Please EXPLAIN the RATIONALE of your selected answer in the section below. A large pebble is thrown straight upwards. The ball remains in the air for a total time of 12 seconds. The minimum initial upward speed of the ball (with no air drag) was: Please EXPLAIN the RATIONALE of your selected answer in the section below.   A. about 72 m/s B. about 120 m/s C. about 240 m/s D. about 60 m/s E. about 90 m/s

Q: Fill in your choice below, then EXPLAIN your reasoning in the 'Rationale' section: A traffic officer…

A: From the question, it is given that- Distance travelled by car: s = 8 m Initial speed of car: u1 =…

Q: The tank is to be placed on a hill that is 1 km high above the ground. The enemy’s base is located…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: What is the height of the shelf above the point where the quarter leaves your hand? Express your…

A:

Q: A daring 51 kg swimmer dives off a cliff with a running horizontal leap, as shown in the figure…

A:

Q: Water going over a fall splashes on the rocks 20 m below. (a) What is the water’s velocity at the…

A: Water going over a fall splashes on the rocks 20 m below. (a) What is the water’s velocity at the…

Q: Solve the following word problems. Show your solutions. Final answers should be highlighted and in…

A: Given:- 1)  A boy throws a ball horizontally from the top of the building. The initial speed of the…

Q: Objec still held a certain height t=D0 v= 0 m/s 49 m 19.6 m t = 1s object is free falling v= 98 m/s…

A: Given:) an object under free fall

Q: 14. If a man ran at constant 4 m/s for 40 s and then he ran at 8 m/s back to his starting position.…

A:

Q: A ball is projected upward with an initial speed of approximately 30 m/s. The diagram at the right…

A:

Q: A boy throws a ball horizontally from the top of a building. The initial speed of the ball is 20…

A: As per our guidelines, we are supposed to answer only first one question in case of multiple…

Q: Highest Water Fountain The world's highest fountain of water is located, appropriately enough, in…

A:

Q: A cord connected at one end to a block which can slide on an inclined plane has its other end…

A: When we toss a ball on the ground, it begins to move with some velocity. However, no force should be…

Q: Explain your answer to each of the questions below using diagrams, equations, or any explanatory…

A: a. Does the difference in their speeds stay the same throughout the fall? As the sky divers jump out…

Q: Please explain the following: 1.When you apply a constant force to an object does the object move at…

A: Note: As per the guidelines, we can only answer first question of multiple question. Sorry for the…

Q: PLEASE ANSWER PART 2 . In the World Pond Hockey tournament held in Plaster Rock, NB, a puck on the…

A: The components of a vector making angle a with x axis are rx=rcosary=rsina

Q: Show your solutions. 1. A total distance of travel of 2,000 km breaks every 200 km of a pattern of…

A: "Since you have asked multiple question, as per our guidelines we will solve the first question for…

Q: The motion of a projectile may be described in terms of range and the maximum height it reaches. But…

A:

Q: A golfer hits a golf ball from the ground with an initial speed of 42 m/s at an angle of 53 degrees…

A: Given data: Initial speed of golf ball is, u=42 m/s. The angle with horizontal is, θ=53∘. The height…

Q: Based on the table in the picture answer the following questions.  a. Does height affect the speed…

A: Based on table in picture, a) Height of ramp is increasing but speed is first decreases , then…

Q: Missy’s favorite ride at the Topsfield Fair is the rotor. This is a circular ride (with a radius of…

A:

Q: You stand on the top of a tall building and throw a baseball directly downwards. When the baseball…

A: The acceleration of the ball while falling down is the acceleration due to gravity, g=9.8m/s2. To…

Q: Sketch how you expect the acceleration vs. mass graph to look for balls dropped from rest with the…

A:

Q: c) How can the fan on the airboat be used to change the direction the boat is travelling in? How can…

A: (c)  Airboat's fan can be used for changing direction of boat it can be done by changing direction…

Q: A friend of yours has a one story house with a pool in the backyard. Someone gets the bright idea to…

A:

Q: Problem: As the first human astronaut to land on a distant planet, you are standing on the edge…

A: maximum height of apparatus above the cliff = 3 m Height of cliff = 10 m acceleration due to gravity…

Q: A bullet has a momentum of 1.50 kg m/s. What momentum would the bullet have if it had a.) Twice the…

A:

Q: Short Answer - Answer with proper Physics terminology. You may use jot notes, diagrams, equations,…

A: A skydiver in the spread eagle position encounters more air resistance than a skydiver who assumes…

Q: A golfer hits a golf ball from the ground with an initial speed of 42 m/s at an angle of 53 degrees…

A: The initial velocity of the golf ball, v0 = 42 m/s The angle of projection above the horizontal, θ=…

Q: o Bo m1 m2 Figure P7.6 Problems 66 and 67. 67. * Again consider the track and carts in Figure P7.66…

A: Mass of cart 1, m1 = 10 kg Mass of cart 2, m2 = 20 kg Radius of the loop, r = 0.25 m Let the…

Q: In the figure below, the pulleys and the cord are light, all surfaces are frictionless, and the cord…

A:

Q: A massive space freighter wants to accelerate at 1g.  It takes time for the rocket engines to rev…

A: "Since you have posted multiple questions, so as per strict instructions given to us we will solve…

Q: What is Otter’s average speed and velocity over his entire trip when it takes him 2 minutes to walk…

A:

Q: What is the magnitude of the acceleration a of the chair? What is the magnitude of the norma on the…

A:

Q: You stand on the top of a tall building and throw a baseball directly downwards. When the baseball…

A: Acceleration is defined as the rate of change of velocity. If an object is moving with acceleration,…

Q: In the figure below, the pulleys and the cord are light, all surfaces are frictionless, and the cord…

A: (b) According to the Newton's second law, m2g-2T=m2a                               ...... (1) The…

Q: Gela, a long jumper leaves the ground at an angle of 300 to the horizontal and at a speed of 6 m/s.…

A: The range R of a projectile launched at an angle θ with a velocity V is: R = V2Sin2θ/g Given v = 6…

Q: You throw a ball straight up with a speed v from the top of a cliff, and it lands on the base of the…

A: 11)  Let the height of the cliff be h and the height up to which the ball reaches be s Initial…

Q: he Kingda Ka roller coaster in New Jersey is the world's tallest ride of its kind. As the passenger…

A: a) The expression used to calculate acceleration experienced by passenger on this ride is a=vt…

Q: Need Help? Read It A Your work in question(s) 5 will also be submitted or saved. Submit Assignment…

A: t=Time taken=2.9 su=Initial velocityv=Final velocity=0a=g=Acceleration due to gravity=9.81 m/s2…

Q: Part A What was the speed vAi of puck A before the collision? • View Available Hint(s) Templates…

A:

Q: Question 4 a through c for pratice I just know how to calculate and little confused

A: (a) Given two charges placed along x-axis. Let q1 and q2 be defined as the charges placed at x = 0…

Q: Write your systematic and complete solution in solving the following problems. 1. A ball starts…

A: As per Bartleby guidelines I have solved first question out of multiple questions and if you want…

Q: The blocks A and B are connected by a cable that runs around two pulleys of negligible mass, as…

A: Given Mass of Particle A is ma = 5 kg Mass of Particle B is mb = 3 kg Initial velocity of A is va =…

Q: Use the following information to answers parts a–d. Show all your work. A baseball is batted from a…

A: Base ball batted from height 1.09m  With 39.7m/s  at an angle of 17.8° above the horizontal.

Q: Directions

A: