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A jet plane has a takeoff speed of vto = 74 m/s and can move along the runway at an average acceleration of 2.0 m/s2. If the length of the runway is 2.1 km, will the plane be able to use this runway safely?
A stone is thrown vertically upward at a speed of 28.40 m/s at time t=0. A second stone is thrown upward with the same speed 2.570 seconds later. At what height do the two stones pass each other
A 202 kg cart runs into the rear end of a 103 kg cart that is stationary. what is the speed of the cart before collision
When placed in a fluid with an unknown density, a sphere with a radius of 8.50 cm floats with 2/3 of its volume submerged. What is the density of the fluid
A flight attendant pulls her 69N flight bag a distance of 246m along a level airport floor at a constant velocity. The force she exerts is 37N at an angle of 58° above the horizontal. Find the coefficient of kinetic friction between flight bag and..
A child in a boat throws a 6.0 kg package out horizontally with a speed of 10m/s. Compute the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is 29kg and that of the boat is 55.0 kg. Overlook water ..
You exert a force as shown in the diagram to push a large crate of books (about 1 m high, m = 45.0 kg) across a rough floor at constant speed v = 0.650 m/s. Find the rate at which work is done by you
After the interaction, the particles (which can't be distinguished) are observed moving at angles 55.3° and 34.7°, both angles being measured with respect to the original direction of motion. Illustrate what are the final speeds of the particles?..
An airtight box having a lid with an area of 14.0in2 ( 90.32cm2 ) is partially evacuated. what is the air pressure in the box
If the wire is heated to 40.0°C while the 7.0-V potential difference is maintained, what is the resulting current in the wire
A roller coaster is traveling at 5 m/s at the top of a hill 40 m above the ground. What is the speed of the roller coaster when it is 15 m above the ground
A hot-air balloon is ascending at the rate of 11 m/s and is 68 m above the ground as a package is dropped over the side. How long does it take to reach the ground.
As a summer intern for a microscope company, you are designing a compound microscope for a client that provides you with the following information. determine the barrel length needed for the microscope
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