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valkas [14]
3 years ago
10

If a car has a velocity of 85 km/hr, how long will it take to accelerate to 45 km/hr if the acceleration is -3 km/hr/sec?

Physics
1 answer:
sweet [91]3 years ago
6 0

Answer:

slbohohohohhoohhoohooohhoohho

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Aircraft sometimes acquire small static charges. Suppose a supersonic jet has a 0.650 µC charge and flies due west at a speed of
Ganezh [65]

Answer : F=2808\times 10^{-11}\ N

Explanation :

It is given that,

Charge, q=0.650\ \mu C=0.65\times 10^{-6}\ C

Velocity of Aircraft, v=540\ m/s  (in west)

Magnetic field, B=8 \times 10^{-5}\ T ( in north )

Using the relation as :

F=q(v\times B)

Magnetic force is ,

F=0.65\times 10^{-6}\ C\times 540\ m/s\times 8 \times 10^{-5}\ T

F=2808\times 10^{-11}\ N

Using Right hand thumb rule, the direction of force is in the plane perpendicular to the velocity and the magnetic field i.e. -\hat{k}.

4 0
4 years ago
Which are physical characteristics of a material that can be determined by looking at the material from an atomic
Alex787 [66]

Answer:

A D E

Explanation:

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3 0
3 years ago
When driving on a multilane street with two way traffic:?
koban [17]
When driving on multilane street with two way traffic, the best response to this scenario is to drive ahead but if there are vehicles in front of you, it is also best to drive along behind the multilane vehicles. It is not best to over take or to consume the middle lane because it is a multilane street. In which there are only two lanes and over taking it could cause accidents when not careful, and consuming up the middle is not appropriate to take because the lane is for two lanes.
4 0
4 years ago
A dog has a mass of69kg and an acceleration of 2m/s/s. What is the force of the dog?
Anna35 [415]

Answer:

<h2>138 N</h2>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 69 × 2

We have the final answer as

<h3>138 N</h3>

Hope this helps you

7 0
3 years ago
How does temperature affect water potential?
Bond [772]
<span>Water will diffuse down gradients of water potential, just as heat will flow down gradients of temperature and rocks will roll down gradients of gravitational potential</span>
7 0
3 years ago
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