An airplane flies at 100km/h in still air. If it flies into a 10 km/h headwind, its groundspeed is

A) 100 km/h

B) 110 km/h

C) 120 km/h

D) 90 KM/h

Explain why a soda can feel cold when you take it out of the refrigerator.

A 76 kg pilot at an airshow performs a loop de loop with his plane. at the bottom of the 52-m radius loop, the plane is moving 48 m/s. determine the normal force acting upon the pilot.

If you get married in 2019, and then in the future 28 years have past what would your age be. Also when you get married in 2019 the age is 18

6. A bus travels 280 km south along a straight path with an average velocity of 88 km/h to the south. The bus stops for 24 min, then it travels 210 km south with an average velocity of 75 km/h to the south. a. How long does the total trip last? b.

the following is the most reasonable weight in units of newtons for an average adult? 120 N 27 N 1000 N 603 N

Light from the sun travels through space to Earth's atmosphere. Which will light waves do when they move from empty space into matter made up of different gases? A. move at the same speed B. move faster as they transmit C. slow down and refract D.

A 12.5 kg box sliding on a frictionless flat surface tuns into a fixed spring which compresses at a distance x = 14.1 cm. the spring constant is 94.5 kN/m Find the initial speed of the box

An earth scientist who studies hydrosphere

In 1991 four English teenagers built an eletric car that could attain a speed of 30.0m/s. Suppose it takes 8.0s for this car to accelerate from 18.0m/s to 30.0m/s. What is the magnitude of the car's acceleration?

A capacitor with a capacitance of 490 μf is charged to a voltage of 260 v. then a wire is connected between the plates. how many joules of thermal energy are produced as the capacitor