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The solid fuel of a 300.kg rocket travelling at 1.64x10^4 km/h is ignited to correct the rocket trajectory in mid-flight to Mars. 10.00 kg of fuel is burnt in 15.00 s. If the exhaust velocity of the fuel, relative to the rocket, is 2.90x10^3 km/h, what is the acceleration of the rocket (in m/s^2) at the start of this burn?
Calculate the Q-value of the alpha decay of 211Po. It was found that 211Po can follow an alpha decay to an meta state. The alpha energy in this decay is 7.275 MeV
A pendulum bob of mass m is released from a height H above the lowest point. Find the heights to which the bobs rise given that the collision is
An iron casting containing a number of cavities weighs 20052.8 N in air and 16121.0 N in water. What is the total volume of all the cavities in the casting
An archer shoots an arrow horizontally at a target 15m away. What was the initial speed of the arrow
q1. how many 95w light bulbs can you use in a 120v circuit without tripping a 17a circuit breaker? the bulbs are
for a horizontal block spring system, the maximum displacement is 15cm. if k = 150N/m, calculate the mass of the block, calculate maximum value of kinetic energy
In a popular amusement park ride, a rotating cylinder of radius 4.00 m is set in rotation at an angular velocity of 6.00 rad/s. The floor then drops away, leaving the riders suspended against the wall in a vertical position.
define the magnitude of the external field. The Speed time graph of a particle moving along a fixed direction is shown below. Obtain the distance travelled by the particle between t=0 and t=10s. What is the average of the particle over this interva..
A disc spins at 20 [rpm]. Calculate the period of rotation (which is the time interval required for 1 revolution)
A 10 microF parellel-plate capacitor with circular plates is connected to a 12.0V battery. What is the charge on each plate
q1. show a analyse to find the time in years that it would take to travel to relatively nearby barnards star which is
A 87 arrow is fired from a bow whose string exerts an average force of 120N on the arrow over a distance of 78cm. Evaluate the speed of the arrow as it leaves the bow?
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