Physics Homework Aid
Physics holds significant importance among the natural sciences, elucidating life's wonders and ranking among the most challenging subjects to master.
QuestionAI is a rich and user-friendly physics problem solver for novice physicists, enabling exploration of atomic properties and interactions, alongside molecular trajectories under various forces. Furthermore, you can delve into the mysteries concealed amidst galaxies with fellow physics enthusiasts. Boldly pose your conjectures and queries to the AI, and authoritative answers will readily emerge.
- Question 27 of 30 55 N of force is being applied to a surface, creating 110 Pa of pressure. What is the area of the surface in metres squared? Enter your answer as a number me
- Q8. A trampoline is made from a sheet of material held in place by stretched springs. The figure below shows a child on a trampoline. a) Position A shows the child's maximum height above the trampoline. Position B shows the lowest position reached by the child when landing on the trampoline. Describe the changes to the stores of energy of the: child springs surroundings as the child moves from position A to position B. __ Child __ __
- 19. A kangaroo can vertically jump over an object 2.5m high. A. What is its initial vertical speed to reach this height? B. How long will it stay in the air if it is jump- ing on a level ground? 20.Calculate the magnitude of the acceleration of a particle moving in a circle of radius r=0.5 m with a constant speed of 10m/s 21. A 0.525 kg ball is attached to a 1.25 m string and swings in a circular path making 2.00 revolutions per second. The angle of the string is nearly horizontal. Find the tension in the string. 22. A 0.525 kg ball is attached to a 1.25 m string and swings in a circular path . The angle of the string away from vertical is 30.0^circ Find the centripetal force acting on the ball and the speed of the ball.
- Per EnergySage, how many solar panels does it take to cover a typical home? 10 to 15 20 to 24 30 to 35 Five to 10
- 22. Suppose your mass is 70.0 kg and your density is 970kg/m^3 If you could stand on a scale in a vacuum chamber on Earth's surface the reading of the scale would be mg=(170.0kg)(9.80N/kg^2)=686 N. What will the scale read when you are completely submerged in air of density 1.29kg/m^3 (b) What will the scale read if you weigh yourself in a swimming pool with your body completely submerged? 23. The aorta is the principal blood vessel through which blood leaves the heart in order to circulate around the body. (a) Calculate the average speed of the blood in the aorta if the flow rate is 5.0L/min The aorta has a radius of 10mm. (b)Blood also flows through smaller blood vessels known as capillaries. When the rate of blood flow in the aorta is 5.0L/min the speed of blood in the capillaries is about 0.33mm/s. Given that the average diameter of a capillary is 8.0mu m calculate the number of capillaries in the blood circulatory system.