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I'm working on this problem out of my book and I'm come to a problem that I'm very confused on. I'm not really sure where to even start with it. The problem is:
Problem: Radium 88Ra224 has a half-life of about 3.6 days. Given 1 gram, how much will still be present after 1 day? After 1 year?
Please explain each step and equations used.
During a mountain climbing trip, it is observed that the water used to cook a meal boils at 90°C rather than the standard 100°C at sea level
A light ray reflects from a mirror hanging vertically on a wall in your bathroom, and the ray strikes a particular point on the opposite wall (see figure below). The bottom end of the mirror is then tilted slightly away from the wall so that the mirr..
The acceleration due to gravity on the Moon's surface is one-sixth that on Earth. What does it weigh on the moon
Some good estimates about the human body can be made if it is assumed that we are made mostly of water. estimate the number of water molecules in that person
A person's body is covered with 1.8 m2 of wool clothing. How much heat per second does the person lose due to conduction
An object with a density of 901.0 kg/m3 and a mass of 895.0 kg is thrown into the ocean. Find the volume that sticks out of the water
a 9.5-uC charge is at x = 15 cm, y = 5.0 cm and a -3.2-uC charge is at x = 4.4 cm, y = 11 cm. Find the force on the negative charge
The distance from the point on the surface of Earth to a point on a surface of the moon is measured by aiming a laser light beam at the reflector on the surface of moon and measuring the time required for the light to make a round trip.
A 118-g ball is traveling to the left with a speed of 26 m/s when it is struck by a racket. find the speed of the ball immediately after it leaves the racket
Two disks are rotating about the similar axis. Disk A has a moment of inertia of 4.83 kg•m2 and an angular velocity of +8.70 rad/s. Determine what is the moment of inertia of disk B
The surface charge density on an infinite charged plane is -2.3 10-6 C/m2. How far does the proton travel before reaching its turning point
Compute the linear momentum and angular momentum of a Frisbee of mass 0.159 kg if it has a linear speed of1.85 m/s and an angular velocity of46.0 rad/s. Treat the Frisbee as a uniformdisk of radius 12.5 cm.
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