GuideFoot - Learn Together, Grow Smarter. Logo

Questions in physics

📝 Answered - Express [tex]f_x[/tex] and [tex]f_y[/tex] in terms of the length of the vector [tex]f[/tex] and the angle [tex]\theta[/tex] in paired form.

📝 Answered - You are standing 100 meters away from your car when an alligator appears 20 meters away from you on the opposite side. You start to run with a speed of 5 m/s while the alligator's speed is 8 m/s towards you. Will you reach your car before the alligator reaches you? Why?

📝 Answered - A student who weighs 500 newtons climbed the stairs from the first floor to the third floor, 15 meters above, in 20 seconds. How much work did she do?

📝 Answered - A space probe has two engines. Each generates the same amount of force when fired, and the directions of these forces can be independently adjusted. When the engines are fired simultaneously and each applies its force in the same direction, the probe, starting from rest, takes 24.8 s to travel a certain distance. How long does it take to travel the same distance, again starting from rest, if the engines are fired simultaneously and the forces that they apply to the probe are perpendicular?

📝 Answered - How are hot spots used to track plate motion?

📝 Answered - Suppose a magnetic reversal occurred today. How would new rocks at mid-ocean ridges differ from rocks that formed last year?

📝 Answered - What is the difference in the charges on a balloon rubbed in your hair and a glass rod rubbed with silk? Why?

📝 Answered - Gravity and friction are two kinds of A. inertia B. forces C. masses D. gravity

📝 Answered - A cheetah is hunting. Its prey runs for 7.4 s at a constant velocity of 11.3 m/s. Starting from rest, what constant acceleration must the cheetah maintain in order to run the same distance as its prey in the same time?

📝 Answered - What is a lunar eclipse?