According to the lecture, entrepreneurs are considered agents of change because they:

The defeat of the Spanish Armada is the beginning of a shift in power between

The Thirty Years’ War broke out in 1618, as a civil war between Catholics and Protestants in:

True or false: although the vowel before -ns in present participles nominative singular is always long, the vowel always shortens before the -nt- in the base (e.g. laudāns > laudantis).

For the following sentences, use the dropdown menu to select the correct form of the dative of the agent: Remember, unlike the ablative of agent, no preposition is needed for this form! The forces must be captured by Caesar: cōpiae capiendae [Caesari] sunt. The girls must be heard by the people: puellae audiendae [populo] sunt. The words will need to be spoken by the senators: verba dicenda [senatoribus] erunt. The body had to be brought by his brother: corpus agendum [fratri] eius erat. Hope has to be sought by all: spēs petenda [omnibus] est. The fathers had to be warned by me: patrēs monendi [mihi] erant.

The pin-connected structure is subjected to a load P=238 N as shown. Inclined member (1) is connected to rigid member ABC. Determine the magnitude of the resultant force at pin A.

The bell crank shown is supported by a single shear pin connection at B and a roller support at C. An external load of P = 2,250 lb at an angle of θ = 53° acts on the bell crank at A. The pin at B has a diameter of d = 1.125 in., and the ultimate shear strength of the pin material is σU = 58,000 psi. Use dimensions of a = 12.0 in. and b = 6.0 in.What is the factor of safety of pin B with respect to its ultimate shear strength?

A load of P = 775 lb is applied to beam ABC. Bar (1) is made of aluminum [E = 10,300 ksi] and has a circular cross section with a diameter of 1.07 in. Determine the magnitude of the change in length of bar (1) due to the load. Let a = 30 in., b = 14 in., and c = 8 in.

Rigid bar ABC is supported by pin-connected axial member (1) and by a pin connection at C as shown. A 6,300-lb concentrated load is applied to the rigid bar at A. Member (1) is a 3.25-in. wide by 1.50-in. thick rectangular bar made of steel with a yield strength of σY = 33.3 ksi. The pin at C has an ultimate shear strength of τult = 60 ksi. Determine the factor of safety in member (1) with respect to its yield strength.

An axial member consisting of two polymer bars is supported at C as shown. Bar (1) has a cross-sectional area of 675 mm2 and an elastic modulus of 28 GPa. Bar (2) has a cross-sectional area of 1,540 mm2 and an elastic modulus of 17 GPa. Determine the deflection of point A relative to support C.