Which of the following is true of our current knowledge of electrons?

In a 1.25-T magnetic field directed vertically upward, a particle having a charge of magnitude 8.50 mC and initially moving northward at 4.75 km>s is deflected toward the east. (a) What is the sign of the charge of this particle. (b).

What is the difference in the motion between a positive and a negative initial velocity?

How many pennies does it cost to use your 956-W microwave for 36 minutes every day for a week if your electric company charges 9 cents per kWh?

Because stars are said to have a life cycle, we expect that they will eventually die cease to have an orbit continue to move in circular orbits create living organisim

With mechanical waves, what is moving and what stays in roughly the same place?

What is the mass in kg of a leopard in a tree if the tree branch is 36 m up and the leopard's gravitational potential energy is 29988 J?

Venus's average distance from the sun is 0.72 AU and Saturn's is 9.54 AU. Calculate the orbital velocity of Venus and Saturn around the sun. (The mass of the sun is 1.99 X 10^30 KG. an AU is 1.50 X 10^11 M.

Caleb's parent drove him to a swim meet 208 km away. It took them 2 hours, which included a 15-minute break to refuel. What was their average driving speed?

Why is thermal energy from the Sun transferred to Earth through electromagnetic waves instead of any other type of thermal energy transfer? Electromagnetic waves can carry energy through matter. Electromagnetic waves can travel through empty space.

Why do different elements emit different colors of light