Subatomic particles that do not possess any charge but provide mass to atoms are called

Do these examples represent unbalanced or balanced forces?

A body of mass 5kg falls from height of 10m above the ground what kinetic energy of the body before it strike the ground

To obtain the number of meters from a distance measured in centimeters, you must A. multiply B. divide by the number A. 5,280 B. 10 C. 12 D. 100

If an electron is moved a certain distance directly opposite an external electric field, what can we say about the change in the electric potential energy of the system?

A camcorder has a power rating of 15 watts. If the output voltage from its battery is 5 volts, what current does it use?

What color of light can plants "see"?

Two tiny beads are 25 cm apart with no other charges or fields present. Bead A carries 10 µC of charge and bead B carries 1 µC. Which one of the following statements is true about the magnitudes of the electric forces on these beads

A ball is thrown straight up at 20 m. What is the balls velocity as it hits the ground?

Block 1 and Block 2 have the same mass, m, and are released from the top of two inclined planes of the same height making 30 degree and 60 degree angles with the horizontal direction, respectively.

Water waves change direction when they encounter water of different depths and begin to move at different wave speeds. This is called A. reflection B. constructive interference C. the Doppler effect D. refraction