There are six books in a stack, and each book weighs 5 N. The coefficient of static friction between the books is 0.2. With what horizontal force must one push to start sliding the top five books off the bottom one? a. 1 N c. 3 N b. 5 N d. 7 N

A light source is made to pass through a narrow slit in a window. how do you think the light rays will travel

What is the closest planet to earth that scientist think can support life?

A weightlifter lifts a 125-kg barbell straight up 1.15 m in 2.5 s. What was the power expended by the weightlifter?

Compare the kinetic energy of a 20,000-kg truck moving at 110 km/h with that of an 80-kg astronaut in orbit moving at 27,500 km/h.

A person running at 5 mph puts on a burst of speed to finish a race at 7 mph. What is the velocity

Since you've determined that the power supply is a 700W dual rail, what does that make the maximum output power?

A 2 m length of an aluminum pipe of 240 mm outer diameter and 10 mm wall thickness is used as a short column to carry a 640? centric axial load. Knowing that? = 73? P? and? = 0.

A python can detect thermal radiation from objects that differ in temperature from their environment as long as the received intensity of thermal radiation is greater than 0.60 W/m2. Your body emits a good deal of thermal radiation.

A planet has a mass of about 6.4 x 1023 kg, and its moon has a mass of about 9.6 x 1015 kg. if the magnitude of the gravitational force between the two bodies is 4.6 x 1015 n, how far apart are the planet and its moon? a. 9.4 x 106 c. 4.6 x 109 b. 2.

Is burning a nonrenewable natural gas a chemical change