Pic 2 Lesson 1 Review: "Wave Properties Steel
68
16,850
A worker is fixing a ladder at the community pool. Both the temperature of the water and the air is 68 degrees Fahrenheit. He bangs on the
aluminum ladder with his steel hammer. There is a swimmer swimming in the pool while the man works
The swimmer in the pool is making waves when he swims. Choose the sentences that describe both the swimmer's waves and the waves the
worker makes when he hammers on the ladder Choose the two that apply.
A They both transfer matter
They both transfer energy
C. They both are surface waves.
They both are transverse waves
E They both need matter to travel through

Answer: a charge of -1.0  × 10⁻⁴ c must be placed  at x = 26 m.the sign of the charge will be the same sign as the  -4.0  µc charge.======electricstatic force between two point charges  is given by    where k is coulomb's constant,  8.99×10⁹  n·m²/c², q₁ and q₂ are the point charges, and r is the distance between the two point charges.assign positive to q₁let q₁ =  6.0 µc, q₂ = -4.0  µc, q₀ represent the charge at the origin, and q₃ represent this new charge to place.the charge at the origin q₀ would experience the following force f₀₁ from q₁, with r = 6.0 m (note that 1  µc = 10⁻⁶ c)    the force from q₂    the force from q₃    the net force on the origin charge, q₀, has to be zero for no electrostatic forcehaving an equation where k and q₀ can be divided out of the equation will allow us to solve for q₃    isolating:     a charge of -1.0  × 10⁻⁴ c must be placed  at x = 26 m.the sign of the charge will be the same as the  -4.0  µc charge