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Supposed to Children's push horizontally, but exactly opposite directions, on a third child and wagon. The first child exhort exerts a force of 75.0 n, the second a force of 95.0 n, friction is 12.0 n, and the mass of the third child plus wagon is 21.0 kg. What is the system of interest if the acceleration of the child in the wagon is to be calculated? Check all that apply. The child in the wagon? The child outside the wagon? The wagon? Calculate the acceleration. What would the acceleration be if friction is 20.0?
An ideal gas is allowed to expand slowly at constant temperature to twice its original volume. Through the expansion, 200 kJ of heat is absorbed. How much work does the gas do during the expansion? What is the change in the gas's thermal energy durin..
Calculate the linear acceleration of a car, the 0.320 m radius tires of which have an angular acceleration of 9.0 rad/s2. Assume no slippage.
Derive an expression or the total magnitude of the acceleration of a point in a rotation body in terms of r t and theta.
Discuss any ethical or practical considerations that might arise from this application of the concept. These might include (but are not limited to) environmental impact, safety concerns, or issues of effectiveness.
how fast do you need to hit a block that is resting on a surface with 1n friction force with a 0.5kg hammer in order to
You spot a plane that is 1.6 km north, 2.71 km east, and at an altitude 4.68 km above your position. How far from you is the plane? At what angle from due north (in the horizontal plane) are you looking?
Determine the isentropic stagnation temperature and pressure of the steam by Assuming steam to be an ideal gas.
Besides the traditional colorimetric acid/base indicators, there is another class that doesn't use color, the olfactory acid-base indicators! These compounds smell or don't smell based on their pH and a lot of them are plant-derived compounds
An 85-g arrow is red from a bow whose string exerts a constant force of 105 N on the arrow over a distance of 75 cm. Illustrate what is the speed of the arrow as it leaves the bow?
A Na+ ion moves from inside a cell, where the electric potential is -68 mV, to outside the cell, Does its energy increase or decrease
The longest pipe found in most medium-size pipe organs is 6.90 m (22.6 ft ) long. What is the frequency of the note corresponding to the fundamental mode if the pipe is open at both ends?
A large trucks runs into a fly while driving at 60 mph. What is true about the forces between the truck and the fly, and the fly and the truck, determine which force is larger
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