Answer:

Answer:

-384.22N

Explanation:

From Coulomb's law;

F= Kq1q2/r^2

Where;

K= constant of Coulomb's law = 9 ×10^9 Nm^2C-2

q1 and q2 = magnitudes of the both charges

r= distance of separation

F= 9 ×10^9 × −7.97×10^−6 × 6.91×10^−6/(0.0359)^2

F= -495.65 × 10^-3/ 1.29 × 10^-3

F= -384.22N

Which of the following is a TRUE statement? a. It is possible for heat to flow spontaneously from a hot body to a cold one or from a cold one to a hot one, depending on whether or not the process is reversible or irreversible. b. It is not possible to convert work entirely into heat. c. The second law of thermodynamics is a consequence of the first law of thermodynamics. d. It is impossible to transfer heat from a cooler to a hotter body. e. All of these statements are false.

A young man walks daily through a gridded city section to visit his girlfriend, who lives m blocks East and nblocks North of where the young man resides. Because the young man is anxious to see his girlfriend, his route to her never doubles back—he always approaches her location. In terms of m and n, how many different routes are there for the young man to take?

When a box is placed on an inclined surface with no friction, it will:

Neptunium. In the fall of 2002, scientists at Los Alamos National Laboratory determined that the critical mass of neptunium-237 is about 60 kg. The critical mass of a fissionable material is the minimum amount that must be brought together to start a nuclear chain reaction. Neptunium-237 has a density of 19.5 g/cm3. What would be the radius of a sphere of this material that has a critical mass?

GUYS PLEASE HELP THIS IS DO IN LIKE 30 MIN!!!!!!Question 1 Which of the following color schemes (specifically in jewel tones) is on trend for 2020? a all of the above b complimentary c analogous d monochromaticQuestion 2 Which of the following color pallettes is on trend for 2020? a primary colors b earth tones c cool tones d hues of pinkQuestion 3 Which of the following items could be painted in a dark color to be on trend in 2020? a toilets b doors c ceilings d baseboardsQuestion 4 Which of the following design genres is OUT in 2020? a country chic b traditional c industrial d bohemianQuestion 5 When designing interiors for the elderly, which of the following items can be used to replace traditional door knobs? a clap lights b sliding glass doors c pocket doors d door leversQuestion 6 What design adaptation can be implemented in the bathroom to help with elderly clients? a walk in shower b garden tub c Jacuzzi d sponge bath stationQuestion 7 Which of the following floor types can aid in safe movement throughout the house? a soft area rugs b cork c cement d slick tileQuestion 8 Where should cabinets be place in the kitchen as a safety measure for designing for the elderly? a basic counter tops that are easily accessible b above the refrigerator c over long/extended cabinets d over the stove

A young man walks daily through a gridded city section to visit his girlfriend, who lives m blocks East and nblocks North of where the young man resides. Because the young man is anxious to see his girlfriend, his route to her never doubles back—he always approaches her location. In terms of m and n, how many different routes are there for the young man to take?

When a box is placed on an inclined surface with no friction, it will:

Neptunium. In the fall of 2002, scientists at Los Alamos National Laboratory determined that the critical mass of neptunium-237 is about 60 kg. The critical mass of a fissionable material is the minimum amount that must be brought together to start a nuclear chain reaction. Neptunium-237 has a density of 19.5 g/cm3. What would be the radius of a sphere of this material that has a critical mass?

GUYS PLEASE HELP THIS IS DO IN LIKE 30 MIN!!!!!!Question 1 Which of the following color schemes (specifically in jewel tones) is on trend for 2020? a all of the above b complimentary c analogous d monochromaticQuestion 2 Which of the following color pallettes is on trend for 2020? a primary colors b earth tones c cool tones d hues of pinkQuestion 3 Which of the following items could be painted in a dark color to be on trend in 2020? a toilets b doors c ceilings d baseboardsQuestion 4 Which of the following design genres is OUT in 2020? a country chic b traditional c industrial d bohemianQuestion 5 When designing interiors for the elderly, which of the following items can be used to replace traditional door knobs? a clap lights b sliding glass doors c pocket doors d door leversQuestion 6 What design adaptation can be implemented in the bathroom to help with elderly clients? a walk in shower b garden tub c Jacuzzi d sponge bath stationQuestion 7 Which of the following floor types can aid in safe movement throughout the house? a soft area rugs b cork c cement d slick tileQuestion 8 Where should cabinets be place in the kitchen as a safety measure for designing for the elderly? a basic counter tops that are easily accessible b above the refrigerator c over long/extended cabinets d over the stove

Answer:

1.32 m.

