1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
svetlana [45]
3 years ago
12

Why is the sign of the emf of the second peak opposite to the sign of the first peak?

Physics
1 answer:
eimsori [14]3 years ago
7 0
Because AC emf is a sine wave
You might be interested in
A truck hits a brick wall with a force of 120 N. The collision takes 2.0 seconds.
levacccp [35]
Impulse=force*time
impluse=120N*2.0s
impluse=240 Ns
7 0
3 years ago
In the covalent compound C3H6, the Greek preifx used to represent the cation is
gayaneshka [121]
What if when I find my product, I get the same compound as I did in my reactant? For example, FeCl3 + HCl ->FeCl3 + HCl. Then something is wrong. In this case, FeCl3 and HCl usually don't react. In very concentrated solutions of HCl, the FeCl4^- or FeCl6^-3 ion can form. In... There you go my friend
7 0
3 years ago
A car has a mass of 900 kilograms and has a force of 4500 to the left what is the acceleration
pychu [463]

Answer: A- A truck has a mass of 900 kilograms.

If the velocity of the truck is 20 m/s, what is its momentum?

1- 180000 kg·m/s

2-0 kg·m/s

3-9000 kg·m/s

4-18000 kg·m/s

3 0
2 years ago
a cement block accidentally falls from rest from the ledge of a 80.6-m-high building. When the block is 10.8 m above the ground,
fomenos

Answer:

0.229 seconds

Explanation:

Given:

y₀ = 80.6 m

v₀ = 0 m/s

a = -9.8 m/s²

We need to find the difference in times when y = 10.8 m and y = 2.10 m.

When y = 10.8 m:

y = y₀ + v₀ t + ½ at²

10.8 = 80.6 + (0) t + ½ (-9.8) t²

10.8 = 80.6 − 4.9 t²

4.9 t² = 69.8

t = 3.774

When y = 2.10 m:

y = y₀ + v₀ t + ½ at²

2.10 = 80.6 + (0) t + ½ (-9.8) t²

2.10 = 80.6 − 4.9 t²

4.9 t² = 78.5

t = 4.003

The difference is:

4.003 − 3.774 = 0.229

The man has 0.229 seconds to get out of the way.

5 0
3 years ago
PLEASSSE HURRY!!
CaHeK987 [17]

Answer:

d

Explanation:

i am smart

8 0
3 years ago
Read 2 more answers
Other questions:
  • The units of density for a rectangular piece of wood are?
    11·1 answer
  • Does the depth of a pot affect how water freezes
    15·2 answers
  • How do two sublevels of the same principal energy level differ from each other
    5·1 answer
  • You see lightning and 30 seconds later you hear thunder. how far away is the thunderstorm? take the speed of sound to be 339 m/s
    8·1 answer
  • The platform height for Olympic divers is 10 m. A 60 kg diver steps off the platform to begin his dive.
    5·1 answer
  • An embolus can cause which of the following?
    5·1 answer
  • Give an equation for kinetic energy<br>(supplement)​
    14·1 answer
  • Which scientist first suggested that the sun was at the center of the solar system?
    7·2 answers
  • Si un vector tiene una dirección de 2300 a partir del eje x positivo, ¿Qué signos tendrán sus componentes x y y? Si la la razón
    15·1 answer
  • PLEASE HELP!!
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!