HRS - Ask. Learn. Share Knowledge. Logo

Questions in physics

[Done] If a rock is sitting in the dirt, the normal force from the ground and [BLANK] are acting on it. Please help.

[Done] Explain why sedimentary rocks are found as a veneer covering large areas of the continental igneous rocks.

[Done] Nicholas spends 20 minutes ironing shirts with his 1,800-watt iron. How many joules of energy were used by the iron?

[Done] How much force is needed to accelerate a 68-kilogram skier at a rate of 1.2 m/s²?

[Done] What is the momentum of a 52 kg carton that slides at [tex]5.0 \, \text{m/s}[/tex] across an icy surface?

[Done] If the potential energy and the kinetic energy are not the same, where did the leftover energy go?

[Done] How much work does a mother do if she lifts each of her twin babies upward 1 meter? Each baby weighs 90 newtons.

[Done] Which has more potential energy? A. A car parked on the top of the hill B. A person on the top of the same hill sitting down eating a sandwich C. A man running fast at the bottom of the same hill

[Done] Your grandmother in Ireland sends you her favorite cookie recipe. Her instructions say to bake the cookies at 190.5°C. To what Fahrenheit temperature would you set the oven to bake the cookies?

[Done] Calculate the average speed of a bicycle that travels 100 m in 20 s.