Answer:
Kinetic energy = 127.89 Joules
Explanation:
Kinetic energy is calculated using the following rule:
KE = (1/2)*v* v^2
Where:
m is the mass = 145 g = 0.145 kg
v is the velocity = 42 m/sec
Substitute in the above equation to get the kinetic energy as follows:
KE = (0.5)(0.145)(42)^2
Kinetic energy = 127.89 Joules
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Answer:
A Beam balance (or Beam scale) is a device to measure weight or mass.
Explanation:
Answer:
The neutron is a subatomic particle, symbol
n
or
n0
, with no electric charge and a mass slightly greater than that of a proton. Protons and neutrons constitute the nuclei of atoms. Since protons and neutrons behave similarly within the nucleus, and each has a mass of approximately one atomic mass unit, they are both referred to as nucleons.[6] Their properties and interactions are described by nuclear physics.
Explanation:
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Answer:
Step by step explanation
Step 1
In this step we use the definition of acceleration to determine the expression to integrate. Note that the acceleration is the derivative of velocity with respect to time.
Step 2
Perform integration on the expression from step 1. This calculation is performed as shown below.
Step 3
In this step we use the condition that at 
, the velocity 
to find the exact form of the velocity function. We substitute this point into the velocity function we found in step 2.
Step 4
We now use the function in step 3 to find out when the velocity is zero again.
The velocity is zero again when 
