a train moves east with a speed of 45 m/s a man on the train walks west with a speed of. 4 m/s relative to the train how long does it take the man to move 10m relative to the train?

Which equations represent the relationship between wavelength and frequency for a sound wave? check all that apply

4 An 80 kg skier stands at the top of a 40 meter slope. What is her gravitational potential energy before she skies down the slope? O 3200 O 31,360 19.63 O 15,680

If you perform 40 joules of work lifting a 10-N box from the floor to a shelf, how high is the shelf?

Why do scientist make models?

A ball is thrown horizontally from a 16 m - high building with a speed of 2.0 m/s. How far from the base of the building does the ball hit the ground?

Will make Brainlest! <3 Metals are considered to be good conductors of heat. How do the specific heat values indicate this?

Which example identifies a change in motion that produces acceleration? choices are: 1. a speed skater moving at a constant speed on a straight track 2. a ball moving at a constant speed around a circular track 3.

Which of the following diagnostic procedures uses ultrasound?

Why is it easier to read black text on a white background than to read green text of any light color?

If object A has more mass than object B, does object A contain more matter? Explain.