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A body is dropped from rest and falls freely. Determine the position and speed of the body after 1.0, 2.0, 3.0 and 4.0 s have elapsed.
A camera is supplied with two interchangeable lenses, whose focal lengths are 41.0 and 150.0 mm. What is the height (including sign) of her image on the image sensor
What is the mass of sculpture (in kg) assume that the local acceleration due to gravity is 9.80 m/s2.
A horizontal force of 200N is applied to a 55kg cart by a child across a 10m level surface. The cart accelerates at 2m/s^2. What force of friction acts to retard the motion of the cart
Two concentric current loops lie in the same plane. The smaller loop has a radius of 3.0 cm and a current of 12 A. The bigger loop has a current of 20 A. What is the radius of the bigger loop
Many communications satellites orbit the earth in geostationary orbits. (They appear to remain in the same positions in the sky for observers on the earth's surface.) If such a satellite orbits at a height of 40,000 km, estimation the time delay in a..
Two wires are separated by 3.0 cm and each is of length 1.5 m. They repel each other with a force of 4.0 N. The current in one wire is 5.0 A. find the current in the other wire
A ball is released from the top of a cliff; it hits the ground 1.6 seconds later. Assuming the ball is a free falling object, how many meters is the cliff above the ground below
What is the spring constant of each spring if the empty car bounces up and down 1.4 times each second?
Consider two particles, each with a charge of +Q located at the opposite corners of a square of side d. What is the direction of the net electrical field at point P
You want to take a bath with the water temperature at 35°C. The water temperature is 38°C from the hot water tap and 11°C from the cold water tap. You fill tub with a total of 191kg of water. How many kilograms of water from the hot water tap do y..
A freshly prepared sample of a certain radioactive isotope has an activity of 10.0 mCi. After 4.50 h, the activity is 7.80 mCi. Find the decay constant and half-life of the isotope
If a 4 cm piece of insulation is added to the pine ceiling kpine = 0.120 J/msC kinsul = 0.042 J/msC If a 4 cm piece of insulation is added to the pine ceiling , find the interface temperature for the pine and insulation.
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