What is the focal length of the lens if sunlight is focused
A convex lens is held over a piece of paper outdoors on a sunny day. When the paper is held 29 below the lens, the sunlight is focused on the paper and the paper ignites. What is the focal length of the lens?
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You shoot a 58-g pebble straight up with a catapult whose spring constant is 310 N/m. The catapult is initially stretched by 0.20 m. How high above the starting point does the pebble fly? Ignore air.
A 40 kg barrel is rolled up a 10 meter long ramp to a height of 5 meters. how much does the barrel weigh? how much work was done? if the person exerted an effort force of 250 newtons to roll the barrel along the ramp, what is the efficiency of the
Two small objects of equal weight are attached to the ends of a thin weightless bar that spins about an axis perpendicular to the bar at its center. Each mass is a distance d from the axis of rotation. The system spins at a rate so that its kineti
A box of mass 29.9 kg is subject to a horizontal applied force of 378 N, and it accelerates to the right at 10.7 m/s2. What is the net x-direction force on the box?
When the paper is held 29 below the lens, the sunlight is focused on the paper and the paper ignites. What is the focal length of the lens?
For the L you obtain from (a), nd how long it takes to transmit the le. Assume that a total of 66 bytes of transport, network, and data link layer header are added to each segment before the resulting packet is sent out over a 155 Mbps li
Discuss the continuation of the needs assessment process of Bank of America customer service call center.
If a person can jump a maximum horizontal distance (by using a 45° projection angle) of 2.2 m on Earth, what would be his maximum range on the Moon, where the free-fall acceleration is g/6 and g = 9.80 m/s2?
How can FADH2 convert into FAD in vitro? Through what kind of biochemistry reaction and enzyme? I know that FADH2 can change into FAD when there is O2, but this process is said to be slow. And I am afraidthat O2 can oxidize fatty&
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