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A 0.15kg tumor is treated with α
α particles. There are 2×10
12
2×1012 particles reaching the tumor every second, each having energy 3×10
−15
3×10−15J. What is the absorbed dose given to the tumor
What absorbed dose of α
α- particles(Q=20) causes as much biological damage as a 100Gy dose of protons(Q=10).
An object in circular motion is known to have an angular velocity of 10 rad/s. The net acceleration of the object is 40 m/s^2 with an angle of 30 degrees with respect to the tangential acceleration. Solve for the following:
a. Tangential acceleration of the object.
b. Tangential velocity of the object.
c. The time it takes to complete 1 cycle/revolution.
d. The net force on the object if its mass is 1200g.
From the time of the call, the boat was carried away by the sea currents 70.0 km in a direction of 80.0° East of North. The boat was later found 100 km, 25.0° South of East away from the Coast Guard station. At the time of distress call, what is the location of the boat from the Coast Guard station?
.
A 14-kg object is dropped from rest. How far will it be in 3 seconds?
Determine the total current I in the Fig. 2?
: 50
Marks
10
Solve the given network circuit by using Mesh analysis to find V0 and Vx and also find the voltage across each resistor element in Fig.1?
2
The silicon controlled rectifier connected device has 100 sin 314t supply voltage. The resistance and inductance are connected in series with the silicon controlled rectifier.If the latching current 4mA, find the minimum width of the gate trigger pulse required to properly turning ON the SCR?
a resultant force of 4.5 N directed 30 north east is acting on a particle. what force is needed to bring the particle into a state of equilibrium
A 15.2 kg block is dragged over a rough, horizontal surface by a constant force of 133 N acting at an angle of 34.2 ◦ above the horizontal. The block is displaced 50.6 m, and the coefficient of kinetic friction is 0.176.Find the magnitude of the work done by the force of friction.
A 15.2 kg block is dragged over a rough, horizontal surface by a constant force of 133 N acting at an angle of 34.2 ◦ above the horizontal. The block is displaced 50.6 m, and the coefficient of kinetic friction is 0.176. Find the magnitude of the work done by the force of friction.