Explanation:

Below is an attachment containing the solution.

**Answer:**

a) 10.29° upstream

b) t=338.7s

**Explanation:**

If the river is 1km wide and the destination point is 0.5km away downstream, then the angle and distance the the boat has to travel is:

The realitve velocity of the boat respect to the water is:

where β is the angle it has to be pointed at.

From the relative mvement equations:

where

From this equation we get one equation per the x-axis and another for the y-axis. If we square each of them and add them together, we will get 2 equations:

Solving for V:

**V = 3.3m/s** and V=-1.514m/s Replacing this value into one of our previous x or y-axis equations:

The amount of time:

**Answer:**

**Explanation:**

__Rate of Change__

When an object moves at constant speed v, the distance traveled at time t is

We know at time t=0 two friends are at the intersection of two perpendicular roads. One of them goes north at speed v and the other goes west at constant speed w (assumed). Since both directions are perpendicular, the distances make a right triangle. The vertical distance is

and the horizontal distance is

The distance between both friends is computed as the hypotenuse of the triangle

We need to find d', the rate of change of the distance between both friends.

Plugging in the above relations

Solving for d

Differentiating with respect to t

The problem is solved using **Pythagoras' Theorem**, representing the two travel paths forming a right triangle. The rate at which the distance increases between two points moving perpendicularly can be found by differentiating the resulting equation, which yields the expression sqrt[(v^2)+(u^2)].

The question is about the rate at which the **distance** between you and your friend is increasing at time t. It's a typical problem in kinematics. Because the roads are perpendicular to each other, we can solve the problem using Pythagoras' Theorem which states that in a** right-angled triangle**, the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.

Let's denote the **distance** you've traveled as D1 = v*t (because distance = speed * time) and the distance your friend has travelled D2 = u*t. The distance between you can be computed using Pythagoras' Theorem as D = sqrt(D1^2 + D2^2). Hence, D = sqrt[(v*t)^2 + (u*t)^2]. Differentiating D with respect to t using the chain rule will give us the rate at which the distance between you is increasing, which is sqrt[(v^2)+(u^2)].

#SPJ11

B. 60 cm

C. 75 cm

D. 90 cm

B. 60 cm

All parallel light rays are bent through the focal point of a convex lens, so the rays from the flashlight 150 cm above the floor must go through the same point on the principal axis as the rays from the flashlight 120 cm above the floor. The location of the focal point does not change when the position of the object is moved either vertically or horizontally.

All parallel light rays are bent through the focal point of a convex lens, so the rays from the flashlight 150 cm above the floor must go through the same point on the principal axis as the rays from the flashlight 120 cm above the floor. The location of the focal point does not change when the position of the object is moved either vertically or horizontally.

**Answer:**

**Explanation:**

acceleration of test tube

= ω² R

= (2πn)² R

= 4π²n²R

n = no of rotation per second

= 3700 / 60

= 61.67

R = .10 m

acceleration

= 4π²n²R

= 4 x 3.14² x 61.67² x .10

= 14999 N Approx

The concept to solve this problem is related to the relativistic physics for which the speed of the object in different frames of reference is related. This concept is called Velocity-addition formula

and can be written as,

Where,

u = Velocity of a body within a Lorentz Frame

v = Velocity of a second frame

u'= The transformed velocity of the body within the second frame

c = speed of light

Replacing we have to

Therefore the meteor moving with respect to the Earth to 230'700.000m/s