Answer:
V2 = -25.93 m/s
Explanation:
First of all, we know that;
Momentum = mass x change in velocity
Thus;
Momentum = m(v2 - v1)
Also, we know that;
Impulse = force x time
And also that;
Momentum = Impulse
From the question, m = 0.145kg and V1 = 32m/s while impulse = -8.4 N.s
Thus;
0.145(v2 - 32) = -8.4
Now,
0.145v2 - 4.64 = -8.4
0.145v2 = -8.4 + 4.64
0.145v2 = -3.76
v2 = -3.76/0.145
= -25.931 m/s and to two significant figures gives -25.93 m/s
Pierre curie was the one who discovered radium
Answer:
Known as automatic tire chains and sometimes referred to by brand names like Onspot or Insta-Chain, these chains essentially hang listlessly from the vehicle's suspension until inclement weather arrives. When that happens, a driver can flip a switch that will lower the chains so they hang in front of the back tires.
Explanation:
(Happy to Help)
Answer:
449.37412 N
Explanation:
G = Gravitational constant = 6.67259 × 10⁻¹¹ m³/kgs²
m = Mass of satellite = 438 kg
M = Mass of planet
T = Time period of the satellite = 24 h
r = Radius of planet = 
The time period of the satellite is given by
The gravitational force is given by
The force acting on this satellite is 449.37412 N
I had this question before can you show me the answer choices
