A 014 kg pinecone falls 17m to the ground where it lands, Ask an Expert

Academics

A 0.14 kg pinecone falls 17m to the ground, where it lands with a speed of 12 m/s.

a) How much work was done on the pinecone by air resistance? Use two significant figures.

b) What was the average force of air resistance exerted on the pinecone? Use two significant figures.

View complete question

Physics, Academics

Category:- Physics
Reference No.:- M91115115

Have any Question?Write your Review or question?

Related Questions in Physics

Question the position of a mass oscillating on a spring is

Question: The position of a mass oscillating on a spring is given byx = (6.8 cm) cos[2t/(0.91 s)]. (a) What is the frequency of this motion? (b) When is the mass first at the position x =-6.8cm? The response must be type ...

Question a a sled is being pulled along a horizontal

Question: A) A sled is being pulled along a horizontal surface by a horizontal force F_vec of magnitude 600 N. Starting from rest, the sled speeds up with acceleration 0.08 {\rm m/s}^2 for 1 minute. B) Find the average p ...

Question a projectile is fired from ground level at time t0

Question: A projectile is fired from ground level at time t=0, atan angleÎ¸ with respect to the horizontal. It has an initialspeed v0 . In this problem we are assuming that the ground islevel. Part A Find the time tH it ...

Question standing waves on a wire are described by

Question: Standing waves on a wire are described by y(x,t)=(ASWsinkx)sin?t, with ASW = 3.00mm , ? = 975rad/s , and k = 0.790?rad/m . The left end of the wire is at x = 0. Part A: At what distances from the left end are t ...

Question at what speed does a ball hit the ground if you

Question: At what speed does a ball hit the ground if you toss a 120 g ball straight up to just touch the 12-m-high roof of the gymnasium if you release the ball 1.5 m above the ground? Solve this problem using energy. T ...

What What are (a) the x component, (b) the y component, and (c) the z

What are (a) the x component, (b) the y component, and (c) the z component of if r=a-b+c if a =8.0i+6.0j-3.3k, b=-5.5i+4.5j +6.0k and c=1.1i+5.6j+6.3k. (d) Calculate the angle between and the positive z ...

Reactions with little or no activation energy are the

Reactions with little or no activation energy are the least affected by temperature. Why? If the reaction had NO activation energy would it be affected at all by temperature?

Problem suppose a point charge produces a potential of -18

Problem: Suppose a point charge produces a potential of -1.8 V at a distance of 1.1 mm. What is the charge, in coulumbs, of the point charge? The response must be typed, single spaced, must be in times new roman font (si ...

An unfortunate astronaut loses his grip during a spacewalk

An unfortunate astronaut loses his grip during a spacewalk and finds himself floating away from the space station, carrying only a rope and a bag of tools. First he tries to throw a rope to his fellow astronaut, but the ...

Question a ring with radius r and a uniformly distributed

Question: A ring with radius R and a uniformly distributed total charge Q lies in the xy plane, centered at the origin. Part A: What is the potential V(z) due to the ring on the z axis as a function of z? Express your an ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Physics Expert