A car can accelerate from rest to 25 m/sec in 12 seconds on a level road. The weight of the car is 10,000 newtons. Determine (a) power used in the acceleration in Kw. (b) Maximum speeed it will be able to maintain on an uphill road of angle 30 degrees. (c) Work done by the force during the first 5 seconds from start. (d) avera
See the attached file for the formulas. Determine an appropriate step size h by assuming that an h that works as expected for simple harmonic motion is good enough for the given initial angle. In particular, if the position at the end of one period is within 0.1% of the original point, we'll be satisfied.
Find the unitary transformation which transforms into a diagonal matrix and verify that the diagonal elements are 0 , 3, and 3
Mars has a mass of about 6.4 x 10^23 kg, and its moon Phobos has a mass of about 9.6 x 10^15 kg. If the magnitude of the gravitational force between the two bodies is 4.6 x 10^15 N, how far apart are Mars and Phobos? Please show the work, answer and the formulas you used. Thanks!
"A 276 kg piano slides 4.02 m down a 30.2° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline, as seen in the figure (attached in a Word file). The effective coefficient of kinetic friction is 0.400. Calculate the work done by the man on the piano." See attached file for full pro
On a frozen pond, a 10.6 kg sled is given a kick that imparts to it an initial speed of V(0) = 1.73 m/s. The coefficient of kinetic friction between the sled and the ice is mu(k) = 0.102. Use the work-kinetic energy theorem to find the distance the sled moves before coming to rest.
See attached diagram. Q. A block of mass 60 Kg has an initial momentum of 100kg.m/sec travelling from A to B on a surface of coefficient of friction of 0.4. A force F is applied to stop the block. It took the force 4 seconds to bring the block to rest at point B. 1. What is the value of force F if the angle of top theta
Q1. A stone of mass 80 grams is released from rest at the top of a vertical cliff. After falling for 3 seconds, it reaches the ground and penetrates 9 cm into the ground. Calculate: 1. the height of the cliff 2. the average force resisting the penetration (assume gravitational acceleration g=10m/sec2)
Clarify: uniform Circular Motion Potential Energry Work Kinetic Energy Conservation of Engery Work by External Forces Newtons Laws 1,2,3 I need your help on what are the main things i would need to know from those areas in-order to solve relating problems
On an incline a 2.00 kg block is released 4.00m from a long spring with a force constant k= 60.0 N/m that is attached at the bottom of the incline. The incline makes the angle of 53 degrees with the horizontal, and the coefficients of friction between the block and the incline are u static = .40 and uk= .20. a) what is the s
I think I have both answers, but I really need (b) explained. You go to a pumpkin patch to select your Halloween pumpkin. You lift the 3.2kg pumpkin to a height of 1.2 m, then carry it 50.0 m on level ground to the checkout stand. (a) Calculate the work you do on the pumpkin as you lift it from the ground, and (b) How m
A box is given a push so that it slides across the floor. How far will it go, given that the coefficient of kinetic friction is 0.190 and the push imparts an initial speed of 4.20 m/s?
A thick rope with a length of 5m is draped over a pulley, such that the right side y=3m is dangling free and on the left side L-y=2m is dangling free. The rope has a mass of 10kg. Since the longer side is more massive than the shorter side, the rope begins falling downward, with the shorter end going up towards the pulley. As
See attached file. A perfectly elastic rubber framework is stretched by a force applied to its end. This force as a function of the x coordinate of the end is: (1) F = 52.8 x + 38.4 x^2 PART a. By integration, find the work done by this applied force from position x1=.5 m to x2= 1 m. PART b. With the end at position
Vector A is 3.00 units in length and points along the positive x-axis. Vector B is 4.00 units in length and points along the negative y-axis. Use the graphical methods to find the magnitude and direction of the following vector: B.) A-B The work I need to show to complete this problem is a free body diagram, formulas, work
As shown in the figure a uniform solid sphere rolls on a horizontal surface at 30 m/s and then rolls up the incline. If frictional losses are negligible, what will be the value of its height when the it stops ?
The generator at a power plant produces AC at 24,000 Volts. A transformer steps this up to 345,000 Volts for transmission over power lines. If there are 2,000 turns of wire in the input coil of the transformer, how many turns must there be in the output coil. Please show the work.
In 1993, the world record in the 200-m dash was 19.72s. What was the average speed in m/s? What was the average speed in mph? please show work!
X-ray production: dependence of wavelength and intensity on various parameters. Tips to remember.
A positive charge of 2X10-12 Coulombs placed 10cm from another charge experiences a repulsive force of 9X10-9 Newtons. What is the sign and magnitude of the other charge?
Two graduations on the stem of a lactometer are 0.6 and 0.9. Find the graduation exactly midway between them.
Which of the following cylindrical rods of the same material with its ends at the same steady difference of temperature will conduct maximum heat ? 1. Lenght 100 cm & radius 1 cm 2. length 200 cm & radius 1 cm 3. length 400 cm & radius 2 cm 4. length 100 cm & radius 2 cm
A lorry travelling on the level road at 40 km/h can be stopped by its brakes in a distance 16 m. Find the speed from which it can be brought to rest in the same distance when descending a hill whose angle of slope is Sin^-1 [1/15]
(1) How will the pitch of an organ pipe be affected by change of temperature and humidity ? (2)Why do the sound waves travel through longer distances during night than during day ? (3)When a hot body cools a cool one, are their temperature changes equal in magnitude ?
Benzene has a density of 0.90gm/cm^3 at 0 deg C and a coefficient of cubical expansion of 0.0012 per deg Celsius. Wooden balls (of density 0.88g/cm^3) therefore float in it at 0 deg Celsius. If the wood has a mean coefficient of linear expansion of 4 x 10^-5 per deg Celsius, calculate at what temperature the balls will just sink
1: A plane is inclined at an angle of 30 deg. w/ respect to the horizon. A block of mass 6.0 kg is placed at the bottom of the plane and given an initial velocity of 3.0 m/sec up the plane. The coefficient of friction between the block and plane is 0.25. a) How far up the plane will the block go? b) Assuming the block slid
Springs A and B are identical except that A is stiffer than B, that is the force constant Ka is greater than the force constant Kb. On which spring is more work expended if, (a) They are stretched by the same amount? (b) They are stretched by the same force?
A body which is uniformly accelerated, changes its velocity from 36km/h in one direction to 18km/h in the opposite direction in 6 seconds. Find the total distance traveled in that time.
Which of the following pairs is NOT matched properly? A) photon-boson B) neutron-baryon C) proton-lepton D) graviton-boson
Graph a given record of force vs end location, for a certain spring, find its force constant. Develop F(x) and PE(x).
On a frictionless table, one end of a spring is fixed. A cord attached to the free end pulls it along a meter scale beginning from 0. A record is made of the position of the free end, x, and the resisting force, F, exerted by the spring on the cord. SEE ATTACHMENT #1 for the parameters and a record of F vs x, showing position