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Serga [27]
3 years ago
10

Youre driving on a straight road (in the +x direction) at a constant speed of 27 m/s. In 10 seconds, you speed up to 34 m/s to p

ass a truck.a) Assuming your car speeds up at a constant rate (constant force by the road on the tires), what is your average x component of velocity, during the maneuver?
Physics
1 answer:
aleksley [76]3 years ago
6 0

To solve this problem we will apply the concepts related to the kinematic equations of linear motion. For such an effect we will define the average speed, as the distance traveled in the established time.

Our values are given under the following conditions:

v_i = 27m/s

x_1 = v_1 *t

x_1 = 27*10 = 270m

The final distance covered in those 10 seconds at 34 m / s would be

x_2 = 34*10

x_2 = 340m

Therefore the average speed would be the sum of those distances in the total travel time

v_{Avg} = \frac{340+270}{20}

v_{Avg} = 30.5m/s

Therefore the average velocity is 30.5m/s

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Meteoroids are small objects in space, usually made of rock or metal. These bodies often get close to a planet and fall through
ser-zykov [4K]

Answer:

1. A burning streak of light, called a Meteor.

2.The rocky bodies that survives the fall to the planet’s surface are Meteorites.

Explanation:

Let us see the difference between them.  

  1. Asteroids: They are the remnants of a broken planet orbiting the sun in between Mars and Saturn.  They are small rocky bodies from a tennis ball size to larger ones weighing a few tones.
  2. Meteoroids: They are the small rocky objects of pebble size formed due to the collision of asteroids.
  3. Meteors: These are pebble size objects that enter Earth's atmosphere and burns off by forming streaks of light.
  4. Meteorites: These are rocky objects bigger than meteors than don't burn out completely and fall on the earth's surface.
  5. Comets:  These are objects mainly made of dust and ice that orbit the sun in a highly elliptical orbit. This composition makes a long tail when approaching the sun.
4 0
3 years ago
Read 2 more answers
All of the following are ways in which sedimentary rocks form EXCEPT
Anna71 [15]

Except A. Lava cooling

6 0
3 years ago
What velocity in km/hr would it take to accelerate a 2 kg object to the same momentum of a 1500 kg object with a velocity of 1.6
Lynna [10]

Answer:

v = 4374 Km/h

Explanation:

Given that,

Mass of the smaller object, m = 2 Kg

Mass of the bigger object, M = 1500 Kg

Velocity of the bigger object, V = 1.62 m/s

Velocity of the smaller object, v = ?

The product of its mass and velocity of a body is equal to its linear momentum. It is given by the formula

                                p = mv  Kg m/s

To find the momentum of the bigger object, substitute M and V in the above equation

                                p = 1500 Kg x 1.62 m/s

                                   = 2430 Kg m/s

The velocity imparted to the small body to attain this momentum is given by the relation

                               v = p/m  m/s

                                   = 2430 Kg m/s  /  2 Kg

                                   = 1215 m/s

By converting the velocity to Km/h

                                v = 4374 km/h

Hence, the velocity of the 2 Kg object is v = 4374 km/h

6 0
3 years ago
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.60 mm. If a
nata0808 [166]

Answer:

Explanation:

(a) For the calculation of the Electric field we use

E=\frac{V}{d}=\frac{15.0V}{1.6*10^{-3}m} =9375\frac{N}{C}

(b) The capacitance is calculate by using the expression

C=\frac{\epsilon_{0}A}{d}=\frac{8.85*10^{-12}C^{2}/(Nm^{2})*(7.6*10^{-4}m^{2})}{1.6*10^{-3}m}=4.2*10^{-12}C

(c) Finally, the charge on each plate is

Q=CV=(4.2*10^{-12}C)(15V)=6.3*10^{-11}C

I hope this is useful for you

Regards

4 0
3 years ago
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A block with a mass of 9.00 kg is pulled at a constant speed across a horizontal tabletop with a spring scale. The scale reads 6
snow_tiger [21]

Answer:0.69

Explanation:

Coefficient of kinetic friction=f/R=61.8/90=0.69

7 0
3 years ago
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