Over a million students use our free study notes to help them with their homework
Because the ball is stationary, the sum of the forces acting on it must be equal to 0. We can split the ball's weight into two components: perpendicular and parallel to the slope.W(para)=2gsin60W(perp)=2g...
Answer: escape velocity v = sqrt[(2GM)/r], where G is the gravitational constant.Reasoning: Conservation of energy means that the total initial energy must be equal to the total final energy, ...
The force exerted on a charged particle q moving with a velocity v through an electric and magnetic field, E and B respectively. F=qE+qvxB. We usually care mostly about the magnetic part. It is also worth...
The first harmonic has wavelength λ1 = 4L and the next harmonic has wavelength λ2 = 4L/3<...
Conduction is the transfer of heat caused by the collision of particles inside a substance and between substances. In order to reduce heat loss, some thermos flasks have a vacuum between ...
1
2
3
4
5
→
Internet Safety
Payment Security
Cyber
Essentials
Comprehensive K-12 personalized learning
Immersive learning for 25 languages
Trusted tutors for 300 subjects
35,000 worksheets, games, and lesson plans
Adaptive learning for English vocabulary
Fast and accurate language certification
Essential reference for synonyms and antonyms
Comprehensive resource for word definitions and usage
Spanish-English dictionary, translator, and learning resources
French-English dictionary, translator, and learning
Diccionario ingles-espanol, traductor y sitio de apremdizaje
Fun educational games for kids
