A wave has a frequency of 100 Hz and a wave speed of 4.0 m/s. What is the wavelength?

A. 25 m

B. 0.40 m

C. 0.04 m

D. 400 m

How long will it take a 50w heater to melt 100g of ice at 0°c?

A girl on a bike is moving at a speed of 1.40 m/s at the start of a 2.45 m high and 12.4 m long incline. The total mass is 60.0 kg, air resistance and rolling resistance can be modeled as a constant friction force of 41.

Pyruvatic acids are formed during which stage of cellular respiration? Glycolysis Photosynthesis The electron transport chain The Krebs cycle

What is the half life of an element of 1/8 of a sample remains after 12 years?

A 20-ton truck collides with a 1500-lb car and causes a lot of damage to the car. Since a lot of damage is done on the car : Select one: a. the force on the truck is smaller than the force on the car. b.

Which drum would make a sound that fades away faster - one that makes a loud sound or one that makes a more mellow sound Why?

Which of the following is NOT a way to increase the solubility of a solid in water? A. crushing the solid B. shaking the mixture of solid and water C. raising the temperature of the water D. letting the mixture stand still a long time

Which of the following is true about cells? A. Cells have specialized components that perform different, specific functions. B. A cell's components are all identical and perform the same function. C.

How much heat is contained in 100 kg of water at 60.0 °C?

Which of the following statements is the best definition of weather? Weather is the current conditions in the atmosphere. Weather is the usual conditions in the atmosphere. Weather is the average conditions in the atmosphere.