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
HACTEHA [7]
3 years ago
10

Are the correct? PLEASE HELP ASAP

Physics
2 answers:
Trava [24]3 years ago
7 0

Energy is the ablity to dow work.

Power is the time rate at which work is done.

independent variable often along x axis, dependent along y axis.

You can set the independent value, from which the dependent follows.


Archy [21]3 years ago
6 0

Energy is the ablity to dow work.

Power is the time rate at which work is done.

independent variable often along x axis, dependent along y axis.

You can set the independent value, from which the dependent follows.


You might be interested in
Suppose the B string on a guitar is 24" long and vibrates with a frequency of about 247 Hz. You place your finger on the 5th fre
Rudiy27

Answer:

b. E (about 329 Hz)

Explanation:

Given data:

Initial length of the string l1= 24 in

initial frequency f1= 247 Hz

changed length l2= 18 in

Then we have to find the changed frequency f2= ?

We already now that

frequency f ∝ 1/length of the string l

therefore,

\frac{f_1}{f_2} =\frac{l_1}{l_2}

⇒{f_2}=\frac{l_1}{l_2}\times{f_1}

⇒{f_2}=\frac{24}{18}\times{247}

⇒{f_2}=329.33 Hz

7 0
3 years ago
Why is a control group generally very important in an experiment?
Alex17521 [72]

Answer: The control group is the part where you see what happens when you change a variable you want to study/examine. Basically, you need the control group because you need something to see what happens when you change something.

Hope this Helps! :))))

8 0
3 years ago
A two-tailed hypothesis test is used to evaluate __________. A. only a nondirectional hypothesis B. both a nondirectional and di
givi [52]

Answer;

B. both a non-directional and directional hypothesis

Explanation;

A two-tailed test is the standard test of significance to determine if there is a relationship between variables in either direction. Two-tailed tests do this by dividing the .05 in two and putting half on each side of the bell curve.

A non-directional hypothesis is a type of alternative hypothesis used in statistical significance testing. In contrast, a directional alternative hypothesis specifies the direction of the tested relationship, stating that one variable is predicted to be larger or smaller than null value, but not both.


6 0
3 years ago
Read 2 more answers
When would it be easier for a bear to catch a fish: as the fish swims or as its in the air. Explain with how light travels in th
r-ruslan [8.4K]

Answer:

In the air

Explanation:

light in air flows in a straight direction while in water it curves far away from the object(refraction)thus the bear in the air will catch the fish easily because in water the fish is refracted thus the bear may catch its refracted image thinking it is the fish

8 0
3 years ago
A parallel RC circuit has a capacitive reactance of 962 ohms and a resistance of 1,200 ohms what is the impedance of this circui
Alex777 [14]

Answer:

<em>A. 751 ohm</em>

Explanation:

Impedance: <em>This is the total opposition to the flow of current in an a.c circuit by any or all of the three circuit elements ( R, L, C). The unit of impedance is Ohms (Ω). The impedance in a parallel circuit is gives a s</em>

<em>Z = RXₐ/√(Xₐ² + R²)............................... Equation 1</em>

<em>Where Z = The impedance of the a.c circuit, Xₐ = capacitive reactance, R = resistance.</em>

<em>Given: Xₐ = 962 Ω, R = 1200 Ω</em>

<em>Substituting these values into equation 1,</em>

<em>Z = 962×1200/√(962² + 1200²)</em>

<em>Z = 1154400/√(925444 + 1440000)</em>

<em>Z = 1154400/√(925444+1440000</em>

<em>Z = 1154400/1538</em>

<em>Z = 750.59 Ω</em>

<em>Z≈ 751 Ω</em>

<em>Therefore the impedance of the circuit = 751 Ω</em>

<em>The right option is A. 751 ohm</em>

6 0
4 years ago
Other questions:
  • A 60.0-kg skier with an initial speed of 12.0 m/s coasts up a 2.50-mhigh rise and angle is 35 degrees.Find her final speed at th
    9·2 answers
  • About ________ percent of wais scores fall between 70 and 130.
    12·1 answer
  • In a crash test the strapped-in, 75-kg dummy moves a distance of 0.80 m when the test car is slammed straight into a wall at 11.
    14·1 answer
  • An 3.7 lb hammer head, traveling at 5.8 ft/s strikes a nail and is brought to a stop in 0.00068 s. The acceleration of gravity i
    10·1 answer
  • If two lightbulbs are parallel to each other, they have the same brightness. If the same two lightbulbs are put in series with e
    13·1 answer
  • A block that has a mass M = 500 g is hanging at rest on a light string. A projectile with a mass m = 15 g moving horizontally wi
    14·1 answer
  • A ball of mass 0.440 kg moving east (+x direction) with a speed of 3.80 m/s collides head-on with a 0.220-kg ball at rest. If th
    7·1 answer
  • There is a large box and a small box on a table. The same force is applied to both boxes. The large box moves two feet and the s
    8·2 answers
  • Question 5 (2 points)
    10·1 answer
  • An object is moving with an initial velocity of 3.3m/s it is subject to a constant acceleration of 3.7 m/s2 for 10 s. How far wi
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!