A 45-kg object is lifted 2.7 m from the floor to a table. What is the object's gravitational potential energy in Joule relative to the floor? Round up your result to whole number. Only enter your result without unit.
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- Hoping for complete solutions since I’m having a hard time with this. Pls skip if unsure or not willing to answer the subitems (these are all connected for one item). Thanks in advanced! A small car with mass 1810 [kg] travels at constant speed on the inside of a track that is a vertical circle with radius 9.00 [m] (see figure on the right). Thenormal force exerted by the track on the car when it is at the top of the track (point ?) is 7.56 X 103 [N] A. What is the normal force on the car when it is at the bottom ofthe track (point A)? B. What is the speed v of the car at point B?Thank you for all your answers. I have a quick question. What is the gravitational energy of the ball?Write your answer in the answer sheet for the following questions.12)A 10 kg block slides down a ramp that makes 39o angle with the horizontal. Ifthe coefficient of kinetic friction is 0.3, find the acceleration of the block.13)As a block of mass 7 kilograms drops from the edge of a 40-meter-high cliff itexperiences a loss of energy due to air resistance of 280 J.At what speed will the rock hit the ground?(give your answer to 1 decimal place)14)A ball of mass 80 kg is dropped from 48 meters above the floor. Find the speedof the ball as it strikes the floor.15)A 3860 kg truck moving at 5 m/s westward collides with a 1300 kg car movingat 20 m/s eastward. The two vehicles collide and then move together.Find the common speed and then calculate the final KE.What is the final KE?16)While spinning down from 95 rads/s to rest, a solid cylinder does 3.7 kJ ofwork.If the radius of the disk is 1.2 m, what is the mass?17)A ramp of height 1 m is shown in figure A6, above.A solid sphere rolls down…
- Remember to include given information, basic equations, calculations, and solutions with correct units for full credit. You are NOT to use kinematics unless otherwise stated. In order to catch Ronan by surprise, Groot throws Rocket (8.50 kg) at an angle of 30.0° above the horizontal. If Groot’s arm moves through a horizontal distance of 1.75 m in the process of applying the force at the given angle, a. How much work does Groot do on Rocket if he uses a force of 1200. N to throw him? b. What speed does Rocket reach if he started from rest and the total work was created by Groot alone? c. What would be Rocket’s total range if he followed a parabolic path after release, ending at the same height from which he was thrown?A 25 kg child sitting 2 m from the center of a merry-go-round moves with a speed of 1.25 m/s. What is the centripetal force exerted on the child? Show all work and units for full credit.Explain the term escape velocity?
- What is acceleration? How does knowing you are accelerating show you have net work being done on you?I am stuck on a Physic problem and need help. The question is: Influenced by the gravitational pull of a distant star, the velocity of an asteroid changes from +19.6 km/s to -19.4 km/s over a period of 1.81 years. What is the total change in the asteroid's velocity in m/s? What is the asteroid's average acceleration during this interval in m/s^2?From the figure provided, which has/have the second largest centripetal acceleration? Select all that apply. Select all that are true.a c d e b
- • A horizontally moving tennis ball barely clears the net, a distance a. To remain within the court’s border, a horizontal distance b. Suppose the height of the net is 1.00 m, and the courts border is 1 2.0 m from the bottom of the net. Use g = 10 m/s2 and show that the maximum speed of the horizontally moving ball clearing the net is about 27 m/s (about 60 mi/h). c. Does the mass of the ball make a difference? Defend your answer.What is the change in gravitational potential energy of a 65.5 kg astronaut lifted fromEarth’s surface into a circular orbit of altitude 450 km. Plz don't use a periously answered questions and plz draw a diagram and explainplease answer this question within 30 minutes. i will upvote. Elon Musk decides to launch a satellite that weights 300 kg to a height of 700km above the surface of the earth. What is the kinetic energy (you first have to find centripetal to stay in orbit, then kinetic)