Given:
m₁ = 8 x 10²⁴ kg, mass of planet A
m₂ = 10²⁵ kg, mass f planet B
d = 3 x 10⁷ m, the distance between planets A and B
The gravitational force between planets A and B is
where
G = 6.674 x 10⁻¹¹ (N-m²)/kg²
That is,
F =[ (6.674 x 10⁻¹¹ (N-m²)/kg²)*(8 x 10²⁴ kg)*(10²⁵ kg) ]/(3 x 10⁷ m)²
= 5.9324 x 10²⁴ N
Answer:
Planet A exerts a force of 5.9324 x 10²⁴ N on planet B.
Planet B exerts an equal and opposite force om planet A.
Answer:
A-500 N
Explanation:
The computation of the tension in the chain is shown below
As we know that
F = ma
where
F denotes force
m denotes mass = 7
And, a denotes acceleration
Now for the acceleration we have to do the following calculations
The speed (v) of the hammer is
v = Angular speed × radius
where,
Angular seed = 2 × π ÷ Time Period
So, v = 2 × π × r ÷ P
v = 2 × 3.14 × 1.8 ÷ 1
= 11.304 m/s
Now
a = v^2 ÷ r
= 70.98912 m/s^2
Now the tension is
T = F = m × a
= 7 × 70.98912
= 496.92384 N
= 500 N
Answer:
Difference = 1.83 hours
Explanation:
Let the two trips be A and B respectively.
<u>Given the following data;</u>
Distance A = 2000 miles
Speed A = 400 miles
Distance B = 2000 miles
Speed B = 480 miles per hour
To find the time spent;
a. For trip A.
Time A = distance A/speed A
Time A = 2000/400
<em>Time A = 5 hours</em>
b. For trip B.
Time B = distance B/speed B
Time B = 2000/480
<em>Time B = 4.17 hours</em>
Next, we would find the difference between the two trips.
Difference = Time A - Time B
Difference = 5 - 4.17
<em>Difference = 1.83 hours</em>
<em>Therefore, the return trip was much quicker by 1.83 hours. </em>
Answer:
F=30N
a= 3m/s^2
m=?
F=ma
30=m(3)
30/3=m
m=10kg
The mass of the ball is 10kg
Answer:
Explanation:
According to law of reflection of light ,
angle of incidence = angle of reflection
angle of incidence = i
angle of reflection = r
when angle of incidence increases to i₁ and angle of reflection becomes r₁
According to law of reflection,
i₁ = r₁
i₁ - i = r₁ - r
increase in angle of incidence = increase in angle of reflection .
So angle of reflection also increases .