What’s the answer here? is it d or c i’m confused

Answers

Answer 1

Answer: D is your answer for this one

Related Questions

When two gears are mashed, the revolutions per minute (rpm) are inversely proportional to the number of gears
Which factors will increase the speed of a sound wave in the air?
Nuclear energy can be used to power _______.a. street lightsb. 4esc. homesd. all of the above
A boy pushes on a wagon so that it accelerates at a rate of 0.50 m/s2. The wagon has a mass of 24 kg. What is the magnitude of the boy's pushing force? (Ignore frictional effects.) 12 N, 12 kg, 48 N, or 48 kg
Which of the following occurs on March 21?a. summer solstice b. winter solstice c. vernal equinox d. autumnal equinox

Which explanation of the solar system best fits the observations of the planets and how they orbit the sun? (Points : 3)       The gravity of a large, massive star passing the sun ripped off blobs of material from it that formed the planets.The planets formed at the center of a collapsing spinning cloud of gas and dust.
       The sun and planets formed from a collapsing spinning cloud of gas and dust.
       A comet hit the sun and sent off fragments that became the planets.

Answers

From those choices, the best is the third one. it relates to why the sun and almost everything else in the solar system spins in the same direction, and also why the abundance of various elements in the planets is so different from what it is in the sun.

Eric is walking forwards at 0.5 m/s and then hears a blackbear charging from behind. He continues to move forward
and increases his speed to 10 m/s within 3 seconds. What was
Eric's acceleration?
0 3.2 m/s
O 3.2 m/s^2
0 -3.2 m/s^2
O 10 m/s^2
O Other:

Answers

Answer:

3.2 m/s^2

Explanation:

current velocity minus intitial velocity, divided by time: a=(v2-v1)/t

The best evidence of Earths rotation is provided by

Answers

The direction of a freely swinging pendulum changes during the day. That is also how we were able to prove that the Earth rotates.

Which types of electromagnetic waves have higher frequencies than the waves that make up ultraviolet light? Check all that apply. -radio waves
-infrared light
-microwaves
-gamma rays
-visible light
-X-rays

Answers

On this list, 'gamma-'s and 'X-'s are the ones.

its gamma rays and x-rays they are the only two out of my knowledge.

A train starting from a distance of velocity of 90 km.h-1 in 10 minutes assuming that the acceleration is uniform find the acceleration and the distance travelled by the train for attending the velocity

Answers

To make this problem solvable and you can get the help you need, I'll complete and arrange some data.

Answer:

Acceleration: $0.0417\ m/s^2$ , Distance=7,500 m

Explanation:

Uniform Acceleration Motion

It's a type of motion in which the velocity of an object changes uniformly over time.

Being a the constant acceleration, vo the initial speed, vf the final speed, and t the time, the following relation applies:

$v_f=v_o+at\qquad\qquad [1]$

The distance traveled by the object is given by:

$\displaystyle x=v_o.t+(a.t^2)/(2)\qquad\qquad [2]$

Using the equation [1] we can solve for a:

$\displaystyle a=(v_f-v_o)/(t)\qquad\qquad [3]$

The problem will be rewritten as follows:

A train starting from rest reaches a velocity of 90 km/h in 10 minutes. Assuming that the acceleration is uniform, find the acceleration and the distance traveled by the train for attending the velocity.

Let's take the relevant data:

vo=0

vf=90 Km/h*1000/3600 = 25 m/s

t = 10 minutes = 10*60 = 600 seconds

Now compute the acceleration by using [3]:

$\displaystyle a=(25-0)/(600)=0.0417$

$a=0.0417\ m/s^2$

Finally, compute the distance:

$\displaystyle x=0*600+(0.0417\cdot 600^2)/(2)$

$x=7,500\ m$

Note: We used the value of the acceleration with more precision than shown.

Acceleration: $\mathbf{0.0417\ m/s^2}$ , Distance=7,500 m

A child on a spinning playground ride is 0.36 m from the center of the ride. The centripetal force on the child is 19 N. What is the mass of the child if the child has a tangential speed of 0.54 m/s?

Answers

Any motion in a curved path represents accelerated motion, and requires a force directed toward the center of curvature of the path. This force is called the centripetal force which means "center seeking" force. The force has the magnitude

F = mv^2 / r

Where f is the centripetal force

M is the mass

V is the velocity

R is the radius

19 N = m ( 0.54 m/s)^2 / 0.36 m

Solving for m

M = 23.5 kg

Answer:

Explanation:

Other Questions

Work is being done in which of these situations? all motions are at a constant velocity

Why were behaviorists unlikely to view cognition as a part of learning?

What is one key physical difference between transition metals and poor metals?

What are the Vedas?a) priests b) religious writings c) writings of the Buddha d) Hindu gods