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Question 1:
A car with 60 cm diameter tires is traveling at a constant speed of 100 km/hr. What is the angular velocity of the tires in rad/s?
Question 2:
A 3 kg ball is traveling in a circle of radius 2 meters with a tangential velocity of 2 meters/second. Find the centripetal acceleration of the ball and the centripetal force acting on it.
Question 3:
An arrow is shot at an angle such that it's horizontal velocity is 40 m/s and it's vertical velocity is 20 m/s. Find the horizontal distance the arrow will travel before hitting the ground.
Question 4:
A bolt requires 15 Nm or torque to loosen it. How much force needs to be applied to a 20 cm long wrench to loosen the bolt? Assume the force is applied perpendicular to the handle of the wrench.
Question 5:
A baseball is thrown such that it is in the air for 4 seconds and lands 100 m away. Find the initial vertical and horizontal components of the baseball's velocity.
a 100-kg mass is pulled along a frictionless surface by a force f such that its acceleration is 6 ms2. a 20-kg mass
Two identical clocks are synchronized. One is then put in orbitdirected eastward around the Earth while the other remains on theEarth. Which clock runs slower? When the moving clock returns tothe Earth, are the two still synchronized? Photons of l..
What is this force as a fraction of the runner's weight?
The isotope Po (A-218 Z-84) can decay by either alpha or beta emission. What is the energy release in each case
Suppose 1500 J of heat are added to 5.6 mol of argon gas at a constant pressure of 120 kPa. Calculate the change in volume of the gas
An isolated container holding 30 g of hydrogen gas is at 25degrees C. If 1,000 calories were transferred to the gas, what would be the new temperature of the gas
A 100-g piece of metal initially at 100 C is placed in a 250 gof water contained in a 300-g aluminum vessel initially at 20.o C. what is the specific heat of the unknown piece of metal
A 1 mF, a 2 mF, and a 3 mF capacitor are connected in series, the combination being connected across a 9 volt battery. Which capacitor has the greatest voltage?
a 5.15e4 kg space probe is traveling at a speed of 11300 ms through deep space. retrorockets are fired along the line
A baseball is thrown with an initial velocity of 20 m/s along the horizontal axis and 15 m/s along the vertical axis. The ball soon reaches the highest point, what is the speed at the point? (ignore air friction) Can you give me an explanation as to ..
a biophysicist grabs the ends of a dna strand with optical tweezers and stretches it 27um . how much energy is stored
A 4.29-kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box, Determine the kinetic frictional force that acts on the box
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