The weight of an object on Earth is determined by

A. the mass of Earth.

B. the distance of the object from the center of Earth.

C. the mass of the object.

D. All of the choices.

An aluminium pot whose thermal conductivity is 237 W/m. K has a flat, circular bottom with diameter 15 cm and thickness 0.4 cm. Heat is transferred steadily to boiling water in the pot through its bottom at a rate of 1400 W.

What scientific practice is this? 1) collecting data 2) asking a question 3) providing explanations 4) communicating results

You have a three-year fixed rate lease of $750/month due to expire next month. Your landlord is willing to renew the three-year lease with a 4% total rent increase. What is your rent over the three-year life of the new lease?

Healthy blood vessels do what more easily? open close or move

What is the resistance of a 7 W light bulb connected to a 7 V battery source. The answer key says. 39 but not sure how they got that?

A projectile is launched over a horizontal surface in such a manner that its maximum height is 3/5 of its horizontal range. Determine the launch angle.

Two identical capacitors are arranged in a circuit. What is the ratio of the equivalent capacitance of the circuit when the capacitors are in series to that when they are in parallel?

A car's position in relation to time is plotted on the graph. What is the car's average velocity for segment C? A) - 4 m/s B) - 0.25 m/s C) 0.25 m/s D) 4 m/s

What percent of my Iodine-131 sample will be left after 7 half-lives?

A 58.0 kg snow skier is on the top of 351 m high hill. After she has gone down a vertical distance of 142 m, what is her mechanical energy? Explain your answer (CER) !