All categories

3 years ago

Before proceeding into an intersection at a green signal, you should look out for:

Physics

2 answers:

12345 [234]3 years ago

8 0

Answer:

option C

Explanation:

Before proceeding into an intersection at green signal you should look left, right then left.

According to the question,

while proceeding into intersection at green signal one should look for the vehicle waiting to turn left.

so, the option which is most suited for the question is option C

Vehicles in the intersection waiting to turn left.

Valentin [98]3 years ago

6 0

B is correct but I’m not sure

You might be interested in

g To see why an MRI utilizes iron to increase the magnetic field created by a coil, calculate the current needed in a 400 loop-p

Maslowich

Answer:

The current inside the MRI solenoid is 2387 A.

Explanation:

Given;

number of turns, N = 400

radius of the loop, r = 0.66 m

magnetic field, B = 1.2 T

The magnetic field strength inside MRI Solenoid is given by;

B = Nμ₀I

Where;

I is the current needed in the loop

$B= N\mu_o I\\\\I = \frac{B}{N \mu_o} \\\\I = \frac{1.2}{(400)(4\pi* 10 ^{-7})} \\\\I = 2387 \ A$

Therefore, the current inside the MRI solenoid is 2387 A.

4 0

3 years ago

- Lola applies force to the handle of a jack so that she can change the flat tire on her car. If she uses

EastWind [94]

750 energy jack percent efficient

7 0

3 years ago

Eccentricity is used the describe the ___ of an elliptical orbit

Setler79 [48]

Circularity (especially formation of a circle of an orbit)

6 0

3 years ago

A raft of 180 kg carries two swimmers with masses of 50 kg and 80 kg. The raft is initially floating at rest. The two swimmers s

nirvana33 [79]

Answer:

v=0.5m/s

Explanation:

Given a raft of 180kg, and two simmers of 50kg and 80kg:

The two rafts have an initial velocity of zero:

$\bigtriangleup P_{raft}+\bigtriangleup P_{50}+\bigtriangleup P_{80}=0\\\\m_R\bigtriangleup v_R+m_{50}\bigtriangleup v_{50}+m_{80}\bigtriangleup v_{80}=0\\\\m_R\bigtriangleup v_R=-m_{50}\bigtriangleup v_{50}-m_{80}\bigtriangleup v_{80}\\\\\bigtriangleup v_R=\frac{-m_{50}\bigtriangleup v_{50}-m_{80}\bigtriangleup v_{80}}{m_R}\\\\\bigtriangleup v_R=\frac{-(50kg\times3m/s+80kg\times-3m/s)}{180kg}\\\\\bigtriangleup v_R=0.5m/s$

Hence, the raft starts moving with avelocity of 0.5m/s

-The raft will continue moving in the direction it was initially moving. The raft has a larger mass than the combined mass of the two swimmers, by law of momentum conservation, it's change in velocity will be negligible.

8 0

4 years ago

A blacksmith heated 2 kg of iron piece to 120°C in the furnace and took it out of the fire for hammering into thin sheet. The ir

Gnom [1K]

Answer:

94500

Explanation:

120 x2=240

240-30=210

210 x450=94500

4 0

2 years ago