The toy car in Figure 20 runs off the edge of a table that is 1.225m high. The car lands 0.4000m from the base of the table. Show all work. How long did it take the car to fall?
You are given 13.0 m of thin wire. You form the wire into a circular coil with 70 turns. If this coil is placed with its axis parallel to a 0.19 T magnetic field, what is the flux through the coil?
how large an angular acceleration must a wheel have is it is to acceleration from rest to 460rad/s after 5rev ?
You are planning a winter ski trip to Crystal Mountain for a solid weekend of downhill shredaing. For those of you have been skiing or snowboarding before you are probably familiar with the difficulty ratings of ski slopes: green circles, blue squares, black diamonds, and double black diamonds. What you may not know is that each of those classifications is based entirely on the steepness of the slope. To facilitate the most righteous weekend ever you do some calculations to determine just how fast you will be going on each slope 5 seconds after setting off down the hill. Assuming you start with a velocity of zero and have a mass of 150lbs in all of your ski gear, how fast will you be going down each slope? Slope Classification Green Circle Blue Square Black Diamond Double Black Diamond Gradient 25% 40% 55% 65% Velocity after 5 seconds: (rounded to the nearest whole number in mph or m/s) For 5 points of extra credit on the next exam: What gradient would be required for the skier to reach 100mph within 5 seconds of dropping down the slope?. Round your answer to the nearest whole number.
a mango tree dropped to the ground from the top of a tree 40m tall. Find How long it takes to the fruit to reach the group if acceleration due to gravity g=10m/s
A block of mass m1 = 14.4 kg is on a frictionless table to the left of a second block of mass m2 = 20.2 kg, attached by a horizontal string (see the figure below). (a) If a horizontal force of 1.53 ✕ 102 N is exerted on the block m2 in the positive x-direction, use the system approach to find the acceleration (in m/s2) of the two blocks. (b) What is the tension (in N) in the string connecting the blocks?
Can someone please explain how to do this? A babysitter pushing a stroller starts from rest and accelerates uniformly at a rate of 0.778 m/s^2. What is the velocity of the stroller after it has traveled 5.54 m?
Suppose a star has a luminosity of 6.0×1026 watts and an apparent brightness of 1.5×10−12 watt/m2 . How far away is it? Give your answer in both kilometers and light-years. Use the inverse square law for light to answer each of the following question.
For general projectile motion with no air resistance, the horizontal component of a projectile's acceleration
A kangaroo moves with a constant speed of 90 km/h for 20 m on a straight road. Calculate the distance traveled in this period of time
Which statement best describes heat? A. Heat flows from cold to hot and is a form of thermal energy. B. Heat flows from hot to cold and is the transfer of thermal energy. C. Heat flows from hot to cold and is a form of thermal energy. D. Heat flows from cold to hot and is the transfer of thermal energy.
An SUV crashes into a wall. The mass of the vehicle is 2,150 kg and the crumple zone rigidity is 342 kN. Assuming the safety cell is perfectly rigid, what will be the acceleration of the SUV during a crash as the crumple zone is collapsing?
