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2 years ago

What does a virus look like

Physics

2 answers:

sladkih [1.3K]2 years ago

7 0

Outside to the inside: Capsid, core, genetic material

lora16 [44]2 years ago

6 0

Capsid and core could be some of your answer

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A 16.0 kg canoe moving to the left at 12.5 m/s makes an elastic head on collision with a 14.0 kg raft moving to the right at 16.

juin [17]

A 16.0 kg canoe moving to the left at 12.5 m/s makes an elastic head on collision with a 14.0 kg raft moving to the right at 16.0 m/s.
After the collision the raft moves to the left at 14.4 m/s assuming water simulates a frictionless surface.
Mass of the canoe (m1) = 16 Kg
Mass of the raft (m2) = 14 Kg
Initial velocity of the canoe (u1) = 12.5 m/s
Initial velocity of the raft (u1) = - 16 m/s [Here, the raft's velocity is negative, because the objects are moving in the opposite direction]
Total momentum of the system = m1u1 + m2u2 = [(16 × 12.5) + (14 × -16)] Kg m/s = (200 - 224) Kg m/s = -24 Kg m/s
Final velocity of the raft (v2) = 14.4 m/s
Let the final velocity of the canoe be v1.
Total momentum of the system after the impact = m1v1 + m2v2 = [(16 × v1) + (14 × 14.4)] Kg m/s = 16v1 Kg + 201.6 Kg m/s
According to the law of conservation of momentum, Total momentum of the system before the impact = Total momentum of the system after the impact
or, -24 Kg m/s = 16v1 Kg + 201.6 Kg m/s
or, -24 Kg m/s - 201.6 Kg m/s = 16v1 Kg
or, -225.6 Kg m/s = 16v1 Kg
or, v1 = -225.6 Kg m/s ÷ 16 Kg
or, v1 = -14.1 m/s

Answer:

The final velocity of the canoe is -14.1 m/s or 14.1 m/s to the right.

Hope you could get an idea from here.

Doubt clarification - use comment section.

6 0

1 year ago

How is air resistance similar to gravity? give me two reasons

QveST [7]

Explanation:

I think this would help you. Read this and make your own answer ok.

8 0

2 years ago

A 1210 kg rollercoaster car is

ratelena [41]

Answer: 4.98 m/s

Explanation:

You solve these kinetic energy, potential energy problems by using the fact P.E.+ K.E. = a constant as long as friction is ignored.

PEi = 0 in this case

KEi = ½mVi² = PEf+KEf = mghf + ½mVf²

½1210*8.31² = 1210*9.8*2.26 + ½1210*Vf²

½1210*Vf² = ½1210*8.31² - 1210*9.8*2.26

Vf² = 8.31² - 2*9.8*2.26 = 4.98² so Vf = 4.98m/s

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2 years ago

Marcus used a toaster oven in the morning.He notices that when he plug it in and turn it on the coils inside begin to glow red w

Rasek [7]

Answer:Conversion of electric energy to Heat energy

Explanation:Energy is a quantitative energy measured in JOULES or KILOJOULES which must be transferred to a material for a job to be done. It has also been described as the capacity to do work.

In electric toasters the ELECTRIC ENERGY FROM THE SOURCE IS TRANSFERRED INTO THE TOASTER TO BE CONVERTED TO HEAT ENERGY NEEDED TO TOAST FOODS. Other electrical appliances which converts electric energy to Heat energy includes ELECTRIC BOILERS, ELECTRIC COOKERS etc.

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3 years ago

I HAVE 5 MINUTES!!!!!! A block oscillating on the end of a spring moves from its position of maximum spring stretch to maximum s

Verdich [7]

Therefore, if the block moves from its position of maximum spring stretch to maximum spring compression in 0.25 s, the time required for a full cycle is twice as much; T = 0.5 s.

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2 years ago