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
aniked [119]
3 years ago
6

Paleobotany is the study of fossil insects. True False

Physics
2 answers:
alexira [117]3 years ago
6 0

Answer:

False

Explanation:

Paleobotany is the study of fossil plants.

aleksklad [387]3 years ago
5 0

Answer:

false

Explanation:

You might be interested in
Einstein and lorentz, being avid tennis players, play a fast-paced game on a court where they stand 19.0 m from each other. bein
Dvinal [7]
So sometimes when you actually do you work it’s happens and you get answers idk about that
7 0
2 years ago
When a generator rotates a coil of wire in a magnetic field, which of the following is produced?
Sloan [31]
The correct answer is an ''electric current''.
4 0
3 years ago
Coherent light with wavelength 598 nm passes through two very narrow slits, and the interference pattern is observed on a screen
Stella [2.4K]

Answer:

1.196 μm

Explanation:

D = Screen distance = 3 m

\lambda = Wavelength = 598 m

y = Distance of first-order bright fringe from the center of the central bright fringe = 4.84 mm

d = Slit distance

tan\theta=\frac{y}{D}\\\Rightarrow \theta=tan^{-1}{\frac{y}{D}}\\\Rightarrow \theta=tan^{-1}{\frac{4.84\times 10^{-3}}{3}}\\\Rightarrow \theta=0.09243\ ^{\circ}

sin\theta=\frac{\lambda}{d}\\\Rightarrow d=\frac{\lambda}{sin\theta}\\\Rightarrow d=\frac{598\times 10^{-9}}{sin0.09243}\\\Rightarrow d=0.00037066\ m

For first dark fringe

dsin\theta=\frac{\lambda'}{2}\\\Rightarrow \lambda'=2dsin\theta\\\Rightarrow \lambda'=2\times 0.00037066\times sin0.09243\\\Rightarrow \lambda'=1.196\times 10^{-6}\\\Rightarrow \lambda'=1.196\ \mu m

Wavelength of first-order dark fringe observed at this same point on the screen is 1.196 μm

3 0
2 years ago
Otion
Scorpion4ik [409]

Answer:

SKID

Explanation:

In general, airplane tracks are flat, they do not have cant, consequently the friction force is what keeps the bicycle in the circle.

Let's use Newton's second law, let's set a reference frame with the horizontal x-axis and the vertical y-axis.

Y axis y

     N- W = 0

     N = W

X axis (radial)

        fr = m a

the acceleration in the curve is centripetal

         a = \frac{v^2}{r}

the friction force has the expression

        fr = μ N

we substitute

       μ mg = m v²/r

       v = \sqrt{\mu g r}

we calculate

      v = \sqrt{0.1 \ 9.8 \ 3}

      v = 1,715 m / s

to compare with the cyclist's speed let's reduce to the SI system

        v₀ = 18 km / h (1000 m / 1 km) (1 h / 3600 s) = 5 m / s

We can see that the speed that the cyclist is carrying is greater than the speed that the curve can take, therefore the cyclist will SKID

5 0
2 years ago
A lamp draws a current of 0.50 A when it is connected to a 120 V source? What is the resistance of the lamp?
emmainna [20.7K]
Given,
Current (I) = 0.50A
Voltage (V) = 120 volts
Resistance (R) =?
We know that:-
Voltage (V) = Current (I) x Resistance (R)
→Resistance (R) = Voltage (V) / Current (I)
= 120/0.50
= 24Ω
∴ Resistance (R) = 24Ω
8 0
3 years ago
Read 2 more answers
Other questions:
  • If the mass of a moving object decreases from 100 grams to 25 grams, what happens to its momentum
    10·1 answer
  • At 250 °C, the equilibrium constant Kp for the reaction PCl5 (g) PCl3 (g) + Cl2 (g) is 1.80. Sufficient PCl5 is put into a react
    9·1 answer
  • A "gauge 8" jumper cable has a diameter d of 0.326 centimeters. The cable carries a current I of 30.0 amperes. The electric fiel
    12·1 answer
  • There is a current I flowing in a clockwise direction in a square loop of wire that is in the plane of the paper. If the magneti
    15·1 answer
  • At what ratio will potassium and sulfur form a binary ionic compound
    15·1 answer
  • Consider a circuit with a main wire that branches into two other wires. If the current is 10 A in the main wire and 4 A in one o
    8·2 answers
  • Which statements can be supported by using a position-time graph? Check all that apply. A negative slope results when an individ
    13·2 answers
  • If the initial speed of the ball was increased, the time of flight of the ball would
    11·1 answer
  • PLEASE HELP, PLS HELP...
    15·1 answer
  • Please help me with this question.... thank u ❤️​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!