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• #### A 20 N block is being pushed across a horizontal table by an 18 N force....

A 20 N block is being pushed across a horizontal table by an 18 N force. If the coefficient of kinetic friction between the block and the table is 0.4, find the acceleration of the block (A.) 0.5 m/s B1.0 m/s (C) 5 m/s (D.) 7.5 m/s (E.) 9 m/s If all the forces acting on an object are balanced...

• #### Problem 47.- A dc motor develops 55 N-m of torque at a speed of 600 rad/s...

Problem 47.- A dc motor develops 55 N-m of torque at a speed of 600 rad/s when12 volts are applied. It stalls out at this voltage with 100 N-m of torque. If the inertiaand damping of the armature are 7 kg-m^2 and 3 N-m-s/rad, respectively, find the transferfunction G(s) = θL(s)/Ea (s) of this motor, if it drives an inertia...

• #### A 5.38 kg block is placed on top of a 9.24 kg block. A horizontal force...

A 5.38 kg block is placed on top of a 9.24 kg block. A horizontal force of F = 70.6 N is applied to the 9.24 kg block and the 5.38 kg block is tied to the wall. The coefficient of kinetic friction between all moving surfaces is 0.28. There is friction both between the masses and between the 9.24...

• #### draw the product of the following reaction sequence

Draw the product of the following reaction sequence. Cl 1. Mg(s), THF 2. CO2(s) 3. H3O+ 3rd attempt Part 1 (1 point) Draw the product. 2D Draw the product of the following reaction sequence. Cl 1. Mg(s), THF 2. CO2(s) 3. H3O+ 3rd attempt Part 1 (1 point) Draw the product. 2D

• #### Problem: Find the matrix which represents in standard coordinates the transformation S:R2R2 which...

Problem: Find the matrix which represents in standard coordinates the transformation S:R2R2 which shears parallel to the line L = al, where a (5,4) such that a gets transformed into a + s, with s (-12,15) Answer Check Problem: Find the matrix which represents in standard coordinates the transformation S:R2R2 which shears parallel to the line L = al, where...

• #### Calculate the standard enthalpy of formation of liquid water (H2O) using the following thermochemical information: 2...

Calculate the standard enthalpy of formation of liquid water (H2O) using the following thermochemical information: 2 B2O3(s) 4 B(s) + 3 O2(g) H = +2509.1 kJ B2O3(s) + 3 H2O(l) B2H6(g) + 3 O2(g) H = +2147.5 kJ 2 B(s) + 3 H2(g) B2H6(g) H = +35.4 kJ H = ______ kJ

• #### A train started from rest and moved with constant acceleration. At one time it was traveling...

A train started from rest and moved with constant acceleration. At one time it was traveling 30 m/s, and 170 m farther on it was traveling 49 m/s. Calculate (a) the acceleration, (b) the time required to travel the 170 m mentioned, (c) the time required to attain the speed of 30 m/s, and (d) the distance moved from rest...

• #### Mike is in the back of a truck moving due east at a constant velocity of...

Mike is in the back of a truck moving due east at a constant velocity of 20 m/s relative to the ground, if Mike throws an apple straight out the back of the truck (west) at a velocity of 15 m/s relative to the truck, what is the velocity of the apple relative to the ground?    m/s What is...

• #### The characteristic feature of metals is the metallic bonding that arises as a result of extended...

The characteristic feature of metals is the metallic bonding that arises as a result of extended overlap of atomic orbitals to produce orbital bands. Metals with electrons in d and s atomic orbitals tend to form combined s/d bands. How many electrons from its highest energy d and s atomic orbitals does each atom of iron contribute to the combined...

• #### Constants 2.00 10 20 o4 5) A car's velociły as a function of time is given...

Constants 2.00 10 20 o4 5) A car's velociły as a function of time is given by v.(t)-a Bt where a 3.00 m/s and 0.100 m/s V Correct Part E Draw accurate ar-tgraph for the car's motion between t-Oand t = 5.00 s No elements selected 2.00 150 100 0.50 10 0 40 S t(o)