Ouestion 1

Which of the following would attract? (click all that apply)

north and north

north and south

South and south

Will upvote Wich of the following is not a simple machine? 1.) A bike 2.) A screw 3.) A incline plane 4.) A lever

A 28.6-kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 77.3 N and is directed at an angle of 24 ° above the horizontal. Determine the coefficient of kinetic friction.

How can you increase the strength of a magnetic field inside a solenoid? a. increase the number of coils per unit length c. place an iron rod inside the solenoid b. increase the current d. all of the above

A projectile is launched at an angle with the horizontal. Which statement is true about its motion when it is travelling upward? A. The magnitude of the horizontal velocity increases. B. The magnitude of the vertical velocity remains constant. C.

A girl launches a toy rocket from the ground. The engine experiences an average thrust of 5.26 N. The mass of the engine plus fuel before liftoff is 25.0 g, which includes fuel mass of 12.3 g. The engine fires for a total of 1.90 s. A.

How would an unbalanced chemical equation convey misleading information about what took place during a chemical reaction?

A car rounds a 75-m radius curve at a constant speed of 18 m/s. a ball is suspended by a string from the ceiling the car and moves with the car. the angle between the string and the vertical is:

Emission of light from an atom occurs when an electron

Which is an example of transfroming potential energy to kinetic

Place the ball in the plastic bag, and twist the top so the ball is secure in the bag. Wrap the twisted portion with tape so it stays tight. Use the hole punch or scissors to poke a hole in the part of the bag that's above the ball.