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Question: Your crazy uncle Mike has odd preferences for where weights should hang on the force tablet and an obsession with balance. He's only happy if a 130g weight hangs from 0 degrees, and a 190g weight hangs from 137 degrees.
a) where does the third weight need to hang in order for the central disk to be balanced?
b) how much should it weigh?
c) Assume the two given angles have no uncertainty. Use the percent uncertainty on mass found above to calculate the uncertainty in the magnitude of the forces from the given two masses, and propagate this uncertainty to find the uncertainty in the predicted magnitude for the third force neglecting its angle uncertainty
Vector B also has a magnitude of 8.00 units and is directed along the negative x-axis. Using graphical methods, find (a) the vector sum A+B and (b) the vector.
The left ventricle of the heart accelerates blood from rest to a velocity of + 29.5 cm/s. How much time does blood take to reach its final velocity
Mercury is approximately a sphere of radius 2.43 x 106 m. What is its circumference in kilometers and What is its surface area in square kilometers
What is the average angular velocity of the Earth around the sun, Assume a circular counterclockwise orbit, and 365 days in a year
What is the minimal mass of helium (density 0.18 kg/m^3) needed to lift a balloon carrying two people in a basket, if the total mass of people, basket
An electric heater is rated at 1500 W, a toaster at 750 W, and an electric grill at 1000 W. The three appliances are connected in parallel to common 120 V household circuits.
A charged capacitor is connected to a resistor and switch as in the figure below. The circuit has a time constant of 1.60 s. Soon after the switch is closed, the charge on the capacitor is 90.0% of its initial charge.
What is the translational speed of the object. What is the frequency. As the object passes through the lowest point in its motion, what is the direction of the acceleration of the object
An ideal gas in a container is at a temperature of 79.4°C. What is the average translational kinetic energy of a gas molecule in the container?
A deep-space probe moves away from Earth by a speed of0.80c. An antenna on the probe requires 3.0 s, in probe time, to rotate during 1.0 rev. How much time is required for 1.0 rev according to an observer on Earth?
A 67-kg skier is going down a 31 ° slope. The area of eachski in contact with the snow is 0.19 m2. Determine the pressure that each ski exerts on the snow
A car traveling 56 km/h is 23.0 m from a barrier when the driver slams on the brakes. What was the car's constant deceleration before impact
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