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A body of mass 4 kg is accelerated upon by a constant force, travels a distance of 5 m in the first second and a distance of 2 m in the third second. The force acting on the body is
(A) 2 N
(B) 4 N
(C) 6N
(D) 8N
A rock is thrown vertically upward from ground level at time t = 0. At t = 2.30 second it passes the top of at all tower, and 1.10 second later it reaches its maximum height. Find what is the height of the tower
tell me how you expect the intensity of light to vary as you move away from the light. tell me why you think this is
An electric car accelerates for 8.0 s by drawing energy from its300-V battery pack. During this time,1190 C of charge passes through thebattery pack. Find the minimum horsepower rating of the car.
A current of 11.4 Amp flows through an electric heater operating on 220 Volt. Determine what is the heater resistance
A 369-N, uniform, 1.11-m bar is suspended horizontally by two vertical cables at each end. What is the heaviest weight you can put on without breaking either cable
A block weighing 5.8 Newton requires a force of 3.9 Newton to push it along at constant velocity. Obtain the coefficient of friction for the surface
What is the maximum mass that the painter can have before the ladder begins to slip? (HINT: use the conditions for equilibrium.
We want to launch the package in such a way that it will never come back, and when it is very far from the asteroid it will be traveling with speed 187 m/s. We have a large and powerful spring whose stiffness is 3.0 105 N/m. Explain how much mus..
Suppose you have a mass spring system with mass 0.1kg and a spring with a spring constant 10 N/m2. Calculate the maximum acceleration of the above oscillator
When a ceiling fan rotating with an angular speed of 5.6 rad/s is turned off, What is the moment of inertia of the fan
Describe the characteristics of the pH scale. Compare and contrast acids and bases. Provide examples of some of the products that you know are basic and acidic in nature
For 10000 points, mean is 10 and standard deviation is about 6= Sqrt(770/21). how do they compare with the theoretical value
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