What force keeps you from falling through your bed when you lie on it to sleep

A regulation basketball has a 22 cm di- ameter and may be approximated as a thin spherical shell. How long will it take a basketball starting from rest to roll without slipping 1.1 m down an incline that makes an angle of 49.

Water at the Antarctica usually exits as ice, making it very difficult to use the water or conduct experiment requiring the water to be in liquid state. A coffee addicted physicist stationed at a research base requires about 0.

An 800-W heater raises the temperature of 4 kg of soup by 40 °C in 13 minutes. (a) How much energy is transferred to the soup if there is no energy loss to the surroundings?

A cyclist averages 50 m/s. If the course is 80,000m long. How many seconds will it take to complete the course?

Calculate the total displacement of a mouse walking along a ruler, if it begins at the x=5cm, and then does the following: It walks to x=12cm It then walks a displacement of - 8cm Lastly, it walks to the location x=7cm

Your heart pumps 80 g of blood with each beat. The blood starts from rest and reaches a speed of 0.60 m/s in the aorta. If each beat takes 0.16 s, the average force exerted on the blood is a. 3.0" 102 N b. 0.22 N c. 0.16 N d. 0.30 N e. 0.98 N

What is the formula for calculating the mass when i have the number of volume and density

What is the name for potential difference that causes current to flow? (A) electric charge (B) static discharge (C) voltage

How is a herpetologist and a ecologist similar

In an oscillating lc circuit, when 75.0% of the total energy is stored in the inductor's magnetic field, (a) what multiple of the maximum charge is on the capacitor and (b) what multiple of the maximum current is in the inductor?