flight of stairs, equivalent to 3.0m?
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According to Newtons law of universal gravitation, in which of the following situations does the gravitational attraction between two bodies always increase
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How much work is done in pushing a 10kg box, 2.0m to the rightwith a force of 20.0N?
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A 55-kg box rests on a horizontal surface. The coefficient of static friction between the box and the surface is 0.30. A 140-N force is applied to the box. What is the frictional force on the box?
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You apply a force of 500 N to 150 N/m. how much does it stretch? Show the equation you are using, plus the values into the equation, and show the final answer with the units. 3 significant figures.
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When a golf club hits a 0.0459 kg ball at rest, it exerts a 2380 N force for 0.00100 s. What is the speed of the ball afterwards? (Unit = m/s)
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How is energy transferred whenhitting a nail?
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What energy store is in the hammerBEFORE it hits the nail?
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What energy store is in the humanBEFORE he/she lifts the hammer?
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Magnification of lens is 1. What does it mean?
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What energy store is in the torchBEFORE it gets switched on?
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How can force-time and force-displacement graphs be used to find the impulse or work done?A. Area under force-time graph & Area under force-displacement graphB. Area under force-displacement graph & Area under force-time graphC. Gradient of force-time graph & Gradient of force-displacement graphD. Gradient of force-displacement graph & Gradient of force-time graph
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How is energy transferred when thetorch is switched on?
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A 30 kg child is in an elevator accelerating down at a rate of -5 m/s2.a. Calculate the force of gravity on the child.
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take a picture of an object in your house, describe theenergy stores and transfers that happen with it. You can be as imaginative as you wishwith the object (choose something unusual), but the stores you identify and transfersthat happen must be real.pls give me ideas of what to take a photo of for this I'm really stuck :(
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7. An object with a weight of 19.6 N moves with a constant velocity of 20.0 m/s. A netforce of 6.00 N is applied to the object in the direction of its motion for 4.00 seconds.What is the final momentum of the object?
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Lenzs Law allows us to find _______.the direction of the induced current.the magnitude of the induced emf.the direction of the induced emf.the magnitude of the induced current.
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9) Suppose it takes a plane 5 hours to travel from Philadelphia to San Francisco. Ittravels at an average speed of 500 miles per hour. What is the distance betweenthe two cities?
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3. A 70 kg person climbs a 6 m ladder. How much work is required by the person?
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A spring has a constant of 875 N/m. What hanging mass will cause this spring to stretch 4.5 m?
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Jeremy walked at an average rate of speed of 5 km/h. how far had Jeremy walked in 15 minutes?
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10)A car is moving from rest and attained a velocity of 80 m/s. Calculate theacceleration of the car after 5 s?
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The impulse given to a body of mass 1.5 kg, is 6.0 kg ms? If the body was initially at rest what will its resulting kinetic energy be? Give your answer in J without units.(Show Work)
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Emily roller skates with a constant speedof 8 miles per hour. How far can she travelin 3 hours? D = SxT
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