What is dark matter?

An archer fires an arrow straight up into the air with a speed vo = 42 m/s. Neglect air resistance. 1. Find the maximum height h reached by the arrow, in meters. 2.

The force of attraction between 2 objects is called gravity. Why do you think that an object, like your notebook, pulled towards you? Explain your reasoning. I don't need the answer I just don't understand what this question is asking.

Why an object with a smaller mass has a larger acceleration than a larger mass if the same force acts on each?

A physics professor is pushed up a ramp inclined upward at 30.0° above the horizontal as she sits in her desk chair, which slides on frictionless rollers. the combined mass of the professor and chair is 85.0 kg. she is pushed 2.

What is the type of blood spatter that will come from blunt force trauma as opposed to a gunshot wound and why?

Two slits separated by 0.10 mm are illuminated with green light (l = 540 nm). calculate the distance (in cm) from the central bright-region to the fifth bright band if the screen is 1.0 m away.

Group 18 noble gases are inert because a. they readily form positive ions. b. they can have either a positive or a negative charge. c. their outermost energy level is missing one electron. d. their outermost energy level is full.

An engineer wishes to design a hydraulic system that will transmit pressure of 10,000 pascals using a force of 15 newton's how are large an area should the input piston have

if you traveled the first 150km in 2.5 hours, and the second part of the trip, 100km in 1.4 hours. what w your average speed

In which circuit does charge reverse direction many times per second? O A. An AC circuit O B. A parallel circuit O C. ADC circuit O D. A combined circuit