All categories

3 years ago

Calculate the average speed

Physics

1 answer:

Otrada [13]3 years ago

8 0

Answer:

000000000000000000000000000

You might be interested in

A 140 N block rests on a table. The suspended mass has a weight of 77 N.

Basile [38]

I'm assuming that this is what your diagram looks like because these types of problems always look like this (lol).

Comment if you need clarification!

5 0

3 years ago

Read 2 more answers

An airplane increases its speed from 100 m/s to 160 m/s, at the average rate of 15 m/s2. How much time does it take for the comp

Vladimir [108]

Answer: 4 s

Explanation: In order to solve this problem we have to use tge following kinematic expression:

vf=vo+a*t; where vf and vo are the final and initial speed. a is the average acceleration and t,the time.

then we have:

t= (160-100) m/s/(15 m/s^2)= 4 s

7 0

3 years ago

Read 2 more answers

An electron is accelerated by a constant electric field of magnitude 410 N/C. Find the acceleration of the electron. The electro

Arisa [49]

Answer:

option B

Explanation:

given,

magnitude of electric field, E = 410 N/C

charge of electron , q = 1.6 x 10⁻¹⁹ C

we know,

F = q E

and also

F = m a

equating both the force equation

m a = q E

m is the mass of electron = 9.11 x 10⁻³¹ Kg

so,

$a = \dfrac{q E}{m}$

$a = \dfrac{1.6\times 10^{-19}\times 410}{9.11\times 10^{-31}}$

a = 7.2 x 10¹³ m/s²

The nearest answer is option B.

8 0

3 years ago

Does the collision between the cart and the brick follow the law of momentum conservation? Make a claim (yes or no) and support

murzikaleks [220]

Answer:

yes it does

Explanation:

Going by the law of conservation of momentum, when two objects collides, the momentum of one object is transferred to the other object.

This collision can be elastic or inelastic coliision

let the mass of the brick be m1

the mass of the cart be m2

the velocity (initial and final) of the brick u1 and v1

the velocity (initial and final) of the cart u2 and v2

For elastic collision

m1u1+m2u2= m1v1+m2v2

For inelastic collision the two bodies will move with the same velocity after impact

m1u1+m2u2=(m1+m2)V

7 0

3 years ago

A piece of metal is 4 cm by 10 cm<br>by 2 cm. Find its mass if it has a<br>density of 2 g/cm'.

harina [27]

Answer:

m=ρV

V=LxWxD

V=4x10x2=80

m=2*80=160 grams

Explanation:

Mass is equal to density multiply by volume of object. Volume of rectangle pice can be calculated by multiplying all sides.

3 0

3 years ago