Answer:
The standard quantity with which we carry out the measurement of any physical quantity of the same kind is called a unit.
Using SUVAT (S is displacement, U is initial Velocity, V is final velocity, A is acceleration, t is time);
S = 80m
U = 0ms^-1
V = ?
A = 9.8ms^-2
T = XXX
Use S U and A to find V;
V^2=U^2+2AS
V^2=0+2*80*9.8
V^2=1568
V=39.6ms^-1
Answer:
The last statement.
Explanation:
Gravity is mgh where m is the mass of the object or the person, g is the gravitational field strength acting on it and h is the height of alleviation of the object or the person and thus is not affected by other forces.
Answer:
1) a radio are uses by astronomy
2) 6 bilion waves
3) expert vertified
Explanation:
1) in contrast to an "ordinary" telescope, which receives visible light, a radio telescope "sees" radio waves emitted by radio sources, typically by means of a large parabolic ("dish") antenna, or arrays of them.and Radio telescopes are also the primary means to track space probes, and are used in the SETI project. so must been
radio are almostly
ceiver by astronomy
2) Radio waves have the longest wavelengths in the electromagnetic spectrum.
3)Expert Verified
Radio telescopes are telescopes that are specially designed for observation of long light wavelengths
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Answer:
c. Cooking waste oil is not considered as a biofuel.
Explanation:
cooking waste oil known as waste vegetable oil is used in the production of biodiesel which is biofuel.the oils undergo trans-esterification process where the reaction produces biodiesel instead of the saphonification