Answer:
115.565 km
Explanation:
We know
A bus is traveling at 79.7 kilometers per hour east.
How far does the bus travel in 1.45 hours?
We will solve it by using the Distance formula.
Distance = Speed × Time
We take
79.7 x 1.45 = 115.565 km
So, the bus travels 115.565 km in 1.45 hours.
Albert Einstein is a German scientist who developed the theory of relativity. He was born on the March 14, 1879, Ulm, Germany. This theory changed much in the way the scientists looked at the world and set the foundation for many modern inventions, including the nuclear bomb and the nuclear energy.
HOPE THIS HELPS!!!!!!!
The best temperature for your refrigerator should be 40 degrees F, 40 degrees C in this case. (: Hope this helped!
b. Is the speed of Block A (greater/less than/equal to) the speed of Block B? Explain your reasoning.
c. Is the momentum of Block A (greater/less than/equal to) the momentum of Block B? Explain your reasoning.
Answer:
a. the work done by the gravitational force on Block A is less than the work done by the gravitational force on Block B.
b. the speed of Block A is equal to the speed of Block B.
c. the momentum of Block A is less than the momentum of Block B.
Explanation:
a. The work done by the gravitational force is equal to:
w = m*g*h
where m is mass, g is the standard gravitational acceleration and h is height. Given that both blocks are released from rest at the same height, then, the bigger the mass, the bigger the work done.
b. With ramps frictionless, the final speed of the blocs is:
v = √(2*g*h)
which is independent of the mass of the blocks.
c. The momentum is calculated as follows:
momentum = m*v
Given that both bocks has the same speed, then, the bigger the mass, the bigger the momentum.
The work done by gravitational force on blocks A and B is equal as the work is independent of the path. Both blocks have the same speed when they reach the final height due to the conversion of potential energy into kinetic energy. However, the momentum of Block B is greater due to its larger mass.
This question is about the principles of work, energy and momentum in physics. Let's address each part of it:
#SPJ11
Answer:
Gamma rays
Explanation:
Gamma rays are usually defined as a type of electromagnetic radiations, that are characterized by the presence of shorter wavelength and higher energy. These are the common radiations that are released from the radioactive substances, where an unstable nucleus of an atom releases an excess amount of energy by undergoing continuous electromagnetic processes.
These are harmful to humans and other organisms, as they are comprised of very high energy and they can easily penetrate through the bodies of humans and other organisms.
These gamma particles are emitted in the power plants, where the people working in it wear a special type of device that helps them in monitoring the exposure to radiation.
It could also be gamma rays i don't really know