A boat is being pulled up the middle of a canal at a steady speed by two horses, one on each side of the canal. The ropes tying the boat to the horses each make an angle of 30° with the lengthwise direction of the canal. If the force exerted on each horse by its rope is 2000 N, how much force would a single rope need to accomplish the same effect as the two forces added together?

The surface of a lake has an area of 1.67 x 108 ft2. What is the area of the lake in m2?

When considering the stability of IQ, which of the following statements is MOST likely to be true?

Which example best illustrates the insecure-avoidant attachment style in infants in unfamiliar settings?

Which of the following illustrates convergent thinking?

An in-ground swimming pool has the dimensions shown in the drawing. It is filled with water to a uniform depth of 3 m. What is the total force exerted on the bottom of the swimming pool? (Patmospheric = 1.013×105 Pa)

An object is moving at a constant velocity. All but one of the following statements could be true. Which one cannot be true?

Naomi is good at numbers and she usually performs well on math tests. However, right before her final math exam, her teacher tells her not to expect much because women usually do poorly on math tests. It turns out Naomi really gets a low score on that test. This most likely demonstrates _______.

Holly puts a box into the trunk of her car. Later, she drives around an unbanked curve that has a radius of 48 m. The speed of the car on the curve is 16 m/s, but the box remains stationary relative to the floor of the trunk. Determine the minimum coefficient of static friction for the box on the floor of the trunk.

A race car starts from rest and accelerates on the Daytona track. Each tire has a radius of 0.3 m and rolls without slipping. At 152 m, the angular speed is 355 rad/s. Find the linear speed of the race car at that distance.