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When the angle of refraction is 20 degrees what is the angle of incidence?
It depends what substance the refraction is taking place in. You need to know the refractive index, n then you can use the formula (sin(i))/(sin(r)) = n so sin(i) = n * sin(20) and i = arcsin ( n*sin(20) ) or, equivalently: i = sin^-1 ( n*sin(20) ) If you were using a glass block block, then n=1.5 and i = arcsin (1.5*sin(20)) = 30.86588247 = 30.9 degrees (3 s.f.)
How much is done when an 45 N forces moves a block 20 m?
900 Joules of work
What is the mass of a 196 -N weight?
Weight = mass x acceleration due to gravity 196 = m x 9.81 m = 20 kg
A force of 20N is applied to a 10kg mass on a level frictionless surface What is the acceleration of the mass?
20 N is applied to 10 kg mass. 20 N/10 = 2. The acceleration of mass is 2.
How much work is done when a 100N force moves a block 59m?
W = F x distance W = 100 N x 59 m = 5900 N*m = 5900 J
What is the answer if A spring scale reads 20 N as it pulls a 5kg mass across a table. what is the magnitude of the force exerted by the mass on the spring scale?
It is 20 N.
When the angle of refraction is 20 degrees what is the angle of incidence?
It depends what substance the refraction is taking place in. You need to know the refractive index, n then you can use the formula (sin(i))/(sin(r)) = n so sin(i) = n * sin(20) and i = arcsin ( n*sin(20) ) or, equivalently: i = sin^-1 ( n*sin(20) ) If you were using a glass block block, then n=1.5 and i = arcsin (1.5*sin(20)) = 30.86588247 = 30.9 degrees (3 s.f.)
How many 454g packages of butter can be made from a block of butter with a mass 22.7g?
50 454 packages of butter can be made from the 22.7 kilograms.
How much is done when an 45 N forces moves a block 20 m?
900 Joules of work
An object with a mass of 10.2 kg experiences a force of 20.4 N What is the acceleration of the object?
The mass of the ball is 5 kg. 20 N/ 4.0 M s3 = 5 KG.
What is the mass of a block of gold that measures 20 cm x 15cm x 10cm?
Specific gravity of gold = 19.3 (so density = 19.3 grammes per cubic centimetre) Volume of gold block = 20*15*10 = 3000 cubic centimetre Mass of gold block = 3000*19.3 = 57900 grammes = 57.9 kilogrammes.
What is ingot made of?
n. # A mass of metal, such as a bar or block, that is cast in a standard shape for convenient storage or shipment. # A casting mold for metal.
What is the mass of a 196 -N weight?
Weight = mass x acceleration due to gravity 196 = m x 9.81 m = 20 kg
What is the density of a block of wood with a volume of 30 cubic centimeters and a mass of 600 grams?
density = mass ÷ volume = 600 g ÷ 30 cm3 = 20 g/cm3
A force of 20N is applied to a 10kg mass on a level frictionless surface What is the acceleration of the mass?
20 N is applied to 10 kg mass. 20 N/10 = 2. The acceleration of mass is 2.
What is the density of a block of wood measuring 9cm2cm6cm with a mass of 5.4 grams?
Density= Volume/Mass. Therefore: (9x2x6)divided by 5.4g=Density. 108cm/5.4g=Density. 20=Density.
What is the density of a rectangular block?
It is the mass of the block divided by its volume.
