A skateboarder weighing 74.26 kg goes over a smooth circular hill. If the skateboarder's speed at point A is 42.21 m/s, what is his speed at the top of the hill (point B)?

Q: Suppose you first walk A = 12.0 m in a direction 20.0 degrees west of north and then B = 20.0 m in a…

A:

Q: vector is located in the fourth quadrant. It has a magnitude of 7.941 and an x-component of 5.124.…

A: Given:   Magnitude of vector, V→ =  7.941 units x-component of the vector, Vx = 5.124 units     It…

Q: Your instructor purchases a drone. He gets out of the roof of a building and flies the drone 140…

A:

Q: solve algebraic equation. The unknown is a a=(b+c)2/d b=4 c= -8 d=16

A: The algebraic equation is given as, a=b+c2d The variables are given as, b=4c=-8d=16

Q: Figure shows a map of Olivia’s trip to a coffee shop. She gets on her bike at Loomis and then rides…

A:

Q: fine grains of beach sand are assumed to be spheres of radius a. 45.7 μm. These grains are made of…

A: Given data: The diameter of each grain is, The density of the silicon dioxide grain is, Formula…

Q: None

A: Step 1: Calculate Components of Vector LLx = L × cos(angle) = 35 × cos(60°) = 17.5Ly = L ×…

Q: (b) A daredevil is shot out of a cannon at speed v (m/s) and angle from horizontal. Use dimensional…

A: Solution:-  (a)   unit of range = m  Dimension of range = [L] , L is dimensional representation of…

Q: A spelunker is surveying a cave. She follows a passage 150 m straight west, then 210 m in a…

A:

Q: The figure below shows a vector A. What is the magnitude of the x-component of this vector in…

A: Given: From the graph, the position vectors are given as

Q: In the figure here, a small, solid, uniform ball is to be shot from point P so that it rolls…

A:

Q: Now, complete the conversion problems given below, for homework. 1. How many mm in 1.5 cm? Once you…

A: 1. We know that 1cm is equal to 10mm, so 1.5 cm is equal to 15mm. Yes the answer makes sense.  2.We…

Q: Determine the percentage. A dad holds five coins in his hand. He tells his son that if he can guess…

A: Given:The son would get the money if he guesses the money with 5% error.

Q: Express your answer with the appropriate units. ON B=Value Units Submit Request Answer Part B What…

A: Part A From the rule of vector product, i^×j^=k^-i^×-j^=k^ Since, the resultant points in positive z…

Q: A meteoroid is traveling with a velocity of 10.0 km/s directly toward the Earth when it is located 5…

A: v = 10 km/sec= 10000 m/s initial position = 5 R final position = R

Q: Suppose that a person eats a diet of 2392 Calories per day.  Convert this energy into…

A:

Q: While exploring a cave, a spelunker starts at the entrance and moves the following distances. She…

A:

Q: The acceleration due to gravity for Earth is inversely proportional to the square of the distance…

A:

Q: Part C Show that the force of gravity times the height, mgh, is equal to mv?. Be sure to show that…

A:

Q: Fill each box in the chart with +, -, or 0 to indicate whether the quantity increases, decreases, or…

A: Disclaimer: “Since you have asked posted a question with multiple sub-parts, we will solve the first…

Q: A vector has an x-component of -5.151 and a y-component of -3.443. To three decimal places, the…

A:

Q: Working her way through school, Liz works two part-time jobs for a total of 2626 hours a week. Job A…

A: Given that total working hour is 26 hr, the payment for first job is 6.50 dollar/hr and the payment…

Q: 9) (ex) Two vectors A and B are shown in the figure. After you first determine the components of…

A: This is the given figure Let us first resolve A and B in their x and y components A:  Ax=-12m, Ay=0…

Q: The Bay of Fundy in Nova Scotia, Canada is reported to have the largest tides in the world with high…

A:

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.