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a shopper in a supermarket pushes a loaded cart with a horizontal force of 400N. the cart has a mass of 20kg. a) how far will it move in 3 seconds, starting from rest? (ignore friction) b) how far will it move in 3 seconds, if the shopper places his 100N baby in the cart before he begins to push it with the same 400N force?
A sample of uniform material weighs 400N in air, and 250N when immersed in an oil of density p=800KG/N^3. a.what is the volume of the sample? b.what is the density of the sample material?
A rigid tank contains an ideal gas at 40'C that is being stirred by a paddle wheel. The paddle wheel does 200 kJ of work on the ideal gas. It is observed that the temperature of the ideal gas remains constant during this process as a result of heat transfer between the system and the surroundings at 30°C. Determine the entropy change of the ideal gas. Heat Ideal gas 40°C 30°C The entropy change of the ideal gas is JK
A sled and its passengers have a total weight of 400N. Once the sled starts to move, how much force would be required to overcome the friction between the wooden sled and the wet snow. The coefficient if static friction between the wood and the snow is 0.2 and the coefficient of kinetic friction is 0.13.
Athlete attempting to hit a golf ball off a tee. Athlete applies 400N of force to a 0.25kg golf ball. The force is applied at an angle of 10 degrees above the horizontal. What is the net force on the golf ball, and what is the resultant launch angle?
What is the...
Net Force:
F-x Net:
F-y Net:
F Net:
200N 400N 45° 2.
Physics with Cal 2
A copper wire has radius of 0.2 cm and length of 400n m, what is the resistance of this copper wire? When a 200-V potential difference is applied over the wire, what is the current through the wire and what is the electric power? If the current is uniformly distributed, what is the current density? If the drift speed is 10 m/s, what is the number density of electrons in the wire? (Given copper's resistivity as...
Please ignore my answer, it is incorrect
2. The 400N child now wants to seesaw alone. To do so, she moves the plank so that its center of weight is no longer directly above the fulcrum. She finds she will be balanced when she is 0.75m to the left of the fulcrum and the center of the plank is 0.50m to the right of the fulcrum. What is the weight of the plank? a. 150N 267N b. C. 300N d....
58) If V 40 V and the battery is ideal, what is the potential difference across R1 in the figure? R,-10 ww R2 20 0 R,-20 R4 30
Calculate the solubility of p-dibromobenzene in benzene at 20°C and 40°C assuming ideal solutions are formed. The enthalpy of fusion of p-dibromobenzene is 13.22 kJ/mol and its melting point is 86.9 °C. Ideal sulubility