In the absence of air resistance, the path of a projectile is a(n)

Give your answer with solution(Easy Question)

Furkat [3]

Volume of any rectangular prism is (length) x (width) x (height).

The box in the picture is definitely a rectangular prism, so its volume is

(length) x (width) x (height) .

That's (4.0 cm) x (6.0 cm) x (2.0 cm) = 48 cm³ .

So the volume of the box is 48 cm³ fer sher, but that's NOT the preferred answer to this question. If you take your time and read all the fine print carefully, you'll see that this sneaky question wants the answer in units of meter³ . In order to produce the answer that it's fishing for, YOU have to be sneaky too. You have to convert units, either before you start doing the calculating, or else convert the units of your result before you choose the answer from the list.

Before you calculate: Convert the given dimensions to (meters). Then

Volume = (0.04 m) x (0.06 m) x (0.02 m)

Volume = 0.000048 m³

<em>Volume = 4.8 x 10⁻⁵ m³</em>

After calculating but before picking the answer:

Volume = (4.0 cm) x (6.0 cm) x (2.0 cm)

Volume = (48 cm³)

Convert:

Volume = (48 cm³) x (1 meter / 100 cm)³

Volume = (48 cm³) x (1 meter³ / 10⁶ cm³)

Volume = (48 cm³ meter³ / 10⁶ cm³)

Volume = 48 x 10⁻⁶ m³

or

<em>Volume = 4.8 x 10⁻⁵ m³</em>

This is exactly the same number as 48 cm³, but this is the way they want to see it, and 48 cm³ isn't. So you have to select choice - <em>D .</em>

5 0

3 years ago

If a circuit contains a 12v battery and two 3 bulbs in series

Paha777 [63]

If the resistance of each bulb is 3 ohms, and they are connected across the battery, then current will flow through them.

In series, the two 3-ohm bulbs will look like a single 6-ohm resistance.

Current = (voltage) / (resistance) = (12v) / (6 ohms) = 2 Amperes.

The battery will need to deliver some power to the circuit.

Power = (voltage) x (current) = (12v) x (2 Amperes) = 24 watts .

Each bulb will dissipate 12 watts, in the form of light and heat.

Do you have a question to ask ?

6 0

4 years ago

If 2.0 j of work Is done raising a 180 g Apple how far was it lifted

andrew11 [14]

The apple is lifted by 1.1 m

<u>Explanation</u>:

Given that, mgh = 2 J and mass of apple = 180g
Step 1: convert grams to kg as work is given in SI units.

180 g = 0.18 kg

Step 2: substitute in the formula for work done.

0.18 * 10 * h = 2

Step 3: calculate the value of h from this formula.

h = 2/1.8

h = 1.11 m

6 0

3 years ago

A projectile fired from a gun has initial horizontal and vertical components of velocity equal to 60 m/s and 80 m/s, respectivel

DerKrebs [107]

This question involves the concepts of projectile motion and launch speed.

(a) The initial launch speed of the projectile is "100 m/s".

(b) The launch angle of the projectile is "53.13°".

<h3>(a) LAUNCH SPEED</h3>

A projectile motion is a motion that takes place on both x and y axes, simultaneously. In this motion the initial launch speed is given by the following formula:

$v_o=\sqrt{v_{ox}^2+v_{oy}^2}$

where,

$v_o$ = initial launch speed = ?
$v_{ox}$ = horizontal component of initial launch speed = 60 m/s
$v_{oy}$ = vertical component of initial launch speed = 80 m/s

Therefore,

$v_o = \sqrt{(60\ m/s)^2+(80\ m/s)^2}\\\\v_o = 100 m/s$

<h3>(b) LAUNCH ANGLE</h3>

Launch angle is given by th following formula:

$\theta = tan^{-1}(\frac{v_{oy}}{v_{ox}})=tan^{-1}(\frac{80\ m/s}{60\ m/s})\\\\\theta=53.13^o$

Learn more about the projectile motion here:

brainly.com/question/11049671

6 0

3 years ago

Determine a valid way of finding the wire’s diameter if you know the resistivity of the material, \rho , and can measure the cur

olganol [36]

Answer:

To find the diameter of the wire, when the following are given:

Resistivity of the material (Rho), Current flowing in the conductor, I, Potential difference across the conductor ends, V, and length of the wire/conductor, L.

Using the ohm's law,

Resistance R = (rho*L)/A

R = V/I.

Crossectional area of the wire A = π*square of radius

Radius = sqrt(A/π)

Diameter = Radius/2 = [sqrt(A/π)]

Making A the subject of the formular

A = (rho* L* I)V.

From the result of A, Diameter can be determined using

Diameter = [sqrt(A/π)]/2. π is a constant with the value 22/7

Explanation:

Error and uncertainty can be measured varying the value of the parameters used and calculating different values of the diameters. Compare the values using standard deviation

7 0

3 years ago