The awnser is tranverse wave
hope that helps
Answer:
The 2 light bulbs can be connected in parallel to each other to avoid disconnection when one bulb burns out.
Explanation:
The parallel connection is required not series. A parallel connection is the connection of electronic components (e.g bulbs, LED, resistors, capacitors etc) in such a way that the same voltage is supplied across the ends of the components. While in a series connection, the components are connected to each other end-to-end.
As regard the question, parallel connection ensures that the brightness any of the bulbs is not affected with respect to the other bulbs. And other bulbs continue to function when any burns out. The 2 light bulbs should be connected in parallel to the baterry to avoid disconnection of all the bulbs.
Answer:
D
Explanation:
1.) The reaction is at dynamic equilibrium.
A: Nitrogen and hydrogen combine at the same rate that ammonia breaks down.
2.) Which statement about the reaction is necessarily correct?
A: Both calcium carbonate and sodium carbonate are being produced.
3.) Both calcium carbonate and sodium carbonate are being produced.
A: The reaction is reversible.
4.) What is the fastest motion that can be measured in any frame of reference?
A: 300,000 km/s
5.) Two people are on a train that is moving at 10 m/s north. They are walking 1 m/s south relative to the train. Relative to the ground, their motion is 9 m/s north.
Why are we able to use these motions to describe the motion relative to the ground?
A: The people are moving much slower than the speed of light so the ground acts as a frame of reference.
Answer:
0.178 °C
Explanation:
Given:
The frictional force, F = 48 N
Number of rubs, n = 18
Distance covered per rub, d = 7.16 cm = 0.0716 m
Total distance covered in 18 rubs, D = 0.0716 × 18 = 1.288 m
mass of the tissues warmed, m = 0.1 kg
Now,
Work done, W = Force × Displacement
W = 48 × 1.288 = 61.8624 J
Now,
Work done is the change in heat
W = ΔQ = 61.8624 J
also,
ΔQ = mCΔT
where, C is the specific heat
for human tissue, C = 3470 J/kg°C
thus,
61.8624 J = 0.1 × 3470 × ΔT
or
ΔT = 0.178 °C
Hence, the change in temperature is 0.178 °C
Answer:
q.1 : Air near candle gets heated up and after this it rises by convection so the thermometer B will receive more heat than the thermometer A So, according to the given condition thermometer B will show a greater rise in temperature.
q.2 : x is the pure sample of compound
. y is the pure sample of element
. z is the mixture of different elements
q.3 : the saliva contains an enzyme salivary amylase (ptyalin) which converts starch in roti into maltose, isomaltose and small dextrins called a-dextrin.
