What is the net force acting on a 5.0 kg object that has a velocity of 15 m/s and is moving in a

Physics

1 answer:

Sergeeva-Olga [200]3 years ago

3 0

The answer is going to be: 705N

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Heyyyy! can some tell me if im right?

White raven [17]

Answer:

no the answers r b, d, r, and f

Explanation:

5 0

3 years ago

Read 2 more answers

A team of eight dogs pulls a sled with waxed wood runners on wet snow (mush!). The dogs have average masses of 19.0 kg, and the

aliina [53]

Answer:

a) a = 3.29 m/s²

b) a = 3.51 m/s²

Explanation:

mass of dogs = 19 kg

loaded sled mass = 210 Kg

a)writing all the forces in x direction

$\sum F_x=8F_d-f_{s(max)}= (m_s+8m_d)a\\a=\dfrac{8F_d-\mu_sm_sg}{m_s+8m_d}\\a=\dfrac{8\times 185-(0.14)(210)(9.81)}{210+8(19)}$

a = 3.29 m/s²

b) acceleration when sled start to move the friction will now be acting will be kinetic friction.

$a=\dfrac{8F_d-\mu_sm_sg}{m_s+8m_d}\\a=\dfrac{8\times 185-(0.1)(210)(9.81)}{210+8(19)}$

a = 3.51 m/s²

3 0

4 years ago

Ou drag your feet on a carpeted floor on a dry day and the carpet acquires a net positive charge. a. Will you have an electron d

11Alexandr11 [23.1K]

Answer:

1) We will have excess of electrons

2) The number of electrons transferred equals $1.343\times 10^{10}$

Explanation:

Part a)

Since we know that the charge transfer occurs by the transfer of electrons only as it is given that the carpet has acquired a positive charge it means that it has lost some of the electron's since electrons are negatively charged and if a neutral body looses negative charge it will become positively charged. The electron's that are lost by the carpet will be acquired by the feet of the human thus making us negatively charged.Hence we will gain electrons making us excess in electrons.

Part b)

From charge quantinization principle we have

$Q=ne$