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ANTONII [103]
4 years ago
13

Cold butter placed on hot corn melts because of convection. agree disagree it depends

Physics
1 answer:
frozen [14]4 years ago
7 0

Explanation:

Cold butter placed on hot corn melts because of convection. Butter placed on hot corn melts because it touches the hot corn. Most of the heat is transferred through conduction

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What usually happens to the host’s DNA during the lytic cycle?
VARVARA [1.3K]
The lytic cycle is one of the two phases of reproduction in viruses. In this part of reproduction, the viral RNA joins with the DNA of the host and copies itself into the host's DNA pattern. This will cause the host cells to reproduce the viral cells instead of the original host cells. Overtime as the viral cells continue to reproduce they will overload and eventually cause the host cell to explode. When this occurs, then the produced viruses will continue on to infect the next cell.
6 0
3 years ago
A motor with a brush-and-commutator arrangement has a circular coil with radius 2.5cm and 150 turns of wire. The magnetic field
Amanda [17]

Answer:

(a) 0.81 V

(b) 0.52 V

Explanation:

Number of turns, N = 150

Radius, r = 2.5 cm = 0.025 m

Magnetic field, B = 0.060 T

f = 440 rev/min = 440 / 60 = 7.33 rps

A.

The maximum emf is given by

e = N x B x A x 2 x π x f

e = 150 x 0.060 x 3.14 x 0.025 x 0.025 x 2 x 3.14 x 7.33

e = 0.81 V

B.

The back emf is given by

e' = 2e / π = 2 x 0.81 / 3.14 = 0.52 V

3 0
3 years ago
A student rides her bicycle to school, which is 6 km north of her home. After school, she rides to the grocery store that is 2 k
Free_Kalibri [48]
The total distance traveled from home to the grocery store would be 8km.

Because both distances she traveled were in the same direction, north, both displacement and distance travel were equal.

If the student traveled in two different directions, such as north to the school and south to the grocery store, her distance traveled would be 8km but her displacement would only be 6km.  
3 0
3 years ago
A car with a mass of 1,000 kg moving with an initial velocity of 8 m/s is brought to rest by colliding with a truck. The collisi
ruslelena [56]

Answer:

-40,000 N

Explanation:

First, use the kinematics equation v(f) = v(i) + at.  Final velocity is 0, initial is 8, and time is 0.2 seconds.  Solving for a, you get -40 m/s^2.  Then, use Newton’s second law, F=ma, to find the force.  F = (1000)(-40) = -40,000 N.

4 0
4 years ago
A annoying small child is dropped off a 16.0 m cliff (for complaining about homework). The
belka [17]

Answer:

i would be that annoying child lol

Explanation:

but i just needed this for points sorry :>

4 0
3 years ago
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